{"id":564,"date":"2024-11-12T11:17:46","date_gmt":"2024-11-12T02:17:46","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=564"},"modified":"2025-03-24T08:53:03","modified_gmt":"2025-03-23T23:53:03","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91java%e3%81%ae%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e3%83%a9%e3%82%a4%e3%83%b3%e5%bc%95%e6%95%b0%e3%82%92%e4%bd%bf%e3%81%84%e3%81%93","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=564","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011Java\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u4f7f\u3044\u3053\u306a\u305912\u306e\u5fc5\u9808\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\">\u306f\u3058\u3081\u306b<\/a>  <\/li>  <li>    <a href=\"#i-1\">\uff11\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-2\">1.1 \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3068\u306f\u4f55\u304b\uff1f\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308b\u89e3\u8aac<\/a>      <\/li>      <li>        <a href=\"#i-3\">1.2 main\u30e1\u30bd\u30c3\u30c9\u306eString[] args\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5f79\u5272<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-4\">1.3 \u5f15\u6570\u306e\u53d6\u5f97\u65b9\u6cd5\u3068\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-5\">\uff12\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-6\">2.1 \u5f15\u6570\u306e\u578b\u5909\u63db\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-7\">2.2 \u8907\u6570\u306e\u5f15\u6570\u3092\u6271\u3046\u52b9\u7387\u7684\u306a\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">2.3 \u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">\uff13\uff0e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">3.1 ArrayIndexOutOfBoundsException\u306e\u9069\u5207\u306a\u51e6\u7406\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-11\">3.2 NumberFormatException\u3078\u306e\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">3.3 \u5f15\u6570\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">\uff14\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">4.1 \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u6307\u5b9a\u3067\u306e\u6d3b\u7528\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-15\">4.2 \u30d7\u30ed\u30b0\u30e9\u30e0\u30e2\u30fc\u30c9\u5207\u66ff\u3067\u306e\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-16\">4.3 \u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-17\">\uff15\uff0e\u767a\u5c55\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3068\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-18\">5.1 Apache Commons\u3092\u4f7f\u7528\u3057\u305f\u5f15\u6570\u30d1\u30fc\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-19\">5.2 \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-20\">5.3 \u30c6\u30b9\u30c8\u6642\u306e\u5f15\u6570\u30e2\u30c3\u30af\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-21\">\u307e\u3068\u3081\uff1a\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u6d3b\u7528\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/a>  <\/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\">\u306f\u3058\u3081\u306b<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-2\">\n<p>Java\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u6642\u306b\u5916\u90e8\u304b\u3089\u5024\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u67d4\u8edf\u6027\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u3001\u3088\u308a\u4f7f\u3044\u3084\u3059\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-3\">\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u307e\u3067\u3001\u73fe\u5834\u3067\u4f7f\u3048\u308b12\u306e\u5fc5\u9808\u30c6\u30af\u30cb\u30c3\u30af\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\u521d\u5fc3\u8005\u306e\u65b9\u304b\u3089\u7d4c\u9a13\u8c4a\u5bcc\u306a\u958b\u767a\u8005\u307e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u30ec\u30d9\u30eb\u306b\u5fdc\u3058\u3066\u5fc5\u8981\u306a\u77e5\u8b58\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-8\">\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\">\u672c\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>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u4ed5\u7d44\u307f<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-5\">\n<li>\u5b9f\u8df5\u7684\u306a\u5f15\u6570\u51e6\u7406\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-6\">\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\n<li>\u5b9f\u52d9\u3067\u306e\u5177\u4f53\u7684\u306a\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/li>\n<\/div>\n\n\n<li>\u767a\u5c55\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-12\">\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\">\u5fc5\u8981\u306a\u524d\u63d0\u77e5\u8b58<\/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-9\">\n<li>Java\u306e\u57fa\u672c\u6587\u6cd5<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<li>\u914d\u5217\u306e\u6271\u3044\u65b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\n<li>\u4f8b\u5916\u51e6\u7406\u306e\u57fa\u790e<\/li>\n<\/div>\n\n\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u57fa\u672c\u6982\u5ff5<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-13\">\n<p>\u305d\u308c\u3067\u306f\u3001\u5177\u4f53\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u306e\u89e3\u8aac\u306b\u5165\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<h2 