{"id":201,"date":"2024-10-02T14:08:25","date_gmt":"2024-10-02T05:08:25","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=201"},"modified":"2025-03-24T08:54:57","modified_gmt":"2025-03-23T23:54:57","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91java%e4%be%8b%e5%a4%96%e5%87%a6%e7%90%86%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e8%ac%9b%e5%ba%a7%ef%bc%9a%e5%9f%ba%e7%a4%8e%e3%81%8b","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=201","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011Java\u4f8b\u5916\u51e6\u7406\u30de\u30b9\u30bf\u30fc\u8b1b\u5ea7\uff1a\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u306715\u306e\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"<div id=\"sgb-css-id-1\">\n<p>\u3042\u306a\u305f\u306eJava\u30b3\u30fc\u30c9\u306f\u3001\u4e88\u671f\u305b\u306c\u72b6\u6cc1\u306b\u9069\u5207\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u307e\u3059\u304b\uff1f\u5168\u65e5\u672c\u80fd\u7387\u9023\u76df\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u54c1\u8cea\u8abf\u67fb\u306b\u3088\u308b\u3068\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u969c\u5bb3\u306e\u7d0440%\u304c\u4e0d\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406\u306b\u8d77\u56e0\u3057\u3066\u3044\u308b\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001Developer\u306e\u8abf\u67fb\u3067\u306f\u3001\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30d0\u30c3\u30b0\u6642\u9593\u3092\u6700\u592760%\u524a\u6e1b\u3067\u304d\u308b\u3068\u3044\u3046\u7d50\u679c\u3082\u51fa\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-2\">\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Java\u306b\u304a\u3051\u308b\u4f8b\u5916\u51e6\u7406\uff08exception handling\uff09\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u3001\u4f53\u7cfb\u7684\u306b\u5b66\u3076\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u521d\u5fc3\u8005\u304b\u3089\u30d9\u30c6\u30e9\u30f3\u307e\u3067\u3001\u5168\u3066\u306eJava\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u5f79\u7acb\u306415\u306e\u91cd\u8981\u30c6\u30af\u30cb\u30c3\u30af\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-3\">\n<p>\u4ee5\u4e0b\u306e\u30c8\u30d4\u30c3\u30af\u3092\u901a\u3058\u3066\u3001\u3042\u306a\u305f\u306eJava\u30b9\u30ad\u30eb\u3092\u6b21\u306e\u30ec\u30d9\u30eb\u306b\u5f15\u304d\u4e0a\u3052\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-9\">\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\">\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3079\u308b\u3053\u3068<\/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-4\">\n<li><strong>Java\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u790e\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b3\u3064\u306e\u91cd\u8981\u6982\u5ff5<\/strong><\/li>\n<\/div>\n\n<div id=\"sgb-css-id-5\">\n<li><strong>\u5b9f\u8df5\u7684\u306a\u4f8b\u5916\u51e6\u7406\uff1a5\u3064\u306e\u52b9\u679c\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/strong><\/li>\n<\/div>\n\n<div id=\"sgb-css-id-6\">\n<li><strong>\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b3\u3064\u306e\u624b\u6cd5<\/strong><\/li>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u8003\u616e\u3057\u305f\u9ad8\u5ea6\u306a\u4f8b\u5916\u51e6\u7406\uff1a4\u3064\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/strong><\/li>\n<\/div>\n\n<div id=\"sgb-css-id-8\">\n<li><strong>Java\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u9665\u308a\u3084\u3059\u3044\u4f8b\u5916\u51e6\u7406\u306e\u843d\u3068\u3057\u7a74\u3068\u5bfe\u7b56<\/strong><\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3080\u3053\u3068\u3067\u3001\u5805\u7262\u306aJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u3001\u30c7\u30d0\u30c3\u30b0\u6642\u9593\u3092\u77ed\u7e2e\u3057\u3001\u5373\u5b9f\u52d9\u3067\u6d3b\u7528\u3067\u304d\u308b\u9ad8\u5ea6\u306a\u4f8b\u5916\u51e6\u7406\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7fd2\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\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\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u790e\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b3\u3064\u306e\u91cd\u8981\u6982\u5ff5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">1.1 \u4f8b\u5916\u3068\u306f\uff1f\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u300c\u60f3\u5b9a\u5916\u300d\u3092\u5236\u5fa1\u3059\u308b\u9375<\/a>      <\/li>      <li>        <a href=\"#i-2\">1.2 checked\u4f8b\u5916\u3068unchecked\u4f8b\u5916\uff1a2\u3064\u306e\u4f8b\u5916\u30bf\u30a4\u30d7\u306e\u9055\u3044\u3068\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">1.3 try-catch-finally\u306e\u57fa\u672c\uff1a\u30b3\u30fc\u30c9\u3067\u5b66\u3076\u4f8b\u5916\u51e6\u7406\u306e\u6d41\u308c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">2. \u5b9f\u8df5\u7684\u306a\u4f8b\u5916\u51e6\u7406\uff1a5\u3064\u306e\u52b9\u679c\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">2.1 \u9069\u5207\u306a\u7c92\u5ea6\u3067\u306e\u4f8b\u5916\u30ad\u30e3\u30c3\u30c1\uff1a\u7d30\u304b\u3059\u304e\u305a\u3001\u5927\u304d\u3059\u304e\u306a\u3044\u4f8b\u5916\u51e6\u7406\u306e\u5b9f\u73fe<\/a>      <\/li>      <li>        <a href=\"#i-6\">2.2 \u4f8b\u5916\u306e\u518d\u30b9\u30ed\u30fc\uff1a\u3088\u308a\u4e0a\u4f4d\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-7\">2.3 \u4f8b\u5916\u6291\u5236\uff1a\u8907\u6570\u306e\u4f8b\u5916\u3092\u52b9\u7387\u7684\u306b\u6271\u3046\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-8\">2.4 Java 7\u306etry-with-resources\uff1a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3059\u308b\u9b54\u6cd5\u306e\u3088\u3046\u306a\u69cb\u6587<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">2.5 \u30de\u30eb\u30c1\u30ad\u30e3\u30c3\u30c1\uff1a\u8907\u6570\u306e\u4f8b\u5916\u3092\u4e00\u62ec\u3067\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">3. \u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b3\u3064\u306e\u624b\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">3.1 \u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u30af\u30e9\u30b9\u306e\u4f5c\u6210\uff1a\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u3068\u6ce8\u610f\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-12\">3.2 \u4f8b\u5916\u306e\u9023\u9396\uff1a\u539f\u56e0\u3068\u306a\u308b\u4f8b\u5916\u3092\u4fdd\u6301\u3057\u3066\u30c7\u30d0\u30c3\u30b0\u3092\u5bb9\u6613\u306b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-13\">3.3 \u610f\u5473\u306e\u3042\u308b\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\uff1a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u52a9\u3051\u308b\u60c5\u5831\u8a2d\u8a08<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">4. