{"id":275,"date":"2024-10-03T14:15:06","date_gmt":"2024-10-03T05:15:06","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=275"},"modified":"2025-03-24T08:54:55","modified_gmt":"2025-03-23T23:54:55","slug":"java-foreach%e3%83%ab%e3%83%bc%e3%83%97%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%9f%ba%e7%a4%8e%e3%81%8b%e3%82%89%e5%bf%9c%e7%94%a8%e3%81%be%e3%81%a7%e8%a7%a3%e8%aa%ac%e3%81%99","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=275","title":{"rendered":"Java foreach\u30eb\u30fc\u30d7\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u89e3\u8aac\u3059\u308b7\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"<div id=\"sgb-css-id-1\">\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">1. Java foreach\u30eb\u30fc\u30d7\u3068\u306f\uff1f\u57fa\u672c\u6982\u5ff5\u3068\u69cb\u6587\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u306e\u9055\u3044\u3092\u7c21\u5358\u306b\u8aac\u660e<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">foreach\u30eb\u30fc\u30d7\u306e\u57fa\u672c\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">2. foreach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u4f8b\uff1a\u914d\u5217\u3068\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u64cd\u4f5c<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u914d\u5217\u306b\u5bfe\u3059\u308bforeach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-7\">List\u3001Set\u3001Map\u306a\u3069\u5404\u7a2e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u306eforeach\u30eb\u30fc\u30d7\u306e\u6d3b\u7528<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">foreach\u30eb\u30fc\u30d7\u4f7f\u7528\u6642\u306e\u7559\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">3. foreach\u30eb\u30fc\u30d7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff1a\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u7279\u6027\u3068\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u306e\u901f\u5ea6\u6bd4\u8f03<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3078\u306e\u5f71\u97ff<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-16\">4. foreach\u30eb\u30fc\u30d7\u306e\u5236\u9650\u4e8b\u9805\u3068\u56de\u907f\u7b56<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3067\u304d\u306a\u3044\u554f\u984c\u3068\u305d\u306e\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-19\">\u30eb\u30fc\u30d7\u5185\u3067\u306e\u8981\u7d20\u306e\u524a\u9664\u30fb\u5909\u66f4\u6642\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-24\">\u4ee3\u66ff\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-25\">5. Java 8\u4ee5\u964d\u306eforeach\u30eb\u30fc\u30d7\uff1a\u30e9\u30e0\u30c0\u5f0f\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-26\">forEach()\u30e1\u30bd\u30c3\u30c9\u3068\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3063\u305f\u65b0\u3057\u3044\u53cd\u5fa9\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-30\">Stream API\u3068foreach\u30eb\u30fc\u30d7\u306e\u76f8\u4e92\u904b\u7528\u6027<\/a>      <\/li>      <li>        <a href=\"#i-34\">\u4f7f\u3044\u5206\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-35\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u306e\u8003\u616e\u4e8b\u9805<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-36\">6. foreach\u30eb\u30fc\u30d7\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-37\">\u9069\u5207\u306a\u5909\u6570\u540d\u3068\u30b3\u30e1\u30f3\u30c8\u306e\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-38\">\u30cd\u30b9\u30c8\u3055\u308c\u305fforeach\u30eb\u30fc\u30d7\u306e\u6271\u3044\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-39\">\u4e00\u822c\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-40\">\u3088\u308a\u826f\u304f\u3059\u308b\u3059\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-41\">7. foreach\u30eb\u30fc\u30d7\u306e\u4ee3\u66ff\u624b\u6bb5\uff1a\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9078\u629e\u80a2<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-42\">Java 8\u306eStream API\u3092\u4f7f\u7528\u3057\u305f\u7e70\u308a\u8fd4\u3057\u51e6\u7406<\/a>      <\/li>      <li>        <a href=\"#i-45\">\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-48\">\u4f7f\u3044\u5206\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-49\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u306e\u8003\u616e\u4e8b\u9805<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-50\">8. \u307e\u3068\u3081\uff1aJava foreach\u30eb\u30fc\u30d7\u306e\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-51\">foreach\u30eb\u30fc\u30d7\u6d3b\u7528\u306e\u305f\u3081\u306e5\u3064\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-52\">\u3055\u3089\u306a\u308b\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3068\u5b9f\u8df5\u7684\u306a\u8ab2\u984c<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">1. Java foreach\u30eb\u30fc\u30d7\u3068\u306f\uff1f\u57fa\u672c\u6982\u5ff5\u3068\u69cb\u6587\u3092\u7406\u89e3\u3057\u3088\u3046<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-2\">\n<p>Java\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u3001\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u4f5c\u6210\u306f\u5e38\u306b\u91cd\u8981\u306a\u8ab2\u984c\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u3001foreach\u30eb\u30fc\u30d7\u306f\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u7c21\u5358\u306b\u51e6\u7406\u3067\u304d\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u306e\u57fa\u672c\u6982\u5ff5\u3068\u69cb\u6587\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-3\">\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u306e\u9055\u3044\u3092\u7c21\u5358\u306b\u8aac\u660e<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-4\">\n<p>foreach\u30eb\u30fc\u30d7\uff08\u62e1\u5f35for\u6587\u3068\u3082\u547c\u3070\u308c\u308b\uff09\u306f\u3001Java 5\u304b\u3089\u5c0e\u5165\u3055\u308c\u305f\u5236\u5fa1\u69cb\u9020\u3067\u3059\u3002\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">for\u30eb\u30fc\u30d7\u3068\u306e\u9055\u3044<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-5\">\n<li><strong>\u30ab\u30a6\u30f3\u30bf\u5909\u6570\u304c\u4e0d\u8981<\/strong>\uff1a \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u660e\u793a\u7684\u306b\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-6\">\n<li><strong>\u9577\u3055\u6307\u5b9a\u304c\u4e0d\u8981<\/strong>\uff1a \u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u9577\u3055\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\n<li><strong>\u7c21\u6f54\u6027<\/strong>\uff1a \u30b3\u30fc\u30c9\u304c\u3088\u308a\u77ed\u304f\u3001\u8aad\u307f\u3084\u3059\u304f\u306a\u308b\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-8\">\n<p>\u4f8b\u3048\u3070\u3001\u914d\u5217\u306e\u5168\u8981\u7d20\u3092\u51fa\u529b\u3059\u308b\u5834\u5408\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5f93\u6765\u306efor\u30eb\u30fc\u30d7\nString[] fruits = {\"Apple\", \"Banana\", \"Orange\"};\nfor (int i = 0; i &lt; fruits.length; i++) {\n    System.out.println(fruits[i]);\n}\n\n\/\/ foreach\u30eb\u30fc\u30d7\nString[] fruits = {\"Apple\", \"Banana\", \"Orange\"};\nfor (String fruit : fruits) {\n    System.out.println(fruit);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-9\">\n<p>foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30b3\u30fc\u30c9\u304c\u3088\u308a\u7c21\u6f54\u306b\u306a\u308a\u3001\u4eba\u9593\u306e\u610f\u56f3\u3092\u76f4\u63a5\u7684\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">foreach\u30eb\u30fc\u30d7\u306e\u57fa\u672c\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\n<p>foreach\u30eb\u30fc\u30d7\u306e\u57fa\u672c\u69cb\u6587\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">for (\u578b \u5909\u6570\u540d : \u914d\u5217\u307e\u305f\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3) {\n    \/\/ \u51e6\u7406\u5185\u5bb9\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u69cb\u6587\u306e\u8981\u7d20<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-12\">\n<li><strong>\u578b<\/strong>\uff1a \u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3059\u308b\u8981\u7d20\u306e\u578b\u3092\u6307\u5b9a\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-13\">\n<li><strong>\u5909\u6570\u540d<\/strong>\uff1a \u5404\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u73fe\u5728\u306e\u8981\u7d20\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u306e\u5909\u6570\u540d\u3092\u6307\u5b9a\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<li><strong>\u914d\u5217\u307e\u305f\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/strong>\uff1a \u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5bfe\u8c61\u3068\u306a\u308b\u914d\u5217\u307e\u305f\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3002<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-15\">\n<p>foreach\u30eb\u30fc\u30d7\u306e\u52d5\u4f5c\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">foreach \u30eb\u30fc\u30d7\u306e\u52d5\u4f5c\u5185\u5bb9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-16\">\n<li>\u6307\u5b9a\u3055\u308c\u305f\u914d\u5217\u307e\u305f\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5404\u8981\u7d20\u306b\u5bfe\u3057\u3066\u3001\u9806\u756a\u306b\u51e6\u7406\u3092\u884c\u3046\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-17\">\n<li>\u5404\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u3001\u73fe\u5728\u306e\u8981\u7d20\u304c\u6307\u5b9a\u3055\u308c\u305f\u5909\u6570\u306b\u4ee3\u5165\u3055\u308c\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-18\">\n<li>\u30eb\u30fc\u30d7\u672c\u4f53\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-19\">\n<li>\u3059\u3079\u3066\u306e\u8981\u7d20\u304c\u51e6\u7406\u3055\u308c\u308b\u307e\u3067\u30012\u30683\u3092\u7e70\u308a\u8fd4\u3059\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-20\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u7279\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">foreach \u30eb\u30fc\u30d7\u306e\u6709\u7528\u306a\u5834\u9762<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-21\">\n<li>\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5168\u8981\u7d20\u306b\u5bfe\u3057\u3066\u540c\u3058\u51e6\u7406\u3092\u884c\u3046\u5834\u5408<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u4e0d\u8981\u306a\u5834\u5408<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-23\">\n<li>\u8981\u7d20\u306e\u9806\u5e8f\u304c\u91cd\u8981\u3067\u306a\u3044\u5834\u5408<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-24\">\n<p>\u305f\u3060\u3057\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#ffffff\" class=\"sgb-box-simple__title\">\u4f7f\u7528\u306e\u6ce8\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-25\">\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3067\u304d\u306a\u3044\u3002\uff08\u5fc5\u8981\u306a\u5834\u5408\u306f\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-26\">\n<li>\u30eb\u30fc\u30d7\u5185\u3067\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u5909\u66f4\u3059\u308b\u969b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-27\">\n<li>\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306e\u914d\u5217\u306b\u5bfe\u3057\u3066\u306f\u4f7f\u7528\u3067\u304d\u306a\u3044\u3002\uff08\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\uff09<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-28\">\n<p>\u6700\u5f8c\u306b\u3001\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30ea\u30b9\u30c8\u306e\u8981\u7d20\u30922\u500d\u306b\u3059\u308b\nList&lt;Integer&gt; numbers = Arrays.asList(1, 2, 3, 4, 5);\nfor (Integer number : numbers) {\n    System.out.println(number * 2);\n}\n\n\/\/ \u51fa\u529b:\n\/\/ 2\n\/\/ 4\n\/\/ 6\n\/\/ 8\n\/\/ 10<\/pre>\n\n\n<div id=\"sgb-css-id-29\">\n<p>\u3053\u306e\u3088\u3046\u306b\u3001foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">2. foreach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u4f8b\uff1a\u914d\u5217\u3068\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u64cd\u4f5c<\/h2>\n\n\n<div id=\"sgb-css-id-30\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u3001\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u7c21\u5358\u306b\u64cd\u4f5c\u3067\u304d\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u5bfe\u3059\u308bforeach\u30eb\u30fc\u30d7\u306e\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-31\">\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u914d\u5217\u306b\u5bfe\u3059\u308bforeach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-32\">\n<h4 class=\"wp-block-heading\" id=\"i-5\">\u4e00\u6b21\u5143\u914d\u5217<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-33\">\n<p>\u4e00\u6b21\u5143\u914d\u5217\u306b\u5bfe\u3059\u308bforeach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u6574\u6570\u914d\u5217\u306e\u5404\u8981\u7d20\u3092\u51fa\u529b\u3059\u308b\u4f8b\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int[] numbers = {1, 2, 3, 4, 5};\nfor (int num : numbers) {\n    System.out.println(num);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-34\">\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u914d\u5217<code>numbers<\/code>\u306e\u5404\u8981\u7d20\u3092\u9806\u756a\u306b\u5909\u6570<code>num<\/code>\u306b\u4ee3\u5165\u3057\u3001\u305d\u306e\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-35\">\n<h4 class=\"wp-block-heading\" id=\"i-6\">\u591a\u6b21\u5143\u914d\u5217<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<p>\u591a\u6b21\u5143\u914d\u5217\u306e\u5834\u5408\u3001\u30cd\u30b9\u30c8\u3057\u305fforeach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int[][] matrix = {{1, 2}, {3, 4}, {5, 6}};\nfor (int[] row : matrix) {\n    for (int num : row) {\n        System.out.print(num + \" \");\n    }\n    System.out.println();\n}<\/pre>\n\n\n<div id=\"sgb-css-id-37\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u5916\u5074\u306e\u30eb\u30fc\u30d7\u304c\u5404\u884c\uff08\u5185\u90e8\u914d\u5217\uff09\u3092\u51e6\u7406\u3057\u3001\u5185\u5074\u306e\u30eb\u30fc\u30d7\u304c\u5404\u884c\u306e\u8981\u7d20\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-38\">\n<h3 class=\"wp-block-heading\" id=\"i-7\">List\u3001Set\u3001Map\u306a\u3069\u5404\u7a2e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u306eforeach\u30eb\u30fc\u30d7\u306e\u6d3b\u7528<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-39\">\n<h4 class=\"wp-block-heading\" id=\"i-8\">List\uff08ArrayList, LinkedList\uff09<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-40\">\n<p>List\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\uff08ArrayList\u3084LinkedList\u306a\u3069\uff09\u306b\u5bfe\u3059\u308bforeach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;String&gt; fruits = Arrays.asList(\"Apple\", \"Banana\", \"Orange\");\nfor (String fruit : fruits) {\n    System.out.println(fruit);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-41\">\n<h4 class=\"wp-block-heading\" id=\"i-9\">Set\uff08HashSet, TreeSet\uff09<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-42\">\n<p>Set\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\uff08HashSet\u3084TreeSet\u306a\u3069\uff09\u3067\u306eforeach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Set&lt;Integer&gt; numbers = new HashSet&lt;&gt;(Arrays.asList(1, 2, 3, 4, 5));\nfor (Integer num : numbers) {\n    System.out.println(num);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-43\">\n<p><strong>\u6ce8\u610f<\/strong>\uff1a Set\u306f\u9806\u5e8f\u3092\u4fdd\u8a3c\u3057\u306a\u3044\u305f\u3081\u3001\u51fa\u529b\u9806\u5e8f\u304c\u4e0d\u5b9a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-44\">\n<h4 class=\"wp-block-heading\" id=\"i-10\">Map\uff08HashMap, TreeMap\uff09<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-45\">\n<p>Map\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\uff08HashMap\u3084TreeMap\u306a\u3069\uff09\u3067foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u901a\u5e38\u306fentrySet()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30a8\u30f3\u30c8\u30ea\u30fc\u306e\u30bb\u30c3\u30c8\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Map&lt;String, Integer&gt; ages = new HashMap&lt;&gt;();\nages.put(\"Alice\", 25);\nages.put(\"Bob\", 30);\nfor (Map.Entry&lt;String, Integer&gt; entry : ages.entrySet()) {\n    System.out.println(entry.getKey() + \" is \" + entry.getValue() + \" years old.