class=\"wp-block-heading\" id=\"i-1\">\uff11\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-15\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">1.1 \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3068\u306f\u4f55\u304b\uff1f\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308b\u89e3\u8aac<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-16\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\uff08Command Line Arguments\uff09\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8d77\u52d5\u3059\u308b\u969b\u306b\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u5f15\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u52d5\u4f5c\u3092\u3088\u308a\u67d4\u8edf\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-17\">\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066Java\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u969b\u306b\u5f15\u6570\u3092\u6e21\u3059\u3053\u3068\u304c\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=\"\">java MyProgram argument1 argument2 argument3<\/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\">\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u4e3b\u306a\u7279\u5fb4<\/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-18\">\n<li>\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u6642\u306b\u5916\u90e8\u304b\u3089\u5024\u3092\u6e21\u305b\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-19\">\n<li>\u30b9\u30da\u30fc\u30b9\u3067\u533a\u5207\u3063\u3066\u8907\u6570\u306e\u5f15\u6570\u3092\u6307\u5b9a\u53ef\u80fd<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-20\">\n<li>\u6587\u5b57\u5217\u3068\u3057\u3066\u6e21\u3055\u308c\u308b<\/li>\n<\/div>\n\n\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b90\u304b\u3089\u9806\u756a\u306b\u683c\u7d0d\u3055\u308c\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-21\">\n<h3 class=\"wp-block-heading\" id=\"i-3\">1.2 main\u30e1\u30bd\u30c3\u30c9\u306eString[] args\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5f79\u5272<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<p>Java\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b<code>main<\/code>\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u3001\u5fc5\u305a<code>String[] args<\/code>\u3068\u3044\u3046\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\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 class CommandLineDemo {\n    public static void main(String[] args) {\n        \/\/ args\u306b\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u304c\u914d\u5217\u3068\u3057\u3066\u683c\u7d0d\u3055\u308c\u308b\n        System.out.println(\"\u53d7\u3051\u53d6\u3063\u305f\u5f15\u6570\u306e\u6570: \" + args.length);\n    }\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\"><code>String[] args<\/code>\u306e\u91cd\u8981\u306a\u30dd\u30a4\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-23\">\n<li>\u914d\u5217\u306e\u578b\u304c<code>String<\/code>\u3067\u3042\u308b\u7406\u7531\uff1a\u3059\u3079\u3066\u306e\u5f15\u6570\u306f\u6587\u5b57\u5217\u3068\u3057\u3066\u6e21\u3055\u308c\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-24\">\n<li>\u914d\u5217\u306e\u30b5\u30a4\u30ba\uff1a\u6e21\u3055\u308c\u305f\u5f15\u6570\u306e\u6570\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u6c7a\u5b9a<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-25\">\n<li>\u5f15\u6570\u304c\u6e21\u3055\u308c\u306a\u3044\u5834\u5408\uff1a\u7a7a\u306e\u914d\u5217\uff08length = 0\uff09\u304c\u6e21\u3055\u308c\u308b<\/li>\n<\/div>\n\n\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30a2\u30af\u30bb\u30b9\uff1a\u901a\u5e38\u306e\u914d\u5217\u3068\u540c\u69d8\u306b<code>args[0]<\/code>\u306e\u3088\u3046\u306b\u4f7f\u7528<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-26\">\n<h3 class=\"wp-block-heading\" id=\"i-4\">1.3 \u5f15\u6570\u306e\u53d6\u5f97\u65b9\u6cd5\u3068\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-27\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u5b9f\u969b\u306b\u4f7f\u7528\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\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=\"\">public class ArgumentExample {\n    public static void main(String[] args) {\n        \/\/ \u5f15\u6570\u306e\u6570\u3092\u30c1\u30a7\u30c3\u30af\n        if (args.length == 0) {\n            System.out.println(\"\u5f15\u6570\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\");\n            