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u8003\u616e\u3057\u305f\u9ad8\u5ea6\u306a\u4f8b\u5916\u51e6\u7406\uff1a4\u3064\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">4.1 \u4f8b\u5916\u306e\u4f7f\u7528\u3092\u6700\u5c0f\u9650\u306b\uff1a\u9ad8\u30b3\u30b9\u30c8\u306a\u51e6\u7406\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u6226\u7565<\/a>      <\/li>      <li>        <a href=\"#i-16\">4.2 \u30ed\u30b0\u3068\u4f8b\u5916\u51e6\u7406\u306e\u9023\u643a\uff1a\u52b9\u679c\u7684\u306a\u30a8\u30e9\u30fc\u8ffd\u8de1\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u7bc9<\/a>      <\/li>      <li>        <a href=\"#i-17\">4.3 \u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\uff1aJUnit\u3092\u4f7f\u3063\u305f\u4f8b\u5916\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">4.4 \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306b\u304a\u3051\u308b\u4f8b\u5916\u51e6\u7406\uff1a\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u6226\u7565<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-19\">5. Java\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u9665\u308a\u3084\u3059\u3044\u4f8b\u5916\u51e6\u7406\u306e\u843d\u3068\u3057\u7a74\u3068\u5bfe\u7b56<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-20\">5.1 \u4f8b\u5916\u3092\u7121\u8996\u3059\u308b\u5371\u967a\u6027\uff1a\u7a7a\u306ecatch\u30d6\u30ed\u30c3\u30af\u304c\u5f15\u304d\u8d77\u3053\u3059\u554f\u984c<\/a>      <\/li>      <li>        <a href=\"#i-21\">5.2 \u904e\u5270\u306a\u4f8b\u5916\u51e6\u7406\uff1a\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u640d\u306a\u3046\u4f8b\u5916\u306e\u4e71\u7528<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-22\">5.3 \u4e0d\u9069\u5207\u306a\u4f8b\u5916\u306e\u4f7f\u7528\uff1a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u4f8b\u5916\u3067\u5236\u5fa1\u3059\u308b\u8aa4\u308a<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-23\">6. \u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u3067\u5b9f\u73fe\u3059\u308b\u5805\u7262\u306aJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-24\">6.1 \u4f8b\u5916\u51e6\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a5\u3064\u306e\u9ec4\u91d1\u5f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-25\">6.2 \u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\uff1aJava\u4f8b\u5916\u51e6\u7406\u306e\u6700\u65b0\u30c8\u30ec\u30f3\u30c9\u3068\u30ea\u30bd\u30fc\u30b9<\/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\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u790e\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b3\u3064\u306e\u91cd\u8981\u6982\u5ff5<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-12\">\n<p>Java\u4f8b\u5916\u51e6\u7406\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5805\u7262\u6027\u3068\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u91cd\u8981\u306a\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u521d\u5fc3\u8005\u306e\u65b9\u3067\u3082\u7406\u89e3\u3057\u3084\u3059\u3044\u3088\u3046\u30013\u3064\u306e\u91cd\u8981\u306a\u6982\u5ff5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-13\">\n<h3 class=\"wp-block-heading\" id=\"i-1\">1.1 \u4f8b\u5916\u3068\u306f\uff1f\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u300c\u60f3\u5b9a\u5916\u300d\u3092\u5236\u5fa1\u3059\u308b\u9375<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<p>\u4f8b\u5916\uff08Exception\uff09\u3068\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4e2d\u306b\u767a\u751f\u3059\u308b\u4e88\u671f\u3057\u306a\u3044\u4e8b\u8c61\u306e\u3053\u3068\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u304c\u5207\u308c\u305f\u3001\u914d\u5217\u306e\u7bc4\u56f2\u5916\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u306a\u3069\u3001\u69d8\u3005\u306a\u72b6\u6cc1\u3067\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-18\">\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\">\u4f8b\u5916\u51e6\u7406\u306e\u30e1\u30ea\u30c3\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-15\">\n<li>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30af\u30e9\u30c3\u30b7\u30e5\u3092\u9632\u3050<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-16\">\n<li>\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3084\u3059\u304f\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-17\">\n<li>\u30e6\u30fc\u30b6\u30fc\u306b\u9069\u5207\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3067\u304d\u308b<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-19\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">1.2 checked\u4f8b\u5916\u3068unchecked\u4f8b\u5916\uff1a2\u3064\u306e\u4f8b\u5916\u30bf\u30a4\u30d7\u306e\u9055\u3044\u3068\u4f7f\u3044\u5206\u3051<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-20\">\n<p>Java\u306e\u4f8b\u5916\u306f\u5927\u304d\u304f2\u3064\u306e\u30bf\u30a4\u30d7\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-24\">\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\">1. checked\u4f8b\u5916\uff08\u691c\u67fb\u4f8b\u5916\uff09<\/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>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30c1\u30a7\u30c3\u30af\u3055\u308c\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<li>\u5fc5\u305a\u51e6\u7406\u3059\u308b\u304b\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u5ba3\u8a00\u90e8\u3067throws\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-23\">\n<li>\u4f8b\uff1aIOException, SQLException<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-28\">\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\">2. unchecked\u4f8b\u5916\uff08\u975e\u691c\u67fb\u4f8b\u5916\uff09<\/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-25\">\n<li>\u5b9f\u884c\u6642\u306b\u767a\u751f\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-26\">\n<li>\u660e\u793a\u7684\u306a\u51e6\u7406\u306f\u5f37\u5236\u3055\u308c\u306a\u3044<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-27\">\n<li>\u4f8b\uff1aNullPointerException, ArrayIndexOutOfBoundsException<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-29\">\n<p>\u4f7f\u3044\u5206\u3051\u306e\u57fa\u6e96\uff1a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-30\">\n<li>\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304c\u56de\u5fa9\u53ef\u80fd\u306a\u30a8\u30e9\u30fc \u2192 checked\u4f8b\u5916<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-31\">\n<li>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30d0\u30b0\u3084\u4e88\u6e2c\u4e0d\u53ef\u80fd\u306a\u7570\u5e38 \u2192 unchecked\u4f8b\u5916<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-32\">\n<h3 class=\"wp-block-heading\" id=\"i-3\">1.3 try-catch-finally\u306e\u57fa\u672c\uff1a\u30b3\u30fc\u30c9\u3067\u5b66\u3076\u4f8b\u5916\u51e6\u7406\u306e\u6d41\u308c<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-33\">\n<p>\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u672c\u69cb\u9020\u306f\u3001try-catch-finally\u30d6\u30ed\u30c3\u30af\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u793a\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=\"\">try {\n    \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\n    int result = 10 \/ 0;  \/\/ ArithmeticException\u304c\u767a\u751f\n} catch (ArithmeticException e) {\n    \/\/ \u4f8b\u5916\u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3066\u51e6\u7406\n    System.out.println(\"0\u3067\u9664\u7b97\u306f\u3067\u304d\u307e\u305b\u3093: \" + e.getMessage());\n} finally {\n    \/\/ \u4f8b\u5916\u306e\u6709\u7121\u306b\u95a2\u308f\u3089\u305a\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\n    System.out.println(\"\u51e6\u7406\u3092\u7d42\u4e86\u3057\u307e\u3059\");\n}<\/pre>\n\n\n<div id=\"sgb-css-id-37\">\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\">\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u672c\u69cb\u9020<\/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-34\">\n<li><strong>try<\/strong>\uff1a\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u56f2\u3080<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-35\">\n<li><strong>catch<\/strong>\uff1a\u7279\u5b9a\u306e\u4f8b\u5916\u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3066\u51e6\u7406\u3059\u308b\uff08\u8907\u6570\u6307\u5b9a\u53ef\u80fd\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<li><strong>finally<\/strong>\uff1a\u4f8b\u5916\u306e\u767a\u751f\u6709\u7121\u306b\u95a2\u308f\u3089\u305a\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u308b\uff08\u7701\u7565\u53ef\u80fd\uff09<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-38\">\n<p>\u3053\u308c\u30893\u3064\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001Java\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u790e\u304c\u8eab\u306b\u3064\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3064\u3044\u3066\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-39\">\n<h2 class=\"wp-block-heading\" id=\"i-4\">2. \u5b9f\u8df5\u7684\u306a\u4f8b\u5916\u51e6\u7406\uff1a5\u3064\u306e\u52b9\u679c\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-40\">\n<p>\u57fa\u672c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\u3001\u3088\u308a\u9ad8\u5ea6\u3067\u52b9\u679c\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e5\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044Java\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-41\">\n<h3 class=\"wp-block-heading\" id=\"i-5\">2.1 \u9069\u5207\u306a\u7c92\u5ea6\u3067\u306e\u4f8b\u5916\u30ad\u30e3\u30c3\u30c1\uff1a\u7d30\u304b\u3059\u304e\u305a\u3001\u5927\u304d\u3059\u304e\u306a\u3044\u4f8b\u5916\u51e6\u7406\u306e\u5b9f\u73fe<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-42\">\n<p>\u9069\u5207\u306a\u7c92\u5ea6\u3067\u4f8b\u5916\u3092\u30ad\u30e3\u30c3\u30c1\u3059\u308b\u3053\u3068\u306f\u3001\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3084\u3059\u304f\u3057\u3001\u9069\u5207\u306a\u5bfe\u5fdc\u3092\u53d6\u308b\u305f\u3081\u306b\u91cd\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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1atoo broad\ntry {\n    \/\/ \u4f55\u3089\u304b\u306e\u51e6\u7406\n} catch (Exception e) {\n    System.out.println(\"\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\");\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u9069\u5207\u306a\u7c92\u5ea6\ntry {\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u306e\u51e6\u7406\n} catch (FileNotFoundException e) {\n    System.out.println(\"\u30d5\u30a1\u30a4\u30eb\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093: \" + e.getMessage());\n} catch (IOException e) {\n    System.out.println(\"\u5165\u51fa\u529b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f: \" + e.getMessage());\n}<\/pre>\n\n\n<div id=\"sgb-css-id-43\">\n<h3 class=\"wp-block-heading\" id=\"i-6\">2.2 \u4f8b\u5916\u306e\u518d\u30b9\u30ed\u30fc\uff1a\u3088\u308a\u4e0a\u4f4d\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3059\u308b\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-44\">\n<p>\u4f8b\u5916\u306e\u518d\u30b9\u30ed\u30fc\u306f\u3001\u73fe\u5728\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u4f8b\u5916\u3092\u5b8c\u5168\u306b\u51e6\u7406\u3067\u304d\u306a\u3044\u5834\u5408\u306b\u6709\u7528\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u5358\u7d14\u306b\u518d\u30b9\u30ed\u30fc\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u4f8b\u5916\u3092\u30e9\u30c3\u30d7\u3057\u3066\u8ffd\u52a0\u60c5\u5831\u3092\u4ed8\u4e0e\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\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=\"\">public void processFile(String filename) throws CustomFileException {\n    try {\n        \/\/ \u30d5\u30a1\u30a4\u30eb\u51e6\u7406\n    } catch (IOException e) {\n        throw new CustomFileException(\"\u30d5\u30a1\u30a4\u30eb\u51e6\u7406\u4e2d\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\", e);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-45\">\n<h3 