\");\n}<\/pre>\n\n\n<div id=\"sgb-css-id-46\">\n<h3 class=\"wp-block-heading\" id=\"i-11\">foreach\u30eb\u30fc\u30d7\u4f7f\u7528\u6642\u306e\u7559\u610f\u70b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--sgb-main-color);color:#ffffff\" class=\"sgb-box-simple__title\">foreach\u30eb\u30fc\u30d7\u4f7f\u7528\u6642\u306e\u7559\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--sgb-main-color);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-47\">\n<li><strong>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u5185\u306e\u8981\u7d20\u306e\u5909\u66f4<\/strong>\uff1a foreach\u30eb\u30fc\u30d7\u5185\u3067\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\u3001ConcurrentModificationException\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u64cd\u4f5c\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u30a4\u30c6\u30ec\u30fc\u30bf\u3084\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-48\">\n<li><strong>\u9069\u5207\u306a\u5909\u6570\u540d\u306e\u4f7f\u7528<\/strong>\uff1a \u30eb\u30fc\u30d7\u5909\u6570\u306b\u306f\u610f\u5473\u306e\u3042\u308b\u540d\u524d\u3092\u4ed8\u3051\u3066\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-49\">\n<li><strong>Null\u5024\u306e\u51e6\u7406<\/strong>\uff1a foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u524d\u306b\u3001\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u304cnull\u3067\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-50\">\n<li><strong>\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306e\u6d3b\u7528<\/strong>\uff1a \u4e0d\u8981\u306a\u578b\u30ad\u30e3\u30b9\u30c8\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3092\u9069\u5207\u306b\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-51\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u8003\u616e<\/strong>\uff1a \u5927\u898f\u6a21\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5834\u5408\u3001foreach\u30eb\u30fc\u30d7\u306f\u5185\u90e8\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3088\u308a\u3082\u308f\u305a\u304b\u306b\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5927\u304d\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u884c\u3044\u3001\u6700\u9069\u306a\u30eb\u30fc\u30d7\u65b9\u6cd5\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/div>\n\n\n<li><strong>\u30b7\u30f3\u30d7\u30eb\u3055\u306e\u7dad\u6301<\/strong>\uff1a foreach\u30eb\u30fc\u30d7\u306e\u4e3b\u306a\u5229\u70b9\u306f\u3001\u30b3\u30fc\u30c9\u306e\u7c21\u6f54\u3055\u3067\u3059\u3002\u8907\u96d1\u306a\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-53\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u3001\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u3092\u7c21\u5358\u306b\u64cd\u4f5c\u3067\u304d\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-54\">\n<h2 class=\"wp-block-heading\" id=\"i-12\">3. foreach\u30eb\u30fc\u30d7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff1a\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u7279\u6027\u3068\u6ce8\u610f\u70b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-55\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u8aad\u307f\u3084\u3059\u304f\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u89b3\u70b9\u304b\u3089\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u306e\u6027\u80fd\u7279\u6027\u3068\u3001\u4f7f\u7528\u6642\u306b\u6ce8\u610f\u3059\u3079\u304d\u70b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-56\">\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u306e\u901f\u5ea6\u6bd4\u8f03<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-57\">\n<p>foreach\u30eb\u30fc\u30d7\u3068\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3001\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3088\u3063\u3066\u82e5\u5e72\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">for \u30eb\u30fc\u30d7\u3068\u306e\u901f\u5ea6\u306e\u9055\u3044<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-58\">\n<li><strong>\u914d\u5217<\/strong>\uff1a\u914d\u5217\u306e\u5834\u5408\u3001foreach\u30eb\u30fc\u30d7\u3068\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u306e\u901f\u5ea6\u306f\u307b\u307c\u540c\u3058\u3067\u3059\u3002\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u4e21\u8005\u306e\u5dee\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-59\">\n<li><strong>ArrayList<\/strong>\uff1aArrayList\u306e\u5834\u5408\u3001foreach\u30eb\u30fc\u30d7\u306f\u5185\u90e8\u7684\u306b\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3088\u308a\u3082\u308f\u305a\u304b\u306b\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u305d\u306e\u5dee\u306f\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u7121\u8996\u3067\u304d\u308b\u30ec\u30d9\u30eb\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-60\">\n<li><strong>LinkedList<\/strong>\uff1aLinkedList\u306e\u5834\u5408\u3001foreach\u30eb\u30fc\u30d7\u306f\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3088\u308a\u3082\u9ad8\u901f\u306b\u306a\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001foreach\u30eb\u30fc\u30d7\u304c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\uff08O(n)\u306e\u64cd\u4f5c\uff09\u3092\u56de\u907f\u3057\u3001\u76f4\u63a5\u8981\u7d20\u3092\u30a4\u30c6\u30ec\u30fc\u30c8\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ foreach\u30eb\u30fc\u30d7\nfor (Integer num : linkedList) {\n    \/\/ \u51e6\u7406\n}\n\n\/\/ \u5f93\u6765\u306efor\u30eb\u30fc\u30d7\uff08LinkedList\u3067\u306f\u975e\u52b9\u7387\uff09\nfor (int i = 0; i &lt; linkedList.size(); i++) {\n    Integer num = linkedList.get(i);\n    \/\/ \u51e6\u7406\n}<\/pre>\n\n\n\n<p>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u304c\u308f\u305a\u304b\u306b\u512a\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u793a\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5dee\u306f\u901a\u5e38\u7121\u8996\u3067\u304d\u308b\u30ec\u30d9\u30eb\u3067\u3059\u3002<\/p>\n\n\n<div id=\"sgb-css-id-62\">\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3078\u306e\u5f71\u97ff<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-63\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u3001\u5404\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u4e00\u6642\u7684\u306a\u5909\u6570\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3068\u6bd4\u3079\u3066\u308f\u305a\u304b\u306b\u591a\u304f\u306e\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u3089\u306e\u5909\u6570\u306f\u901a\u5e38\u30b9\u30bf\u30c3\u30af\u4e0a\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u305f\u3081\u3001\u305d\u306e\u5f71\u97ff\u306f\u6700\u5c0f\u9650\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-64\">\n<p>\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u95a2\u3057\u3066\u306f\u3001foreach\u30eb\u30fc\u30d7\u81ea\u4f53\u304c\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u30eb\u30fc\u30d7\u5185\u3067\u5927\u91cf\u306e\u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u3001\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u983b\u5ea6\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u907f\u3051\u308b\u3079\u304d\u4f8b\nfor (String str : largeStringList) {\n    new BigObject(str); \/\/ \u5404\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\n}<\/pre>\n\n\n<div