return;\n        }\n\n        \/\/ \u5404\u5f15\u6570\u3092\u51fa\u529b\n        for (int i = 0; i &lt; args.length; i++) {\n            System.out.printf(\"\u5f15\u6570%d: %s%n\", i, args[i]);\n        }\n\n        \/\/ \u7279\u5b9a\u306e\u5f15\u6570\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\u4f8b\n        if (args.length &gt;= 2) {\n            String name = args[0];    \/\/ 1\u756a\u76ee\u306e\u5f15\u6570\n            String age = args[1];     \/\/ 2\u756a\u76ee\u306e\u5f15\u6570\n            System.out.printf(\"\u540d\u524d: %s, \u5e74\u9f62: %s%n\", name, age);\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-28\">\n<p>\u57fa\u672c\u7684\u306a\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3\uff1a<\/p>\n<\/div>\n\n<div id=\"id-43262639-611a-45f9-ad50-4f77d021fe44\"><div id=\"sgb-css-id-29\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d1\u30bf\u30fc\u30f3<\/th><th>\u8aac\u660e<\/th><th>\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u5f15\u6570\u306e\u5b58\u5728\u78ba\u8a8d<\/td><td><code>args.length<\/code>\u3092\u4f7f\u7528\u3057\u3066\u5f15\u6570\u306e\u6709\u7121\u3092\u30c1\u30a7\u30c3\u30af<\/td><td><code>if (args.length &gt; 0)<\/code><\/td><\/tr><tr><td>\u7279\u5b9a\u4f4d\u7f6e\u306e\u5f15\u6570\u53d6\u5f97<\/td><td>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6307\u5b9a\u3057\u3066\u53d6\u5f97<\/td><td><code>args[0]<\/code><\/td><\/tr><tr><td>\u5168\u5f15\u6570\u306e\u51e6\u7406<\/td><td>for\u30eb\u30fc\u30d7\u3084Stream\u3092\u4f7f\u7528\u3057\u3066\u51e6\u7406<\/td><td><code>Arrays.stream(args).forEach(...)<\/code><\/td><\/tr><tr><td>\u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570<\/td><td>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u51e6\u7406<\/td><td><code>args.length &gt; 0 ? args[0] : \"default\"<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-33\">\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\u7528\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<ol class=\"wp-block-list\"><div id=\"sgb-css-id-30\">\n<li>\u914d\u5217\u306e\u5883\u754c\u30c1\u30a7\u30c3\u30af\u3092\u5fc5\u305a\u884c\u3046<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-31\">\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u578b\u5909\u63db\u3092\u884c\u3046<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-32\">\n<li>\u4e0d\u6b63\u306a\u5165\u529b\u306b\u5bfe\u3059\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u5f15\u6570\u306e\u8aac\u660e\u3084\u30d8\u30eb\u30d7\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u7528\u610f\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-34\">\n<p>\u3053\u306e\u57fa\u790e\u77e5\u8b58\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-35\">\n<h2 class=\"wp-block-heading\" id=\"i-5\">\uff12\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<h3 class=\"wp-block-heading\" id=\"i-6\">2.1 \u5f15\u6570\u306e\u578b\u5909\u63db\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-37\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306f\u6587\u5b57\u5217\u3068\u3057\u3066\u6e21\u3055\u308c\u308b\u305f\u3081\u3001\u6570\u5024\u3084\u305d\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u578b\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u9069\u5207\u306a\u578b\u5909\u63db\u304c\u5fc5\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u578b\u5909\u63db\u30c6\u30af\u30cb\u30c3\u30af\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=\"\">public class ArgumentConverter {\n    public static void main(String[] args) {\n        if (args.length &lt; 4) {\n            System.out.println(\"\u4f7f\u7528\u6cd5: java ArgumentConverter &lt;\u6574\u6570&gt; &lt;\u5c0f\u6570&gt; &lt;\u771f\u507d\u5024&gt; &lt;\u6587\u5b57\u5217&gt;\");\n            return;\n        }\n\n        try {\n            \/\/ \u6574\u6570\u3078\u306e\u5909\u63db\n            int intValue = Integer.parseInt(args[0]);\n            \/\/ \u5c0f\u6570\u3078\u306e\u5909\u63db\n            double doubleValue = Double.parseDouble(args[1]);\n            \/\/ \u771f\u507d\u5024\u3078\u306e\u5909\u63db\n            boolean boolValue = Boolean.parseBoolean(args[2]);\n            \/\/ \u6587\u5b57\u5217\u306f\u305d\u306e\u307e\u307e\u4f7f\u7528\n            String stringValue = args[3];\n\n            \/\/ \u5909\u63db\u7d50\u679c\u306e\u51fa\u529b\n            System.out.printf(\"\u6574\u6570: %d\uff08%s\uff09%n\", intValue, intValue.getClass().getSimpleName());\n            System.out.printf(\"\u5c0f\u6570: %.2f\uff08%s\uff09%n\", doubleValue, ((Double)doubleValue).getClass().getSimpleName());\n            System.out.printf(\"\u771f\u507d\u5024: %b\uff08%s\uff09%n\", boolValue, ((Boolean)boolValue).getClass().getSimpleName());\n            System.out.printf(\"\u6587\u5b57\u5217: %s\uff08%s\uff09%n\", stringValue, stringValue.getClass().getSimpleName());\n        } catch (NumberFormatException