class=\"wp-block-heading\" id=\"i-7\">2.3 \u4f8b\u5916\u6291\u5236\uff1a\u8907\u6570\u306e\u4f8b\u5916\u3092\u52b9\u7387\u7684\u306b\u6271\u3046\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-46\">\n<p>Java 7\u3067\u5c0e\u5165\u3055\u308c\u305f\u4f8b\u5916\u6291\u5236\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8907\u6570\u306e\u4f8b\u5916\u3092\u52b9\u7387\u7684\u306b\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001try-with-resources\u69cb\u6587\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u52b9\u679c\u7684\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=\"\">public void processResources() throws MainException {\n    MainException mainException = null;\n    try {\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u51e6\u7406\n    } catch (Exception e) {\n        mainException = new MainException(\"\u30e1\u30a4\u30f3\u306e\u4f8b\u5916\", e);\n    } finally {\n        try {\n            \/\/ \u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u51e6\u7406\n        } catch (Exception e) {\n            if (mainException != null) {\n                mainException.addSuppressed(e);\n            } else {\n                mainException = new MainException(\"\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u4e2d\u306e\u4f8b\u5916\", e);\n            }\n        }\n    }\n    if (mainException != null) {\n        throw mainException;\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-47\">\n<h3 class=\"wp-block-heading\" id=\"i-8\">2.4 Java 7\u306etry-with-resources\uff1a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u3092\u81ea\u52d5\u5316\u3059\u308b\u9b54\u6cd5\u306e\u3088\u3046\u306a\u69cb\u6587<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-48\">\n<p>try-with-resources\u69cb\u6587\u306f\u3001AutoCloseable\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30ea\u30bd\u30fc\u30b9\u3092\u81ea\u52d5\u7684\u306b\u9589\u3058\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u4fbf\u5229\u306a\u6a5f\u80fd\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=\"\">\/\/ \u5f93\u6765\u306e\u65b9\u6cd5\nBufferedReader br = null;\ntry {\n    br = new BufferedReader(new FileReader(\"test.txt\"));\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u51e6\u7406\n} finally {\n    if (br != null) {\n        br.close();\n    }\n}\n\n\/\/ try-with-resources\ntry (BufferedReader br = new BufferedReader(new FileReader(\"test.txt\"))) {\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u51e6\u7406\n}<\/pre>\n\n\n<div id=\"sgb-css-id-49\">\n<h3 class=\"wp-block-heading\" id=\"i-9\">2.5 \u30de\u30eb\u30c1\u30ad\u30e3\u30c3\u30c1\uff1a\u8907\u6570\u306e\u4f8b\u5916\u3092\u4e00\u62ec\u3067\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-50\">\n<p>Java 7\u3067\u5c0e\u5165\u3055\u308c\u305f\u30de\u30eb\u30c1\u30ad\u30e3\u30c3\u30c1\u69cb\u6587\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8907\u6570\u306e\u4f8b\u5916\u30921\u3064\u306ecatch\u30d6\u30ed\u30c3\u30af\u3067\u51e6\u7406\u3067\u304d\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=\"\">try {\n    \/\/ \u4f55\u3089\u304b\u306e\u51e6\u7406\n} catch (IOException | SQLException e) {\n    System.out.println(\"\u5165\u51fa\u529b\u30a8\u30e9\u30fc\u307e\u305f\u306fSQL\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3057\u305f: \" + e.getMessage());\n}<\/pre>\n\n\n<div id=\"sgb-css-id-51\">\n<p>\u3053\u308c\u3089\u306e5\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u679c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u306e\u4f5c\u6210\u65b9\u6cd5\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<h2 class=\"wp-block-heading\" id=\"i-10\">3. \u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\uff1a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b3\u3064\u306e\u624b\u6cd5<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-53\">\n<p>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u8981\u4ef6\u3084\u8907\u96d1\u306a\u30a8\u30e9\u30fc\u72b6\u6cc1\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3001\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u306e\u4f5c\u6210\u306f\u975e\u5e38\u306b\u6709\u7528\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u52b9\u679c\u7684\u306a\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306e3\u3064\u306e\u91cd\u8981\u306a\u624b\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-54\">\n<h3 class=\"wp-block-heading\" id=\"i-11\">3.1 \u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u30af\u30e9\u30b9\u306e\u4f5c\u6210\uff1a\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u3068\u6ce8\u610f\u70b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-55\">\n<p>\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u969b\u306f\u3001\u901a\u5e38Exception\u30af\u30e9\u30b9\uff08\u307e\u305f\u306f\u305d\u306e\u5b50\u30af\u30e9\u30b9\uff09\u3092\u7d99\u627f\u3057\u307e\u3059\u3002\u30af\u30e9\u30b9\u540d\u306f\u300cException\u300d\u3067\u7d42\u308f\u308b\u306e\u304c\u6163\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=\"\">public class InvalidUserInputException extends Exception {\n    private static final long serialVersionUID = 1L;\n\n    public InvalidUserInputException(String message) {\n        super(message);\n    }\n\n    public InvalidUserInputException(String message, Throwable cause) {\n        super(message, cause);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-59\">\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\">\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9<\/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-56\">\n<li>\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u53ef\u80fd\u306b\u3059\u308b\u305f\u3081\u3001serialVersionUID\u3092\u5b9a\u7fa9\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-57\">\n<li>\u5c11\u306a\u304f\u3068\u3082\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u539f\u56e0\u4f8b\u5916\u3092\u53d7\u3051\u53d6\u308b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u5b9f\u88c5\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-58\">\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u8ffd\u52a0\u306e\u60c5\u5831\u3092\u4fdd\u6301\u3059\u308b\u30d5\u30a3\u30fc\u30eb\u30c9\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3059\u308b<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-60\">\n<h3 