id=\"sgb-css-id-65\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5bfe\u7b56<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-66\">\n<li><strong>\u5927\u898f\u6a21\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u51e6\u7406<\/strong>\uff1a\u975e\u5e38\u306b\u5927\u304d\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u306f\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-67\">\n<li><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\u306e\u6700\u5c0f\u5316<\/strong>\uff1a\u30eb\u30fc\u30d7\u5185\u3067\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u3067\u3001\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8ca0\u8377\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-68\">\n<li><strong>\u30dc\u30af\u30b7\u30f3\u30b0\/\u30a2\u30f3\u30dc\u30af\u30b7\u30f3\u30b0\u306e\u56de\u907f<\/strong>\uff1a\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3092\u6271\u3046\u5834\u5408\u3001\u4e0d\u8981\u306a\u30dc\u30af\u30b7\u30f3\u30b0\/\u30a2\u30f3\u30dc\u30af\u30b7\u30f3\u30b0\u3092\u907f\u3051\u308b\u3053\u3068\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3089\u308c\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-69\">\n<li><strong>\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306e\u5b9f\u65bd<\/strong>\uff1a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8981\u306a\u90e8\u5206\u3067\u306f\u3001JMH\uff08Java Microbenchmark Harness\uff09\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u5b9f\u969b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Benchmark\npublic void testForEachLoop(Blackhole bh) {\n    for (Integer num : numbers) {\n        bh.consume(num);\n    }\n}\n\n@Benchmark\npublic void testTraditionalForLoop(Blackhole bh) {\n    for (int i = 0; i &lt; numbers.size(); i++) {\n        bh.consume(numbers.get(i));\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-70\">\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001foreach\u30eb\u30fc\u30d7\u306f\u591a\u304f\u306e\u5834\u5408\u3067\u5341\u5206\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3082\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u6975\u7aef\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u8981\u6c42\u3055\u308c\u308b\u72b6\u6cc1\u3067\u306f\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3084\u30b9\u30c8\u30ea\u30fc\u30e0API\u306a\u3069\u3001\u4ed6\u306e\u9078\u629e\u80a2\u3082\u691c\u8a0e\u3059\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u306e\u5236\u9650\u4e8b\u9805\u3068\u305d\u306e\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-71\">\n<h2 class=\"wp-block-heading\" id=\"i-16\">4. foreach\u30eb\u30fc\u30d7\u306e\u5236\u9650\u4e8b\u9805\u3068\u56de\u907f\u7b56<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-72\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u4f7f\u3044\u3084\u3059\u304f\u8aad\u307f\u3084\u3059\u3044\u69cb\u6587\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u5236\u9650\u4e8b\u9805\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4e3b\u306a\u5236\u9650\u4e8b\u9805\u3068\u305d\u306e\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-73\">\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3067\u304d\u306a\u3044\u554f\u984c\u3068\u305d\u306e\u5bfe\u51e6\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-74\">\n<p>foreach\u30eb\u30fc\u30d7\u306e\u4e3b\u306a\u5236\u9650\u306e1\u3064\u306f\u3001\u30eb\u30fc\u30d7\u5185\u3067\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u76f4\u63a5\u6271\u3048\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u8981\u7d20\u306e\u4f4d\u7f6e\u306b\u57fa\u3065\u3044\u305f\u64cd\u4f5c\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u554f\u984c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-75\">\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u5bfe\u51e6\u6cd5\uff1a<\/h4>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-76\">\n<li><strong>\u30ab\u30a6\u30f3\u30bf\u30fc\u5909\u6570\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   int index = 0;\n   for (Element e : list) {\n       System.out.println(\"Index: \" + index + \", Value: \" + e);\n       index++;\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-77\">\n<li><strong>IntStream\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   IntStream.range(0, list.size()).forEach(i -&gt; {\n       Element e = list.get(i);\n       System.out.println(\"Index: \" + i + \", Value: \" + e);\n   });<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-78\">\n<li><strong>\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3078\u306e\u5207\u308a\u66ff\u3048<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   for (int i = 0; i &lt; list.size(); i++) {\n       Element e = list.get(i);\n       System.out.println(\"Index: \" + i + \", Value: \" + e);\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-79\">\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30eb\u30fc\u30d7\u5185\u3067\u306e\u8981\u7d20\u306e\u524a\u9664\u30fb\u5909\u66f4\u6642\u306e\u6ce8\u610f\u70b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-80\">\n<h4 class=\"wp-block-heading\" id=\"i-20\">\u8981\u7d20\u306e\u524a\u9664<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-81\">\n<p>foreach\u30eb\u30fc\u30d7\u4e2d\u306b\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u304b\u3089\u8981\u7d20\u3092\u76f4\u63a5\u524a\u9664\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001<code>ConcurrentModificationException<\/code>\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-82\">\n<h4 class=\"wp-block-heading\" id=\"i-21\">\u5bfe\u51e6\u6cd5\uff1a<\/h4>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-83\">\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   Iterator&lt;Element&gt; iter = list.iterator();\n   while (iter.hasNext()) {\n       Element e = iter.next();\n       if (shouldRemove(e)) {\n           iter.remove();\n       }\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-84\">\n<li><strong>removeIf()\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528<\/strong>\uff08Java 8\u4ee5\u964d\uff09<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   list.removeIf(e -&gt; shouldRemove(e));<\/pre>\n\n\n<div id=\"sgb-css-id-85\">\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\">\n<li><strong>\u65b0\u3057\u3044\u30ea\u30b9\u30c8\u306e\u4f5c\u6210<\/strong><\/li>\n<\/ol>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   List&lt;Element&gt; newList = list.stream()\n       .filter(e -&gt; !shouldRemove(e))\n       .collect(Collectors.toList());<\/pre>\n\n\n<div id=\"sgb-css-id-86\">\n<h4 class=\"wp-block-heading\" id=\"i-22\">\u8981\u7d20\u306e\u5909\u66f4<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-87\">\n<p>\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3084\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u3001\u30eb\u30fc\u30d7\u5909\u6570\u3092\u901a\u3058\u3066\u8981\u7d20\u3092\u76f4\u63a5\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<h4 class=\"wp-block-heading\" id=\"i-23\">\u5bfe\u51e6\u6cd5\uff1a<\/h4>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-89\">\n<li><strong>\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   class MutableInteger {\n       int value;\n       \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3001\u30b2\u30c3\u30bf\u30fc\u3001\u30bb\u30c3\u30bf\u30fc\n   }\n\n   List&lt;MutableInteger&gt; list = \/\/ \u521d\u671f\u5316\n   for (MutableInteger mi : list) {\n       mi.setValue(mi.getValue() * 2);\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-90\">\n<li><strong>\u914d\u5217\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   int[] array = \/\/ \u521d\u671f\u5316\n   for (int i = 0; i &lt; array.length; i++) {\n       array[i] *= 2;\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-91\">\n<li><strong>\u30bb\u30c3\u30bf\u30fc\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   for (MyObject obj : list) {\n       obj.setValue(obj.getValue() * 2);\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-92\">\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u4ee3\u66ff\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-93\">\n<p>foreach\u30eb\u30fc\u30d7\u306e\u5236\u9650\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u4ee3\u66ff\u30a2\u30d7\u30ed\u30fc\u30c1\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-94\">\n<li><strong>Stream API\u306e\u4f7f\u7528<\/strong>\uff08Java 