e) {\n            System.out.println(\"\u6570\u5024\u306e\u5909\u63db\u306b\u5931\u6557\u3057\u307e\u3057\u305f: \" + e.getMessage());\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-38\">\n<p>\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u578b\u5909\u63db\u30e1\u30bd\u30c3\u30c9\uff1a<\/p>\n<\/div>\n\n<div id=\"id-cf3d1373-13d0-4f67-b29d-7b71faf351d8\"><div id=\"sgb-css-id-39\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30c7\u30fc\u30bf\u578b<\/th><th>\u5909\u63db\u30e1\u30bd\u30c3\u30c9<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u6574\u6570<\/td><td><code>Integer.parseInt()<\/code><\/td><td><code>int value = Integer.parseInt(\"123\")<\/code><\/td><\/tr><tr><td>\u9577\u6574\u6570<\/td><td><code>Long.parseLong()<\/code><\/td><td><code>long value = Long.parseLong(\"123456789\")<\/code><\/td><\/tr><tr><td>\u5c0f\u6570<\/td><td><code>Double.parseDouble()<\/code><\/td><td><code>double value = Double.parseDouble(\"123.45\")<\/code><\/td><\/tr><tr><td>\u771f\u507d\u5024<\/td><td><code>Boolean.parseBoolean()<\/code><\/td><td><code>boolean value = Boolean.parseBoolean(\"true\")<\/code><\/td><\/tr><tr><td>\u6587\u5b57<\/td><td><code>charAt(0)<\/code><\/td><td><code>char value = args[0].charAt(0)<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-40\">\n<h3 class=\"wp-block-heading\" id=\"i-7\">2.2 \u8907\u6570\u306e\u5f15\u6570\u3092\u6271\u3046\u52b9\u7387\u7684\u306a\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-41\">\n<p>\u5b9f\u8df5\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u591a\u6570\u306e\u5f15\u6570\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u8907\u6570\u5f15\u6570\u3092\u6271\u3046\u305f\u3081\u306e\u52b9\u679c\u7684\u306a\u65b9\u6cd5\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=\"\">import java.util.Arrays;\nimport java.util.List;\nimport java.util.stream.Collectors;\n\npublic class MultipleArgumentsHandler {\n    public static void main(String[] args) {\n        \/\/ Stream API\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\n        List&lt;String&gt; argList = Arrays.asList(args);\n\n        \/\/ \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3068\u51e6\u7406\n        List&lt;String&gt; filteredArgs = argList.stream()\n            .filter(arg -&gt; arg.startsWith(\"--\"))  \/\/ \u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\n            .collect(Collectors.toList());\n\n        \/\/ \u53ef\u5909\u9577\u5f15\u6570\u3068\u3057\u3066\u306e\u51e6\u7406\n        processVariableArgs(args);\n\n        \/\/ \u5f15\u6570\u306e\u30b0\u30eb\u30fc\u30d7\u5316\uff082\u3064\u305a\u3064\uff09\n        for (int i = 0; i &lt; args.length - 1; i += 2) {\n            String key = args[i];\n            String value = args[i + 1];\n            System.out.printf(\"\u30ad\u30fc: %s, \u5024: %s%n\", key, value);\n        }\n    }\n\n    \/\/ \u53ef\u5909\u9577\u5f15\u6570\u3092\u4f7f\u7528\u3057\u305f\u30e1\u30bd\u30c3\u30c9\n    private static void processVariableArgs(String... args) {\n        for (String arg : args) {\n            System.out.println(\"\u51e6\u7406: \" + arg);\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-42\">\n<h3 class=\"wp-block-heading\" id=\"i-8\">2.3 \u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-43\">\n<p>\u5b9f\u7528\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\uff08\u30d5\u30e9\u30b0\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u3092\u5b9f\u88c5\u3059\u308b\u52b9\u679c\u7684\u306a\u65b9\u6cd5\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=\"\">import java.util.HashMap;\nimport java.util.Map;\n\npublic class OptionArgumentHandler {\n    public static void main(String[] args) {\n        \/\/ \u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u305d\u306e\u5024\u3092\u683c\u7d0d\u3059\u308b\u30de\u30c3\u30d7\n        Map&lt;String, String&gt; options = new HashMap&lt;&gt;();\n\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a\n        String outputFormat = \"text\";  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306f\"text\"\n        boolean verbose = false;       \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306ffalse\n\n        \/\/ \u5f15\u6570\u306e\u89e3\u6790\n        for (int i = 0; i &lt; args.length; i++) {\n            String arg = args[i];\n\n            switch (arg) {\n                case \"--format\":\n                    if (i + 1 &lt; args.length) {\n                        outputFormat = args[++i];\n                    }\n                    break;\n\n                case \"--verbose\":\n                    verbose = true;\n                    break;\n\n                case \"--help\":\n                    printHelp();\n                    return;\n\n                default:\n                    if (arg.startsWith(\"--\")) {\n                        if (i + 1 &lt; args.length) {\n                            