class=\"wp-block-heading\" id=\"i-12\">3.2 \u4f8b\u5916\u306e\u9023\u9396\uff1a\u539f\u56e0\u3068\u306a\u308b\u4f8b\u5916\u3092\u4fdd\u6301\u3057\u3066\u30c7\u30d0\u30c3\u30b0\u3092\u5bb9\u6613\u306b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\n<p>\u4f8b\u5916\u306e\u9023\u9396\uff08\u4f8b\u5916\u30c1\u30a7\u30fc\u30f3\uff09\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30a8\u30e9\u30fc\u306e\u6839\u672c\u539f\u56e0\u3092\u8ffd\u8de1\u3057\u3084\u3059\u304f\u306a\u308a\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=\"\">try {\n    \/\/ \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\n} catch (SQLException e) {\n    throw new DatabaseOperationException(\"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306b\u5931\u6557\u3057\u307e\u3057\u305f\", e);\n}<\/pre>\n\n\n<div id=\"sgb-css-id-62\">\n<p>getCause()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5143\u306e\u4f8b\u5916\u3092\u53d6\u5f97\u3067\u304d\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=\"\">try {\n    \/\/ \u4f55\u3089\u304b\u306e\u51e6\u7406\n} catch (DatabaseOperationException e) {\n    System.err.println(\"\u30a8\u30e9\u30fc: \" + e.getMessage());\n    Throwable cause = e.getCause();\n    if (cause != null) {\n        System.err.println(\"\u539f\u56e0: \" + cause.getMessage());\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-63\">\n<p>\u3053\u306e\u624b\u6cd5\u306b\u3088\u308a\u3001\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u969b\u306e\u8a73\u7d30\u306a\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u4fdd\u6301\u3067\u304d\u3001\u30c7\u30d0\u30c3\u30b0\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-64\">\n<h3 class=\"wp-block-heading\" id=\"i-13\">3.3 \u610f\u5473\u306e\u3042\u308b\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\uff1a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u52a9\u3051\u308b\u60c5\u5831\u8a2d\u8a08<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-65\">\n<p>\u9069\u5207\u306a\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001\u554f\u984c\u306e\u8fc5\u901f\u306a\u7279\u5b9a\u3068\u89e3\u6c7a\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u306b\u6ce8\u610f\u3057\u3066\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a2d\u8a08\u3057\u307e\u3057\u3087\u3046\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\">\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u8a2d\u5b9a\u306e\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-66\">\n<li>\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u660e\u78ba\u306b\u793a\u3059<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-67\">\n<li>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u3092\u542b\u3081\u308b\uff08\u30e1\u30bd\u30c3\u30c9\u540d\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u5024\u306a\u3069\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-68\">\n<li>\u4e00\u8cab\u3057\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-69\">\n<p>\u30b3\u30fc\u30c9\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a<\/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=\"\">public void processUser(User user) throws InvalidUserException {\n    if (user == null) {\n        throw new InvalidUserException(\"\u30e6\u30fc\u30b6\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304cnull\u3067\u3059\");\n    }\n    if (user.getName() == null || user.getName().isEmpty()) {\n        throw new InvalidUserException(\n            String.format(\"\u7121\u52b9\u306a\u30e6\u30fc\u30b6\u30fc\u540d\u3067\u3059: \u30e6\u30fc\u30b6\u30fcID=%d, \u540d\u524d=%s\",\n                          user.getId(), user.getName())\n        );\n    }\n    \/\/ \u51e6\u7406\u7d9a\u884c\n}<\/pre>\n\n\n<div id=\"sgb-css-id-70\">\n<p>\u3053\u308c\u3089\u306e3\u3064\u306e\u624b\u6cd5\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u554f\u984c\u306b\u52b9\u679c\u7684\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u8003\u616e\u3057\u305f\u9ad8\u5ea6\u306a\u4f8b\u5916\u51e6\u7406\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-71\">\n<h2 class=\"wp-block-heading\" id=\"i-14\">4. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u8003\u616e\u3057\u305f\u9ad8\u5ea6\u306a\u4f8b\u5916\u51e6\u7406\uff1a4\u3064\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-72\">\n<p>\u4f8b\u5916\u51e6\u7406\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u9069\u5207\u306b\u8a2d\u8a08\u30fb\u5b9f\u88c5\u3057\u306a\u3044\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084\u4fdd\u5b88\u6027\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u52b9\u7387\u7684\u3067\u7ba1\u7406\u3057\u3084\u3059\u3044\u4f8b\u5916\u51e6\u7406\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e4\u3064\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-73\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">4.1 \u4f8b\u5916\u306e\u4f7f\u7528\u3092\u6700\u5c0f\u9650\u306b\uff1a\u9ad8\u30b3\u30b9\u30c8\u306a\u51e6\u7406\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u6226\u7565<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-74\">\n<p>\u4f8b\u5916\u51e6\u7406\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30b3\u30b9\u30c8\u304c\u9ad8\u3044\u305f\u3081\u3001\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u4f7f\u7528\u306b\u7559\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-75\">\n<li>\u901a\u5e38\u306e\u30d5\u30ed\u30fc\u5236\u5fa1\u306b\u306f\u4f8b\u5916\u3092\u4f7f\u7528\u3057\u306a\u3044<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-76\">\n<li>Optional\u30af\u30e9\u30b9\u3084\u623b\u308a\u5024\u3067\u306e\u30a8\u30e9\u30fc\u8868\u73fe\u3092\u6d3b\u7528\u3059\u308b<\/li>\n<\/div><\/ul>\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=\"\">\/\/ \u4f8b\u5916\u3092\u4f7f\u7528\u3059\u308b\u4ee3\u308f\u308a\u306b\npublic Optional&lt;User&gt; findUserById(int id) {\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306fOptional.empty()\u3092\u8fd4\u3059\n    return Optional.ofNullable(userRepository.findById(id));\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nfindUserById(123).ifPresentOrElse(\n    user -&gt; System.out.println(\"Found: \" + user.getName()),\n    () -&gt; System.out.println(\"User not found\")\n);<\/pre>\n\n\n<div id=\"sgb-css-id-77\">\n<h3 class=\"wp-block-heading\" id=\"i-16\">4.2 \u30ed\u30b0\u3068\u4f8b\u5916\u51e6\u7406\u306e\u9023\u643a\uff1a\u52b9\u679c\u7684\u306a\u30a8\u30e9\u30fc\u8ffd\u8de1\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u7bc9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-78\">\n<p>\u30ed\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff08SLF4J\u3084Log4j\u306a\u3069\uff09\u3068\u4f8b\u5916\u51e6\u7406\u3092\u9069\u5207\u306b\u9023\u643a\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u679c\u7684\u306a\u30a8\u30e9\u30fc\u8ffd\u8de1\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-79\">\n<li>\u9069\u5207\u306a\u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u4f7f\u7528\u3059\u308b\uff08INFO, WARN, ERROR\u7b49\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-80\">\n<li>\u69cb\u9020\u5316\u30ed\u30b0\u3092\u5229\u7528\u3057\u3066\u691c\u7d22\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-81\">\n<li>MDC (Mapped Diagnostic Context) \u3092\u6d3b\u7528\u3057\u3066\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u3092\u8ffd\u52a0\u3059\u308b<\/li>\n<\/div><\/ul>\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=\"\">import org.slf4j.Logger;\nimport org.slf4j.LoggerFactory;\nimport org.slf4j.MDC;\n\npublic class UserService {\n    private static final Logger logger = LoggerFactory.getLogger(UserService.class);\n\n    public void processUser(User user) {\n        MDC.put(\"userId\", String.valueOf(user.getId()));\n        try {\n            \/\/ \u30e6\u30fc\u30b6\u30fc\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n            logger.info(\"User processed successfully\");\n        } catch (Exception e) {\n            logger.error(\"Error processing user\", e);\n        } finally {\n            MDC.clear();\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-82\">\n<h3 class=\"wp-block-heading\" id=\"i-17\">4.3 \u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\uff1aJUnit\u3092\u4f7f\u3063\u305f\u4f8b\u5916\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-83\">\n<p>\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u306f\u3001\u30b3\u30fc\u30c9\u306e\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002JUnit\u3092\u4f7f\u7528\u3057\u3066\u52b9\u679c\u7684\u306a\u4f8b\u5916\u30c6\u30b9\u30c8\u3092\u5b9f\u88c5\u3067\u304d\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=\"\">import org.junit.jupiter.api.Test;\nimport static org.junit.jupiter.api.Assertions.*;\n\npublic class UserServiceTest {\n    @Test\n    void testInvalidUserInput() {\n        UserService service = new UserService();\n        assertThrows(InvalidUserInputException.class, () -&gt; {\n            service.processUser(null);\n        });\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-84\">\n<p>AssertJ\u306a\u3069\u306e\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30c6\u30b9\u30c8\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-85\">\n<h3 class=\"wp-block-heading\" id=\"i-18\">4.4 \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306b\u304a\u3051\u308b\u4f8b\u5916\u51e6\u7406\uff1a\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u6226\u7565<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-86\">\n<p>\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u4f8b\u5916\u4f1d\u64ad\u3084\u4e00\u8cab\u3057\u305f\u30a8\u30e9\u30fc\u51e6\u7406\u304c\u8ab2\u984c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-87\">\n<li>\u7d71\u4e00\u3055\u308c\u305f\u30a8\u30e9\u30fc\u30ec\u30b9\u30dd\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5b9a\u7fa9\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<li>Circuit Breaker \u30d1\u30bf\u30fc\u30f3\u3092\u5b9f\u88c5\u3057\u3066\u969c\u5bb3\u306e\u9023\u9396\u3092\u9632\u3050<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-89\">\n<li>\u5206\u6563\u30c8\u30ec\u30fc\u30b7\u30f3\u30b0\u3092\u6d3b\u7528\u3057\u3066\u30a8\u30e9\u30fc\u306e\u8ffd\u8de1\u3092\u5bb9\u6613\u306b\u3059\u308b<\/li>\n<\/div><\/ul>\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=\"\">@RestControllerAdvice\npublic class GlobalExceptionHandler {\n    @ExceptionHandler(Exception.class)\n    public ResponseEntity&lt;ErrorResponse&gt; handleException(Exception ex) {\n        ErrorResponse error = new ErrorResponse(\"INTERNAL_SERVER_ERROR\", ex.getMessage());\n        return new ResponseEntity&lt;&gt;(error, HttpStatus.INTERNAL_SERVER_ERROR);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-90\">\n<p>\u3053\u308c\u3089\u306e4\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u306b\u512a\u308c\u305f\u4f8b\u5916\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001Java\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u9665\u308a\u3084\u3059\u3044\u4f8b\u5916\u51e6\u7406\u306e\u843d\u3068\u3057\u7a74\u3068\u3001\u305d\u306e\u5bfe\u7b56\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-91\">\n<h2 class=\"wp-block-heading\" id=\"i-19\">5. Java\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u9665\u308a\u3084\u3059\u3044\u4f8b\u5916\u51e6\u7406\u306e\u843d\u3068\u3057\u7a74\u3068\u5bfe\u7b56<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-92\">\n<p>\u4f8b\u5916\u51e6\u7406\u306f\u9069\u5207\u306b\u884c\u308f\u306a\u3044\u3068\u3001\u304b\u3048\u3063\u3066\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001Java\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3088\u304f\u9665\u308b3\u3064\u306e\u843d\u3068\u3057\u7a74\u3068\u3001\u305d\u308c\u3089\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u5bfe\u7b56\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-93\">\n<h3 class=\"wp-block-heading\" id=\"i-20\">5.1 \u4f8b\u5916\u3092\u7121\u8996\u3059\u308b\u5371\u967a\u6027\uff1a\u7a7a\u306ecatch\u30d6\u30ed\u30c3\u30af\u304c\u5f15\u304d\u8d77\u3053\u3059\u554f\u984c<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-94\">\n<p>\u7a7a\u306ecatch\u30d6\u30ed\u30c3\u30af\u306f\u3001\u6f5c\u5728\u7684\u306a\u30d0\u30b0\u306e\u6e29\u5e8a\u3068\u306a\u308a\u3001\u30c7\u30d0\u30c3\u30b0\u3092\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-95\">\n<p>\u60aa\u3044\u4f8b\uff1a<\/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=\"\">try {\n    \/\/ \u4f55\u3089\u304b\u306e\u51e6\u7406\n} catch (Exception e) {\n    \/\/ \u4f55\u3082\u3057\u306a\u3044\uff08\u7a7a\u306ecatch\u30d6\u30ed\u30c3\u30af\uff09\n}<\/pre>\n\n\n<div id=\"sgb-css-id-96\">\n<p>\u826f\u3044\u4f8b\uff1a<\/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=\"\">try {\n    \/\/ \u4f55\u3089\u304b\u306e\u51e6\u7406\n} catch (Exception e) {\n    logger.error(\"\u4e88\u671f\u305b\u306c\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\", e);\n    \/\/ \u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5bfe\u5fdc\u3092\u884c\u3046\n}<\/pre>\n\n\n<div id=\"sgb-css-id-100\">\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\">\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-97\">\n<li>\u6700\u4f4e\u9650\u3001\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u51fa\u529b\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-98\">\n<li>\u4f8b\u5916\u3092\u7121\u8996\u3059\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u7406\u7531\u3092\u660e\u78ba\u306b\u30b3\u30e1\u30f3\u30c8\u3067\u8a18\u8ff0\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-99\">\n<li>\u53ef\u80fd\u306a\u9650\u308a\u3001\u5177\u4f53\u7684\u306a\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3001\u9069\u5207\u306b\u5bfe\u5fdc\u3059\u308b<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-101\">\n<h3 class=\"wp-block-heading\" id=\"i-21\">5.2 \u904e\u5270\u306a\u4f8b\u5916\u51e6\u7406\uff1a\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u640d\u306a\u3046\u4f8b\u5916\u306e\u4e71\u7528<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-102\">\n<p>\u904e\u5270\u306a\u4f8b\u5916\u51e6\u7406\u306f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-103\">\n<p>\u60aa\u3044\u4f8b\uff1a<\/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=\"\">try {\n    int result = 10 \/ 2;\n    System.out.println(result);\n} catch (ArithmeticException e) {\n    System.out.println(\"0\u9664\u7b97\u304c\u767a\u751f\u3057\u307e\u3057\u305f\");\n}<\/pre>\n\n\n<div id=\"sgb-css-id-104\">\n<p>\u826f\u3044\u4f8b\uff1a<\/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 result = 10 \/ 2;\nSystem.out.println(result);<\/pre>\n\n\n<div id=\"sgb-css-id-108\">\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\">\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-105\">\n<li>\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u4f4e\u3044\u5834\u5408\u306f\u3001\u4f8b\u5916\u51e6\u7406\u3092\u7701\u7565\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-106\">\n<li>\u6b63\u5e38\u7cfb\u3068\u7570\u5e38\u7cfb\u3092\u660e\u78ba\u306b\u533a\u5225\u3057\u3001\u9069\u5207\u306a\u7c92\u5ea6\u3067\u4f8b\u5916\u51e6\u7406\u3092\u884c\u3046<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-107\">\n<li>\u5171\u901a\u306e\u4f8b\u5916\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u306f\u3001\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9\u3084\u30a2\u30b9\u30da\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff08AOP\uff09\u3092\u5229\u7528\u3057\u3066\u96c6\u7d04\u3059\u308b<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-109\">\n<h3 class=\"wp-block-heading\" id=\"i-22\">5.3 \u4e0d\u9069\u5207\u306a\u4f8b\u5916\u306e\u4f7f\u7528\uff1a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u4f8b\u5916\u3067\u5236\u5fa1\u3059\u308b\u8aa4\u308a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-110\">\n<p>\u4f8b\u5916\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30d5\u30ed\u30fc\u5236\u5fa1\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3001\u53ef\u8aad\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4e21\u9762\u3067\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-111\">\n<p>\u60aa\u3044\u4f8b\uff1a<\/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=\"\">public void processUser(User user) {\n    try {\n        if (user == null) {\n            throw new NullPointerException(\"\u30e6\u30fc\u30b6\u30fc\u304cnull\u3067\u3059\");\n        }\n        \/\/ \u30e6\u30fc\u30b6\u30fc\u51e6\u7406\n    } catch (NullPointerException e) {\n        System.out.println(e.getMessage());\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-112\">\n<p>\u826f\u3044\u4f8b\uff1a<\/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=\"\">public void processUser(User user) {\n    if (user == null) {\n        System.out.println(\"\u30e6\u30fc\u30b6\u30fc\u304cnull\u3067\u3059\");\n        return;\n    }\n    \/\/ \u30e6\u30fc\u30b6\u30fc\u51e6\u7406\n}<\/pre>\n\n\n<div id=\"sgb-css-id-116\">\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\">\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-113\">\n<li>\u901a\u5e38\u306e\u5236\u5fa1\u69cb\u9020\uff08if-else\u6587\u306a\u3069\uff09\u3092\u4f7f\u7528\u3057\u3066\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u8868\u73fe\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-114\">\n<li>Optional\u30af\u30e9\u30b9\u3084\u623b\u308a\u5024\u3067\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u8868\u73fe\u3092\u6d3b\u7528\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-115\">\n<li>\u4f8b\u5916\u306f\u771f\u306b\u7570\u5e38\u306a\u72b6\u6cc1\u306b\u306e\u307f\u4f7f\u7528\u3057\u3001\u4e88\u60f3\u3055\u308c\u308b\u72b6\u6cc1\u306b\u306f\u4f7f\u7528\u3057\u306a\u3044<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<p>\u3053\u308c\u3089\u306e\u843d\u3068\u3057\u7a74\u3092\u907f\u3051\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u5916\u51e6\u7406\u306f\u3001\u30c1\u30fc\u30e0\u5185\u3067\u8a2d\u8a08\u6307\u91dd\u3092\u5171\u6709\u3057\u3001\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u6ce8\u610f\u6df1\u304f\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u307e\u3067\u306b\u5b66\u3093\u3060\u5185\u5bb9\u3092\u7dcf\u62ec\u3057\u3001\u52b9\u679c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-118\">\n<h2 class=\"wp-block-heading\" id=\"i-23\">6. \u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u3067\u5b9f\u73fe\u3059\u308b\u5805\u7262\u306aJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-119\">\n<p>\u3053\u308c\u307e\u3067\u5b66\u3093\u3067\u304d\u305f\u4f8b\u5916\u51e6\u7406\u306e\u77e5\u8b58\u3092\u5b9f\u8df5\u306b\u79fb\u3057\u3001\u5805\u7262\u306aJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-120\">\n<h3 