8\u4ee5\u964d\uff09<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   list.stream()\n       .filter(e -&gt; someCondition(e))\n       .forEach(e -&gt; doSomething(e));<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-95\">\n<li><strong>\u62e1\u5f35for\u6587\u3068\u901a\u5e38for\u6587\u306e\u4f75\u7528<\/strong><\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   for (int i = 0; i &lt; list.size(); i++) {\n       Element e = list.get(i);\n       \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u8981\u7d20\u306e\u4e21\u65b9\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-96\">\n<p>\u3053\u308c\u3089\u306e\u5236\u9650\u4e8b\u9805\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u5bfe\u51e6\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001foreach\u30eb\u30fc\u30d7\u306e\u5229\u70b9\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3057\u3064\u3064\u3001\u67d4\u8edf\u6027\u306e\u3042\u308b\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001Java 8\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305fforeach\u30eb\u30fc\u30d7\u3068\u30e9\u30e0\u30c0\u5f0f\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-97\">\n<h2 class=\"wp-block-heading\" id=\"i-25\">5. Java 8\u4ee5\u964d\u306eforeach\u30eb\u30fc\u30d7\uff1a\u30e9\u30e0\u30c0\u5f0f\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-98\">\n<p>Java 8\u306e\u5c0e\u5165\u306b\u3088\u308a\u3001foreach\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\u65b9\u6cd5\u304c\u5927\u304d\u304f\u62e1\u5f35\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u7bc0\u3067\u306f\u3001\u65b0\u3057\u304f\u5c0e\u5165\u3055\u308c\u305fforEach()\u30e1\u30bd\u30c3\u30c9\u3001\u30e9\u30e0\u30c0\u5f0f\u3001\u305d\u3057\u3066Stream API\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u7406\u89e3\u3057\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7c21\u6f54\u3067\u67d4\u8edf\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-99\">\n<h3 class=\"wp-block-heading\" id=\"i-26\">forEach()\u30e1\u30bd\u30c3\u30c9\u3068\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3063\u305f\u65b0\u3057\u3044\u53cd\u5fa9\u51e6\u7406<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-100\">\n<p>Java 8\u3067\u306f\u3001Iterable\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306bforEach()\u3068\u3044\u3046\u30c7\u30d5\u30a9\u30eb\u30c8\u30e1\u30bd\u30c3\u30c9\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u975e\u5e38\u306b\u7c21\u6f54\u306a\u53cd\u5fa9\u51e6\u7406\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-101\">\n<h4 class=\"wp-block-heading\" id=\"i-27\">forEach()\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">default void forEach(Consumer&lt;? super T&gt; action)<\/pre>\n\n\n<div id=\"sgb-css-id-102\">\n<p>\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001Consumer\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08\u95a2\u6570\u578b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff09\u3092\u5f15\u6570\u306b\u53d6\u308a\u307e\u3059\u3002\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3001\u5404\u8981\u7d20\u306b\u5bfe\u3059\u308b\u51e6\u7406\u3092\u7c21\u6f54\u306b\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-103\">\n<h4 class=\"wp-block-heading\" id=\"i-28\">\u4f8b\uff1a\u30ea\u30b9\u30c8\u306e\u5404\u8981\u7d20\u3092\u51fa\u529b<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;String&gt; fruits = Arrays.asList(\"Apple\", \"Banana\", \"Orange\");\n\n\/\/ \u5f93\u6765\u306eforeach\u30eb\u30fc\u30d7\nfor (String fruit : fruits) {\n    System.out.println(fruit);\n}\n\n\/\/ forEach()\u30e1\u30bd\u30c3\u30c9\u3068\u30e9\u30e0\u30c0\u5f0f\nfruits.forEach(fruit -&gt; System.out.println(fruit));\n\n\/\/ \u30e1\u30bd\u30c3\u30c9\u53c2\u7167\u3092\u4f7f\u7528\u3059\u308b\u3068\u3055\u3089\u306b\u7c21\u6f54\u306b\nfruits.forEach(System.out::println);<\/pre>\n\n\n<div id=\"sgb-css-id-104\">\n<h4 class=\"wp-block-heading\" id=\"i-29\">\u4f8b\uff1a\u30de\u30c3\u30d7\u306e\u5404\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u51e6\u7406<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Map&lt;String, Integer&gt; ages = new HashMap&lt;&gt;();\nages.put(\"Alice\", 25);\nages.put(\"Bob\", 30);\n\nages.forEach((name, age) -&gt; System.out.println(name + \" is \" + age + \" years old\"));<\/pre>\n\n\n<div id=\"sgb-css-id-105\">\n<h3 class=\"wp-block-heading\" id=\"i-30\">Stream API\u3068foreach\u30eb\u30fc\u30d7\u306e\u76f8\u4e92\u904b\u7528\u6027<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-106\">\n<p>Stream API\u306f\u3001\u8981\u7d20\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u6271\u3046\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u30bb\u30c3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306eAPI\u306f\u3001foreach\u30eb\u30fc\u30d7\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u304a\u308a\u3001\u591a\u304f\u306e\u5834\u9762\u3067foreach\u30eb\u30fc\u30d7\u306e\u4ee3\u66ff\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-107\">\n<h4 class=\"wp-block-heading\" id=\"i-31\">Stream API\u306e\u57fa\u672c<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-108\">\n<p>Stream API\u306f\u4ee5\u4e0b\u306e\u7279\u5fb4\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-112\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">Stream API\u306e\u7279\u5fb4<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-109\">\n<li>\u9045\u5ef6\u8a55\u4fa1\uff1a\u5fc5\u8981\u306b\u306a\u308b\u307e\u3067\u51e6\u7406\u3092\u9045\u3089\u305b\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-110\">\n<li>\u4e26\u5217\u51e6\u7406\u306e\u30b5\u30dd\u30fc\u30c8\uff1a\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u3092\u5bb9\u6613\u306b\u4e26\u5217\u5316<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-111\">\n<li>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u51e6\u7406\uff1a\u8907\u6570\u306e\u64cd\u4f5c\u3092\u9023\u9396\u3055\u305b\u3066\u5b9f\u884c\u53ef\u80fd<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-113\">\n<h4 class=\"wp-block-heading\" id=\"i-32\">\u4f8b\uff1a\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u5909\u63db<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;String&gt; names = Arrays.asList(\"Alice\", \"Bob\", \"Charlie\", \"David\");\n\nnames.stream()\n    .filter(name -&gt; name.length() &gt; 4)\n    .map(String::toUpperCase)\n    .forEach(System.out::println);<\/pre>\n\n\n<div id=\"sgb-css-id-114\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u30014\u6587\u5b57\u3088\u308a\u9577\u3044\u540d\u524d\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3001\u5927\u6587\u5b57\u306b\u5909\u63db\u3057\u3066\u304b\u3089\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-115\">\n<h4 class=\"wp-block-heading\" id=\"i-33\">\u4e26\u5217\u51e6\u7406\u306e\u4f8b<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">List&lt;Integer&gt; numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);\n\nnumbers.parallelStream()\n    .filter(n -&gt; n % 2 == 0)\n    .forEach(n -&gt; System.out.println(n + \" \" + Thread.currentThread().getName()));<\/pre>\n\n\n<div id=\"sgb-css-id-116\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u5076\u6570\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4e26\u5217\u306b\u51e6\u7406\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<h3 class=\"wp-block-heading\" id=\"i-34\">\u4f7f\u3044\u5206\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h3>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4f7f\u3044\u5206\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-118\">\n<li><strong>\u5358\u7d14\u306a\u53cd\u5fa9\u51e6\u7406<\/strong>\uff1a\u5f93\u6765\u306eforeach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-119\">\n<li><strong>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5909\u66f4\u3092\u4f34\u3046\u51e6\u7406<\/strong>\uff1aforEach()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528<\/li>\n<\/div>\n\n\n<li><strong>\u8907\u96d1\u306a\u51e6\u7406\u3084\u4e26\u5217\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408<\/strong>\uff1aStream