options.put(arg.substring(2), args[++i]);\n                        }\n                    }\n                    break;\n            }\n        }\n\n        \/\/ \u89e3\u6790\u7d50\u679c\u306e\u4f7f\u7528\n        System.out.println(\"\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8: \" + outputFormat);\n        System.out.println(\"\u8a73\u7d30\u30e2\u30fc\u30c9: \" + verbose);\n        System.out.println(\"\u305d\u306e\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3: \" + options);\n    }\n\n    private static void printHelp() {\n        System.out.println(\"\u4f7f\u7528\u6cd5: java OptionArgumentHandler [options]\");\n        System.out.println(\"\u30aa\u30d7\u30b7\u30e7\u30f3:\");\n        System.out.println(\"  --format &lt;format&gt;   \u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6307\u5b9a\uff08text\/json\/xml\uff09\");\n        System.out.println(\"  --verbose           \u8a73\u7d30\u30e2\u30fc\u30c9\u306e\u6709\u52b9\u5316\");\n        System.out.println(\"  --help              \u3053\u306e\u30d8\u30eb\u30d7\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8868\u793a\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-48\">\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\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-44\">\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-45\">\n<li>\u30d8\u30eb\u30d7\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u63d0\u4f9b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-46\">\n<li>\u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u306e\u691c\u8a3c<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-47\">\n<li>\u67d4\u8edf\u306a\u5f15\u6570\u5f62\u5f0f\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/div>\n\n\n<li>\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u5b9f\u88c5<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-49\">\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u4f7f\u3044\u3084\u3059\u3044\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-50\">\n<h2 class=\"wp-block-heading\" id=\"i-9\">\uff13\uff0e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-51\">\n<h3 class=\"wp-block-heading\" id=\"i-10\">3.1 ArrayIndexOutOfBoundsException\u306e\u9069\u5207\u306a\u51e6\u7406\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<p>\u914d\u5217\u306e\u5883\u754c\u5916\u30a2\u30af\u30bb\u30b9\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u6271\u3046\u969b\u306b\u3088\u304f\u767a\u751f\u3059\u308b\u554f\u984c\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u3053\u306e\u4f8b\u5916\u3092\u9069\u5207\u306b\u51e6\u7406\u3059\u308b\u65b9\u6cd5\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=\"\">public class ArgumentBoundsHandler {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u5fc5\u9808\u5f15\u6570\u306e\u6570\u3092\u5b9a\u7fa9\n            final int REQUIRED_ARGS = 2;\n\n            \/\/ \u5f15\u6570\u306e\u6570\u3092\u691c\u8a3c\n            if (args.length &lt; REQUIRED_ARGS) {\n                throw new IllegalArgumentException(\n                    String.format(\"\u5f15\u6570\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059\u3002%d\u500b\u306e\u5f15\u6570\u304c\u5fc5\u8981\u3067\u3059\u3002\", REQUIRED_ARGS)\n                );\n            }\n\n            \/\/ \u5b89\u5168\u306a\u5f15\u6570\u53d6\u5f97\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\n            String firstArg = getArgSafely(args, 0);\n            String secondArg = getArgSafely(args, 1);\n\n            \/\/ \u5f15\u6570\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\n            processArguments(firstArg, secondArg);\n\n        } catch (IllegalArgumentException e) {\n            System.err.println(\"\u5f15\u6570\u30a8\u30e9\u30fc: \" + e.getMessage());\n            printUsage();\n            System.exit(1);\n        }\n    }\n\n    \/\/ \u5b89\u5168\u306b\u5f15\u6570\u3092\u53d6\u5f97\u3059\u308b\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9\n    private static String getArgSafely(String[] args, int index) {\n        if (index &lt; 0 || index &gt;= args.length) {\n            throw new IllegalArgumentException(\n                String.format(\"\u30a4\u30f3\u30c7\u30c3\u30af\u30b9 %d \u306e\u5f15\u6570\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\", index)\n            );\n        }\n        return args[index];\n    }\n\n    private static void processArguments(String arg1, String arg2) {\n        System.out.printf(\"\u5f15\u65701: %s, \u5f15\u65702: %s%n\", arg1, arg2);\n    }\n\n    private static void printUsage() {\n        System.out.println(\"\u4f7f\u7528\u6cd5: java ArgumentBoundsHandler &lt;arg1&gt; &lt;arg2&gt;\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-53\">\n<p>\u5883\u754c\u30c1\u30a7\u30c3\u30af\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n<\/div>\n\n<div id=\"id-97df7bd4-a339-4e86-9956-bf10c5f86781\"><div