class=\"wp-block-heading\" id=\"i-24\">6.1 \u4f8b\u5916\u51e6\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a5\u3064\u306e\u9ec4\u91d1\u5f8b<\/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\">\u4f8b\u5916\u51e6\u7406\u306e\u307e\u3068\u3081<\/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 is-style-sango-list-simple\">\n<li><strong>\u5177\u4f53\u7684\u306a\u4f8b\u5916\u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3001\u9069\u5207\u306b\u51e6\u7406\u3059\u308b\u3053\u3068<\/strong><br>\u6c4e\u7528\u7684\u306aException\u3067\u306f\u306a\u304f\u3001\u3088\u308a\u5177\u4f53\u7684\u306a\u4f8b\u5916\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n\n\n\n<li><strong>\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u6709\u7528\u306a\u60c5\u5831\u3092\u542b\u3081\u308b\u3053\u3068<\/strong><br>\u30c7\u30d0\u30c3\u30b0\u306b\u5f79\u7acb\u3064\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u3092\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u542b\u3081\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u89e3\u6c7a\u3092\u8fc5\u901f\u5316\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>try-with-resources\u3092\u4f7f\u7528\u3057\u3066\u30ea\u30bd\u30fc\u30b9\u3092\u78ba\u5b9f\u306b\u89e3\u653e\u3059\u308b\u3053\u3068<\/strong><br>Java 7\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305f\u3053\u306e\u69cb\u6587\u3092\u6d3b\u7528\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u30ea\u30fc\u30af\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f8b\u5916\u3092\u30ed\u30b0\u306b\u8a18\u9332\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u306b\u4f1d\u64ad\u3055\u305b\u308b\u3053\u3068<\/strong><br>\u9069\u5207\u306a\u30ed\u30b0\u8a18\u9332\u3068\u4f8b\u5916\u306e\u4f1d\u64ad\u306b\u3088\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u5065\u5168\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/li>\n\n\n<div id=\"sgb-css-id-121\">\n<li><strong>\u4f8b\u5916\u51e6\u7406\u3092\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306b\u542b\u3081\u308b\u3053\u3068<\/strong><br>JUnit\u306a\u3069\u3092\u4f7f\u7528\u3057\u3066\u3001\u4f8b\u5916\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u306e\u30c6\u30b9\u30c8\u3092\u5fd8\u308c\u305a\u306b\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-122\">\n<h3 class=\"wp-block-heading\" id=\"i-25\">6.2 \u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\uff1aJava\u4f8b\u5916\u51e6\u7406\u306e\u6700\u65b0\u30c8\u30ec\u30f3\u30c9\u3068\u30ea\u30bd\u30fc\u30b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-123\">\n<p>Java\u4f8b\u5916\u51e6\u7406\u306f\u5e38\u306b\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u65b0\u306e\u30c8\u30ec\u30f3\u30c9\u3068\u3057\u3066\u3001Project Loom\u306b\u3088\u308b\u8efd\u91cf\u30b9\u30ec\u30c3\u30c9\u3068\u69cb\u9020\u5316\u30b3\u30f3\u30ab\u30ec\u30f3\u30b7\u30fc\u3001Java 17\u4ee5\u964d\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u6d3b\u7528\u3057\u305f\u4f8b\u5916\u51e6\u7406\u3001\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u4f8b\u5916\u51e6\u7406\u306a\u3069\u304c\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-124\">\n<p>\u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\u306e\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-125\">\n<li>\u66f8\u7c4d\uff1aJoshua Bloch\u306e\u201dEffective Java\u201d<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-126\">\n<li>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\uff1aOracle Java Documentation\u3001Baeldung<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-127\">\n<li>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff1aStack Overflow\u3001Reddit r\/java<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-128\">\n<li>\u30aa\u30f3\u30e9\u30a4\u30f3\u30b3\u30fc\u30b9\uff1aCoursera\u3001Udemy<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-129\">\n<p>\u307e\u305f\u3001\u500b\u4eba\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u5b9f\u8df5\u3084\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3078\u306e\u8ca2\u732e\u3001\u7a4d\u6975\u7684\u306a\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3078\u306e\u53c2\u52a0\u3092\u901a\u3058\u3066\u3001\u5b9f\u8df5\u7684\u306a\u30b9\u30ad\u30eb\u3092\u78e8\u3044\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<p>\u5805\u7262\u306aJava\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u306f\u3001\u52b9\u679c\u7684\u306a\u4f8b\u5916\u51e6\u7406\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u3001\u65e5\u3005\u306e\u958b\u767a\u5b9f\u8df5\u3092\u901a\u3058\u3066\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u3066\u3044\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3042\u306a\u305f\u306eJava\u30b3\u30fc\u30c9\u306f\u3001\u4e88\u671f\u305b\u306c\u72b6\u6cc1\u306b\u9069\u5207\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u307e\u3059\u304b\uff1f\u5168\u65e5\u672c\u80fd\u7387\u9023\u76df\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u54c1\u8cea\u8abf\u67fb\u306b\u3088\u308b\u3068\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u969c\u5bb3\u306e\u7d0440%\u304c\u4e0d\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406\u306b\u8d77\u56e0\u3057\u3066\u3044\u308b\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001Developer\u306e\u8abf\u67fb &#8230; <\/p>\n","protected":false},"author":1,"featured_media":3080,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,74,66],"tags":[],"class_list":{"0":"post-201","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-java","8":"category-java-error-handling","9":"category-java-syntax"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=201"}],"version-history":[{"count":4,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/201\/revisions"}],"predecessor-version":[{"id":255,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/201\/revisions\/255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/media\/3080"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}