API\u3092\u4f7f\u7528<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-120\">\n<h3 class=\"wp-block-heading\" id=\"i-35\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u306e\u8003\u616e\u4e8b\u9805<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-124\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-121\">\n<li>\u5c0f\u898f\u6a21\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5f93\u6765\u306eforeach\u30eb\u30fc\u30d7\u304c\u6700\u3082\u9ad8\u901f\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-122\">\n<li>\u5927\u898f\u6a21\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3084\u4e26\u5217\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001Stream API\u304c\u6709\u5229\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-123\">\n<li>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u91cd\u8996\u3059\u308b\u5834\u5408\u3001\u76ee\u7684\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-125\">\n<p>Java 8\u4ee5\u964d\u306eforeach\u30eb\u30fc\u30d7\u3001\u30e9\u30e0\u30c0\u5f0f\u3001\u305d\u3057\u3066Stream API\u306f\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u3067\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u52b9\u7387\u7684\u306aJava\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-126\">\n<h2 class=\"wp-block-heading\" id=\"i-36\">6. foreach\u30eb\u30fc\u30d7\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-127\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u304c\u3001\u9069\u5207\u306b\u4f7f\u7528\u3057\u306a\u3044\u3068\u9006\u52b9\u679c\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-128\">\n<h3 class=\"wp-block-heading\" id=\"i-37\">\u9069\u5207\u306a\u5909\u6570\u540d\u3068\u30b3\u30e1\u30f3\u30c8\u306e\u4f7f\u7528\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-129\">\n<p>\u9069\u5207\u306a\u5909\u6570\u540d\u3092\u9078\u3076\u3053\u3068\u306f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u5909\u6570\u540d\u306e\u9078\u3073\u65b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-130\">\n<li>\u63cf\u5199\u7684\u3067\u5177\u4f53\u7684\u306a\u540d\u524d\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-131\">\n<li>\u5358\u6570\u5f62\u307e\u305f\u306f\u8907\u6570\u5f62\u3092\u9069\u5207\u306b\u4f7f\u3044\u5206\u3051\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-132\">\n<li>\u4e00\u822c\u7684\u306a\u7565\u8a9e\u3092\u9664\u304d\u3001\u7701\u7565\u3092\u907f\u3051\u308b<\/li>\n<\/div>\n\n\n<li>\u30eb\u30fc\u30d7\u306e\u76ee\u7684\u3084\u51e6\u7406\u5185\u5bb9\u3092\u53cd\u6620\u3055\u305b\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-133\">\n<p>\u5909\u6570\u540d\u306e\u547d\u540d\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\nfor (String s : list) { ... }\n\n\/\/ \u826f\u3044\u4f8b\nfor (String customer : customerList) { ... }<\/pre>\n\n\n<div id=\"sgb-css-id-134\">\n<p>\u30b3\u30e1\u30f3\u30c8\u306f\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u304c\u3001\u904e\u5270\u306a\u30b3\u30e1\u30f3\u30c8\u306f\u304b\u3048\u3063\u3066\u53ef\u8aad\u6027\u3092\u4e0b\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30b3\u30e1\u30f3\u30c8\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-135\">\n<li>\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u306e\u8aac\u660e<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-136\">\n<li>\u975e\u81ea\u660e\u306a\u6c7a\u5b9a\u306e\u7406\u7531\u306e\u8a18\u8ff0<\/li>\n<\/div>\n\n\n<li>\u30e1\u30bd\u30c3\u30c9\u3084\u5909\u6570\u306e\u76ee\u7684\u306e\u8aac\u660e<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-137\">\n<p>\u4ee5\u4e0b\u306e\u70b9\u306b\u306f\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-140\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u30b3\u30e1\u30f3\u30c8\u306e\u6ce8\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-138\">\n<li>\u81ea\u660e\u306a\u3053\u3068\u306b\u30b3\u30e1\u30f3\u30c8\u3092\u4ed8\u3051\u306a\u3044<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-139\">\n<li>\u30b3\u30fc\u30c9\u306e\u4ee3\u308f\u308a\u306b\u30b3\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u306a\u3044<\/li>\n<\/div>\n\n\n<li>\u30b3\u30e1\u30f3\u30c8\u306f\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-141\">\n<h3 class=\"wp-block-heading\" id=\"i-38\">\u30cd\u30b9\u30c8\u3055\u308c\u305fforeach\u30eb\u30fc\u30d7\u306e\u6271\u3044\u65b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-142\">\n<p>\u30cd\u30b9\u30c8\u3055\u308c\u305fforeach\u30eb\u30fc\u30d7\u306f\u3001\u30b3\u30fc\u30c9\u306e\u8907\u96d1\u6027\u3092\u5897\u3057\u3001\u53ef\u8aad\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067\u30cd\u30b9\u30c8\u3092\u56de\u907f\u307e\u305f\u306f\u6539\u5584\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-143\">\n<ol class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u30b9\u30c8\u30ea\u30fc\u30e0API\u3068\u30e9\u30e0\u30c0\u5f0f\u306e\u4f7f\u7528<\/li>\n<\/ol>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   list1.stream()\n        .flatMap(item1 -&gt; list2.stream().map(item2 -&gt; processItems(item1, item2)))\n        .forEach(System.out::println);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-144\">\n<li>\u5185\u90e8\u30eb\u30fc\u30d7\u3092\u5225\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   for (OuterType outer : outerList) {\n       processInnerList(outer.getInnerList());\n   }\n\n   private void processInnerList(List&lt;InnerType&gt; innerList) {\n       for (InnerType inner : innerList) {\n           \/\/ \u51e6\u7406\n       }\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-145\">\n<li>\u8907\u5408\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f7f\u7528\u306b\u3088\u308b\u30cd\u30b9\u30c8\u306e\u56de\u907f<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   List&lt;Pair&lt;OuterType, InnerType&gt;&gt; combinedList = combine(outerList, innerList);\n   for (Pair&lt;OuterType, InnerType&gt; pair : combinedList) {\n       \/\/ \u51e6\u7406\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-146\">\n<h3 class=\"wp-block-heading\" id=\"i-39\">\u4e00\u822c\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">foreach \u306e\u7559\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-147\">\n<li>\u30eb\u30fc\u30d7\u5185\u3067\u91cd\u3044\u51e6\u7406\u3092\u907f\u3051\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-148\">\n<li>\u5fc5\u8981\u4ee5\u4e0a\u306b\u9577\u3044\u30eb\u30fc\u30d7\u3092\u907f\u3051\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-149\">\n<li>\u30eb\u30fc\u30d7\u5185\u3067\u306e\u4f8b\u5916\u51e6\u7406\u306b\u6ce8\u610f\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-150\">\n<li>\u30eb\u30fc\u30d7\u5909\u6570\u306e\u30b9\u30b3\u30fc\u30d7\u3092\u6700\u5c0f\u9650\u306b\u4fdd\u3064<\/li>\n<\/div>\n\n\n<li>\u53ef\u80fd\u306a\u9650\u308a\u3001\u62e1\u5f35for\u6587\uff08foreach\uff09\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-151\">\n<p>\u5bfe\u5fdc\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6539\u5584\u524d\nfor (String item : itemList) {\n    try {\n        heavyProcessing(item);\n        if (someCondition(item)) {\n            break;\n        }\n    } catch (Exception e) {\n        e.printStackTrace();\n    }\n}\n\n\/\/ \u6539\u5584\u5f8c\nfor (String item : itemList) {\n    if (!isValidForProcessing(item)) {\n        continue;\n    }\n    processItem(item);\n    if (shouldStopProcessing(item)) {\n        break;\n    }\n}\n\nprivate void processItem(String item) {\n    try {\n        heavyProcessing(item);\n    } catch (Exception e) {\n        logger.error(\"Error processing item: \" + item, e);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-152\">\n<h3 