id=\"sgb-css-id-54\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u5b9f\u8df5\u9805\u76ee<\/th><th>\u8aac\u660e<\/th><th>\u5b9f\u88c5\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u4e8b\u524d\u30c1\u30a7\u30c3\u30af<\/td><td>\u51e6\u7406\u524d\u306b\u5f15\u6570\u306e\u6570\u3092\u78ba\u8a8d<\/td><td><code>if (args.length &lt; required)<\/code><\/td><\/tr><tr><td>\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30e1\u30bd\u30c3\u30c9<\/td><td>\u5b89\u5168\u306a\u53d6\u5f97\u30e1\u30bd\u30c3\u30c9\u306e\u4f5c\u6210<\/td><td><code>getArgSafely()<\/code> \u30e1\u30bd\u30c3\u30c9<\/td><\/tr><tr><td>\u660e\u78ba\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/td><td>\u5177\u4f53\u7684\u306a\u554f\u984c\u3068\u89e3\u6c7a\u65b9\u6cd5\u3092\u793a\u3059<\/td><td><code>throw new IllegalArgumentException()<\/code><\/td><\/tr><tr><td>\u4f7f\u7528\u65b9\u6cd5\u306e\u8868\u793a<\/td><td>\u30a8\u30e9\u30fc\u6642\u306b\u30d8\u30eb\u30d7\u3092\u8868\u793a<\/td><td><code>printUsage()<\/code> \u30e1\u30bd\u30c3\u30c9<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-55\">\n<h3 class=\"wp-block-heading\" id=\"i-11\">3.2 NumberFormatException\u3078\u306e\u5bfe\u51e6\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-56\">\n<p>\u6570\u5024\u5909\u63db\u6642\u306e\u30a8\u30e9\u30fc\u306f\u975e\u5e38\u306b\u4e00\u822c\u7684\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u6570\u5024\u5909\u63db\u3092\u5b89\u5168\u306b\u884c\u3046\u305f\u3081\u306e\u5b9f\u88c5\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=\"\">public class NumberFormatHandler {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u6570\u5024\u5f15\u6570\u306e\u51e6\u7406\n            int value = parseIntSafely(args, 0, \"\u6570\u5024\u5f15\u6570\u304c\u5fc5\u8981\u3067\u3059\u3002\");\n            double rate = parseDoubleSafely(args, 1, \"\u30ec\u30fc\u30c8\u5024\u304c\u5fc5\u8981\u3067\u3059\u3002\");\n\n            \/\/ \u5024\u306e\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\n            validateNumberRange(value, 0, 100, \"\u5024\u306f0\u304b\u3089100\u306e\u9593\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\");\n            validateNumberRange(rate, 0.0, 1.0, \"\u30ec\u30fc\u30c8\u306f0.0\u304b\u30891.0\u306e\u9593\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\");\n\n            \/\/ \u51e6\u7406\u306e\u5b9f\u884c\n            System.out.printf(\"\u8a08\u7b97\u7d50\u679c: %.2f%n\", value * rate);\n\n        } catch (IllegalArgumentException e) {\n            System.err.println(\"\u5165\u529b\u30a8\u30e9\u30fc: \" + e.getMessage());\n            System.exit(1);\n        }\n    }\n\n    \/\/ \u6574\u6570\u306e\u5b89\u5168\u306a\u5909\u63db\n    private static int parseIntSafely(String[] args, int index, String errorMessage) {\n        if (index &gt;= args.length) {\n            throw new IllegalArgumentException(errorMessage);\n        }\n        try {\n            return Integer.parseInt(args[index]);\n        } catch (NumberFormatException e) {\n            throw new IllegalArgumentException(\n                String.format(\"'%s'\u306f\u6709\u52b9\u306a\u6574\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\", args[index])\n            );\n        }\n    }\n\n    \/\/ \u5c0f\u6570\u306e\u5b89\u5168\u306a\u5909\u63db\n    private static double parseDoubleSafely(String[] args, int index, String errorMessage) {\n        if (index &gt;= args.length) {\n            throw new IllegalArgumentException(errorMessage);\n        }\n        try {\n            return Double.parseDouble(args[index]);\n        } catch (NumberFormatException e) {\n            throw new IllegalArgumentException(\n                String.format(\"'%s'\u306f\u6709\u52b9\u306a\u5c0f\u6570\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\", args[index])\n            );\n        }\n    }\n\n    \/\/ \u6570\u5024\u7bc4\u56f2\u306e\u691c\u8a3c\n    private static &lt;T extends Comparable&lt;T&gt;&gt; void validateNumberRange(\n            T value, T min, T max, String errorMessage) {\n        if (value.compareTo(min) &lt; 0 || value.compareTo(max) &gt; 0) {\n            throw new IllegalArgumentException(errorMessage);\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-57\">\n<h3 class=\"wp-block-heading\" id=\"i-12\">3.3 \u5f15\u6570\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5\u4f8b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-58\">\n<p>\u8907\u96d1\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5f15\u6570\u306e\u7dcf\u5408\u7684\u306a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u4f53\u7cfb\u7684\u306a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5\u306e\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=\"\">public class ArgumentValidator {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\n            validateArguments(args);\n\n            \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u6e08\u307f\u306e\u5f15\u6570\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\n            processValidatedArguments(args);\n\n        } catch (ValidationException e) {\n            System.err.println(\"\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc: \" + e.getMessage());\n            printUsage();\n            System.exit(1);\n        }\n    }\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u30af\u30e9\u30b9\n    static class ValidationException extends Exception {\n        public ValidationException(String message) {\n            super(message);\n        }\n    }\n\n    \/\/ \u5f15\u6570\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n    private static void validateArguments(String[] args) throws ValidationException {\n        \/\/ 1. \u5f15\u6570\u306e\u6570\u306e\u30c1\u30a7\u30c3\u30af\n        if (args.length == 0) {\n            throw new ValidationException(\"\u5f15\u6570\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\");\n        }\n\n        \/\/ 2. \u5fc5\u9808\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30c1\u30a7\u30c3\u30af\n        boolean hasInputFile = false;\n        boolean hasOutputFormat = false;\n\n        for (int i = 0; i &lt; args.length; i++) {\n            switch (args[i]) {\n                case \"--input\":\n                    if (++i &lt; args.length) {\n                        validateFilePath(args[i]);\n                        hasInputFile = true;\n                    }\n                    break;\n                case \"--format\":\n                    if (++i &lt; args.length) {\n                        validateOutputFormat(args[i]);\n                        hasOutputFormat = true;\n                    }\n                    break;\n            }\n        }\n\n        \/\/ 3. \u5fc5\u9808\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5b58\u5728\u78ba\u8a8d\n        if (!hasInputFile) {\n            throw new ValidationException(\"\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\");\n        }\n        if (!hasOutputFormat) {\n            throw new ValidationException(\"\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\");\n        }\n    }\n\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n    private static void validateFilePath(String path) throws ValidationException {\n        if (path == null || path.trim().isEmpty()) {\n            throw new ValidationException(\"\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u304c\u7a7a\u3067\u3059\u3002\");\n        }\n        if (!path.endsWith(\".txt\") &amp;&amp; !path.endsWith(\".csv\")) {\n            throw new ValidationException(\"\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3067\u3059\u3002\");\n        }\n    }\n\n    \/\/ \u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\n    private static void validateOutputFormat(String format) throws ValidationException {\n        String[] validFormats = {\"json\", \"xml\", \"csv\"};\n        boolean isValid = false;\n        for (String validFormat : validFormats) {\n            if (validFormat.equals(format.toLowerCase())) {\n                isValid = true;\n                break;\n            }\n        }\n        if (!isValid) {\n            throw new ValidationException(\"\u7121\u52b9\u306a\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u3059\u3002\");\n        }\n    }\n\n    private static void processValidatedArguments(String[] args) {\n        \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u6e08\u307f\u306e\u5f15\u6570\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\n        System.out.println(\"\u5f15\u6570\u306e\u51e6\u7406\u3092\u5b9f\u884c\u4e2d...\");\n    }\n\n    private static void printUsage() {\n        System.out.println(\"\u4f7f\u7528\u6cd5: java ArgumentValidator --input &lt;file&gt; --format &lt;format&gt;\");\n        System.out.println(\"\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8: json, xml, csv\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-63\">\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\">\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/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-59\">\n<li>\u30ab\u30b9\u30bf\u30e0\u4f8b\u5916\u306e\u4f7f\u7528<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-60\">\n<li>\u968e\u5c64\u7684\u306a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u51e6\u7406<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\n<li>\u660e\u78ba\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-62\">\n<li>\u4f7f\u7528\u65b9\u6cd5\u306e\u63d0\u793a<\/li>\n<\/div>\n\n\n<li>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u539f\u5247\u306e\u9069\u7528<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-64\">\n<p>\u3053\u308c\u3089\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u624b\u6cd5\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-65\">\n<h2 