class=\"wp-block-heading\" id=\"i-40\">\u3088\u308a\u826f\u304f\u3059\u308b\u3059\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-155\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u3088\u308a\u826f\u304f\u3059\u308b\u3059\u308b\u305f\u3081\u306e\u30d2\u30f3\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-153\">\n<li>\u30a4\u30f3\u30c7\u30f3\u30c8\u3068\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u4e00\u8cab\u3055\u305b\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-154\">\n<li>\u8907\u96d1\u306a\u30eb\u30fc\u30d7\u306f\u8aac\u660e\u5909\u6570\u3084\u8aac\u660e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u7c21\u7565\u5316\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u30eb\u30fc\u30d7\u306e\u524d\u5f8c\u3067\u4e8b\u524d\u6761\u4ef6\u3068\u4e8b\u5f8c\u6761\u4ef6\u3092\u660e\u78ba\u306b\u3059\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-156\">\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001foreach\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001foreach\u30eb\u30fc\u30d7\u306e\u4ee3\u66ff\u624b\u6bb5\u306b\u3064\u3044\u3066\u63a2\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-157\">\n<h2 class=\"wp-block-heading\" id=\"i-41\">7. foreach\u30eb\u30fc\u30d7\u306e\u4ee3\u66ff\u624b\u6bb5\uff1a\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9078\u629e\u80a2<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-158\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u591a\u304f\u306e\u5834\u9762\u3067\u6709\u7528\u3067\u3059\u304c\u3001\u72b6\u6cc1\u306b\u3088\u3063\u3066\u306f\u3088\u308a\u9069\u5207\u306a\u4ee3\u66ff\u624b\u6bb5\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4e3b\u306a\u4ee3\u66ff\u624b\u6bb5\u3067\u3042\u308bStream API\u3068\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u4f7f\u7528\u30b7\u30fc\u30f3\u3092\u63a2\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-159\">\n<h3 class=\"wp-block-heading\" id=\"i-42\">Java 8\u306eStream API\u3092\u4f7f\u7528\u3057\u305f\u7e70\u308a\u8fd4\u3057\u51e6\u7406<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-160\">\n<p>Stream API\u306f\u3001\u8981\u7d20\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u6271\u3046\u305f\u3081\u306e\u5ba3\u8a00\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3092\u69cb\u7bc9\u3057\u3001\u8907\u96d1\u306a\u64cd\u4f5c\u3092\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-161\">\n<h4 class=\"wp-block-heading\" id=\"i-43\">\u4e3b\u8981\u306a\u64cd\u4f5c<\/h4>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-162\">\n<li><strong>map<\/strong>\uff1a \u5404\u8981\u7d20\u3092\u5909\u63db\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   List&lt;String&gt; upperCaseNames = names.stream()\n                                      .map(String::toUpperCase)\n                                      .collect(Collectors.toList());<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-163\">\n<li><strong>filter<\/strong>\uff1a \u6761\u4ef6\u306b\u5408\u3046\u8981\u7d20\u306e\u307f\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   List&lt;Integer&gt; evenNumbers = numbers.stream()\n                                      .filter(n -&gt; n % 2 == 0)\n                                      .collect(Collectors.toList());<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-164\">\n<li><strong>reduce<\/strong>\uff1a \u8981\u7d20\u3092\u96c6\u7d04\u3057\u3066\u5358\u4e00\u306e\u7d50\u679c\u3092\u5f97\u307e\u3059\u3002<\/li>\n<\/div><\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   int sum = numbers.stream()\n                    .reduce(0, Integer::sum);<\/pre>\n\n\n<div id=\"sgb-css-id-165\">\n<h4 class=\"wp-block-heading\" id=\"i-44\">Stream API\u306e\u9577\u6240\u3068\u77ed\u6240<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-168\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u9577\u6240\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-166\">\n<li>\u5ba3\u8a00\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-167\">\n<li>\u4e26\u5217\u51e6\u7406\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/div>\n\n\n<li>\u4e2d\u9593\u64cd\u4f5c\u306e\u9045\u5ef6\u8a55\u4fa1<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-171\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#f88080;color:#FFF\" class=\"sgb-box-simple__title\">\u77ed\u6240\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#f88080;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-169\">\n<li>\u5b66\u7fd2\u66f2\u7dda\u304c\u9ad8\u3044<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-170\">\n<li>\u5358\u7d14\u306a\u64cd\u4f5c\u3067\u306f\u5197\u9577\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/div>\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u304c\u96e3\u3057\u3044\u5834\u5408\u304c\u3042\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-172\">\n<h3 class=\"wp-block-heading\" id=\"i-45\">\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-173\">\n<p>\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5185\u90e8\u69cb\u9020\u3092\u516c\u958b\u305b\u305a\u306b\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u65b9\u6cd5\u3092\u63d0\u4f9b\u3059\u308b\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-174\">\n<h4 class=\"wp-block-heading\" id=\"i-46\">\u5b9f\u88c5\u4f8b<\/h4>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class MyCollection implements Iterable&lt;String&gt; {\n    private String[] elements;\n\n    public Iterator&lt;String&gt; iterator() {\n        return new MyIterator();\n    }\n\n    private class MyIterator implements Iterator&lt;String&gt; {\n        private int index = 0;\n\n        public boolean hasNext() {\n            return index &lt; elements.length;\n        }\n\n        public String next() {\n            return elements[index++];\n        }\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nMyCollection collection = new MyCollection();\nfor (String element : collection) {\n    System.out.println(element);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-175\">\n<h4 class=\"wp-block-heading\" id=\"i-47\">\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u306e\u9577\u6240\u3068\u77ed\u6240<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-178\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u9577\u6240\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-176\">\n<li>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5185\u90e8\u69cb\u9020\u3092\u96a0\u853d\u3067\u304d\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-177\">\n<li>\u7570\u306a\u308b\u8d70\u67fb\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u308b<\/li>\n<\/div>\n\n\n<li>\u5358\u65b9\u5411\u306e\u8d70\u67fb\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-180\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#f88080;color:#FFF\" class=\"sgb-box-simple__title\">\u77ed\u6240\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#f88080;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-179\">\n<li>\u5b9f\u88c5\u304c\u8907\u96d1\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/div>\n\n\n<li>\u72b6\u614b\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u3001\u4e26\u5217\u51e6\u7406\u304c\u96e3\u3057\u3044<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-181\">\n<h3 class=\"wp-block-heading\" id=\"i-48\">\u4f7f\u3044\u5206\u3051\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-184\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4ee3\u66ff\u624b\u6bb5\u306e\u4f7f\u3044\u5206\u3051<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-182\">\n<li><strong>foreach\u30eb\u30fc\u30d7<\/strong>\uff1a \u5358\u7d14\u306a\u53cd\u5fa9\u51e6\u7406\u306b\u4f7f\u7528<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-183\">\n<li><strong>Stream API<\/strong>\uff1a \u8907\u96d1\u306a\u5909\u63db\u3084\u96c6\u7d04\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528<\/li>\n<\/div>\n\n\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3<\/strong>\uff1a \u30ab\u30b9\u30bf\u30e0\u306a\u8d70\u67fb\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-185\">\n<h3 class=\"wp-block-heading\" id=\"i-49\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u306e\u8003\u616e\u4e8b\u9805<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-189\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-186\">\n<li>\u5c0f\u898f\u6a21\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5f93\u6765\u306eforeach\u30eb\u30fc\u30d7\u304c\u6700\u3082\u9ad8\u901f\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-187\">\n<li>\u5927\u898f\u6a21\u306a\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3084\u4e26\u5217\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001Stream API\u304c\u6709\u5229\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-188\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u610f\u56f3\u306e\u660e\u78ba\u3055\u3092\u91cd\u8996\u3059\u308b\u5834\u5408\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-190\">\n<p>foreach\u30eb\u30fc\u30d7\u3001Stream API\u3001\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u306f\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7279\u6027\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u9069\u5207\u306b\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u3067\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u307e\u3067\u306e\u5185\u5bb9\u3092\u8e0f\u307e\u3048\u3066\u3001Java foreach\u30eb\u30fc\u30d7\u306e\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053\u7b4b\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-191\">\n<h2 class=\"wp-block-heading\" id=\"i-50\">8. \u307e\u3068\u3081\uff1aJava foreach\u30eb\u30fc\u30d7\u306e\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-192\">\n<p>foreach\u30eb\u30fc\u30d7\u306f\u3001Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u914d\u5217\u3084\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u901a\u3058\u3066\u3001foreach\u30eb\u30fc\u30d7\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u5e45\u5e83\u304f\u5b66\u3093\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306f\u3001\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u308a\u3001\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9\u3068\u5b9f\u8df5\u7684\u306a\u8ab2\u984c\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-193\">\n<h3 class=\"wp-block-heading\" id=\"i-51\">foreach\u30eb\u30fc\u30d7\u6d3b\u7528\u306e\u305f\u3081\u306e5\u3064\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-198\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">foreach\u30eb\u30fc\u30d7\u6d3b\u7528\u306e\u305f\u3081\u306e5\u3064\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-194\">\n<li><strong>\u9069\u5207\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u306e\u7406\u89e3<\/strong>\uff1a foreach\u30eb\u30fc\u30d7\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u4e0d\u8981\u3067\u5168\u8981\u7d20\u3092\u51e6\u7406\u3059\u308b\u5358\u7d14\u306a\u53cd\u5fa9\u51e6\u7406\u306b\u6700\u9069\u3067\u3059\u3002\u8907\u96d1\u306a\u64cd\u4f5c\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u4ed6\u306e\u65b9\u6cd5\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-195\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u914d\u616e<\/strong>\uff1a \u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3084\u8907\u96d1\u306a\u51e6\u7406\u3067\u306f\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3084Stream API\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u6700\u9069\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-196\">\n<li><strong>\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/strong>\uff1a \u9069\u5207\u306a\u5909\u6570\u540d\u306e\u4f7f\u7528\u3068\u30b3\u30e1\u30f3\u30c8\u306e\u8ffd\u52a0\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u4f1d\u3048\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001<code>for (Customer customer : customerList)<\/code> \u306e\u3088\u3046\u306b\u3001\u5909\u6570\u540d\u304b\u3089\u51e6\u7406\u306e\u5185\u5bb9\u304c\u63a8\u6e2c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-197\">\n<li><strong>\u5236\u9650\u4e8b\u9805\u306e\u8a8d\u8b58\u3068\u5bfe\u51e6<\/strong>\uff1a \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u64cd\u4f5c\u3084\u8981\u7d20\u306e\u524a\u9664\u306a\u3069\u3001foreach\u30eb\u30fc\u30d7\u306e\u5236\u9650\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u4ee3\u66ff\u624b\u6bb5\u3092\u7528\u3044\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30a4\u30c6\u30ec\u30fc\u30bf\u3084\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div>\n\n\n<li><strong>\u65b0\u6a5f\u80fd\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong>\uff1a Java 8\u4ee5\u964d\u306e\u30e9\u30e0\u30c0\u5f0f\u3084Stream API\u3068foreach\u30eb\u30fc\u30d7\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u3067\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-199\">\n<h3 class=\"wp-block-heading\" id=\"i-52\">\u3055\u3089\u306a\u308b\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u3068\u5b9f\u8df5\u7684\u306a\u8ab2\u984c<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-200\">\n<p>\u5b66\u7fd2\u3092\u6df1\u3081\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-201\">\n<li>Oracle\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff1a https:\/\/docs.oracle.com\/javase\/tutorial\/collections\/interfaces\/collection.html<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-202\">\n<li>\u300cEffective Java\u300d\uff08Joshua Bloch\u8457\uff09<\/li>\n<\/div>\n\n\n<li>\u300cJava Performance\uff1a The Definitive Guide\u300d\uff08Scott Oaks\u8457\uff09<\/li>\n<\/ul>\n\n\n<div id=\"sgb-css-id-203\">\n<p>\u307e\u305f\u3001\u5b9f\u8df5\u7684\u306a\u30b9\u30ad\u30eb\u5411\u4e0a\u306e\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u8ab2\u984c\u306b\u6311\u6226\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-204\">\n<li><strong>\u30ab\u30b9\u30bf\u30e0\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5<\/strong>\uff1a foreach\u30eb\u30fc\u30d7\u3067\u4f7f\u7528\u53ef\u80fd\u306a\u72ec\u81ea\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u3092\u5b9f\u88c5\u3057\u3001\u30a4\u30c6\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u7528\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-205\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03<\/strong>\uff1a \u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u3001foreach\u30eb\u30fc\u30d7\u3001\u5f93\u6765\u306efor\u30eb\u30fc\u30d7\u3001Stream API\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6bd4\u8f03\u3057\u3001\u7d50\u679c\u3092\u5206\u6790\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/div>\n\n\n<li><strong>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6f14\u7fd2<\/strong>\uff1a \u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u5206\u6790\u3057\u3001\u9069\u5207\u306a\u7b87\u6240\u3067foreach\u30eb\u30fc\u30d7\u3092\u5c0e\u5165\u3057\u3066\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u5411\u4e0a\u3055\u305b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ol>\n\n\n<div id=\"sgb-css-id-206\">\n<p>Java\u8a00\u8a9e\u306f\u5e38\u306b\u9032\u5316\u3057\u3066\u304a\u308a\u3001foreach\u30eb\u30fc\u30d7\u3082\u5c06\u6765\u7684\u306b\u306f\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u306e\u7d71\u5408\u3084\u4e26\u5217\u51e6\u7406\u306e\u3055\u3089\u306a\u308b\u6700\u9069\u5316\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002\u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\u3068\u5b9f\u8df5\u3092\u901a\u3058\u3066\u3001Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30b9\u30ad\u30eb\u3092\u78e8\u304d\u7d9a\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u5185\u5bb9\u3092\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u7528\u3057\u3001foreach\u30eb\u30fc\u30d7\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3066\u3044\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u52b9\u7387\u7684\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u306f\u3001\u3042\u306a\u305f\u3068\u4ed6\u306e\u958b\u767a\u8005\u306e\u4e21\u65b9\u306b\u3068\u3063\u3066\u5927\u304d\u306a\u4fa1\u5024\u3092\u3082\u305f\u3089\u3059\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; 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