class=\"wp-block-heading\" id=\"i-13\">\uff14\uff0e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-66\">\n<h3 class=\"wp-block-heading\" id=\"i-14\">4.1 \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u6307\u5b9a\u3067\u306e\u6d3b\u7528\u4f8b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-67\">\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u3092\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3068\u3057\u3066\u53d7\u3051\u53d6\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u67d4\u8edf\u306a\u8a2d\u5b9a\u7ba1\u7406\u304c\u53ef\u80fd\u306b\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=\"\">import java.io.FileInputStream;\nimport java.io.IOException;\nimport java.util.Properties;\n\npublic class ConfigFileHandler {\n    public static void main(String[] args) {\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u8a2d\u5b9a\u5024\n        String configPath = \"config\/default.properties\";\n        Properties config = new Properties();\n\n        try {\n            \/\/ \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u304b\u3089config path\u3092\u53d6\u5f97\n            if (args.length &gt; 0 &amp;&amp; args[0].startsWith(\"--config=\")) {\n                configPath = args[0].substring(\"--config=\".length());\n            }\n\n            \/\/ \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f\n            try (FileInputStream fis = new FileInputStream(configPath)) {\n                config.load(fis);\n                System.out.println(\"\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3057\u305f: \" + configPath);\n\n                \/\/ \u8a2d\u5b9a\u5024\u306e\u4f7f\u7528\u4f8b\n                String dbUrl = config.getProperty(\"database.url\", \"jdbc:mysql:\/\/localhost:3306\/mydb\");\n                String dbUser = config.getProperty(\"database.user\", \"root\");\n                int maxConnections = Integer.parseInt(config.getProperty(\"database.maxConnections\", \"10\"));\n\n                \/\/ \u8a2d\u5b9a\u5024\u306e\u8868\u793a\n                System.out.println(\"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9URL: \" + dbUrl);\n                System.out.println(\"\u30e6\u30fc\u30b6\u30fc\u540d: \" + dbUser);\n                System.out.println(\"\u6700\u5927\u63a5\u7d9a\u6570: \" + maxConnections);\n\n            } catch (IOException e) {\n                System.err.println(\"\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f\u306b\u5931\u6557\u3057\u307e\u3057\u305f: \" + e.getMessage());\n                System.exit(1);\n            }\n\n        } catch (Exception e) {\n            System.err.println(\"\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f: \" + e.getMessage());\n            System.out.println(\"\u4f7f\u7528\u6cd5: java ConfigFileHandler [--config=&lt;\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9&gt;]\");\n            System.exit(1);\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-68\">\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\uff08config\/default.properties\uff09\u306e\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=\"\">database.url=jdbc:mysql:\/\/localhost:3306\/mydb\ndatabase.user=admin\ndatabase.password=secret\ndatabase.maxConnections=20<\/pre>\n\n\n<div id=\"sgb-css-id-69\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">4.2 \u30d7\u30ed\u30b0\u30e9\u30e0\u30e2\u30fc\u30c9\u5207\u66ff\u3067\u306e\u4f7f\u7528\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-70\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u52d5\u4f5c\u30e2\u30fc\u30c9\u3092\u5207\u308a\u66ff\u3048\u308b\u5b9f\u88c5\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=\"\">public class ApplicationModeHandler {\n    \/\/ \u5b9f\u884c\u30e2\u30fc\u30c9\u306e\u5217\u6319\u578b\n    private enum Mode {\n        DEVELOPMENT,\n        PRODUCTION,\n        TEST\n    }\n\n    public static void main(String[] args) {\n        try {\n            \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u30e2\u30fc\u30c9\n            Mode currentMode = Mode.DEVELOPMENT;\n            boolean verboseLogging = false;\n\n            \/\/ \u5f15\u6570\u306e\u89e3\u6790\n            for (String arg : args) {\n                if (arg.startsWith(\"--mode=\")) {\n                    String modeStr = arg.substring(\"--mode=\".length()).toUpperCase();\n                    try {\n                        currentMode = Mode.valueOf(modeStr);\n                    } catch (IllegalArgumentException e) {\n                        throw new IllegalArgumentException(\"\u7121\u52b9\u306a\u30e2\u30fc\u30c9: \" + modeStr);\n                    }\n                } else if (arg.equals(\"--verbose\")) {\n                    verboseLogging = true;\n                }\n            }\n\n            \/\/ \u30e2\u30fc\u30c9\u306b\u5fdc\u3058\u305f\u8a2d\u5b9a\u306e\u9069\u7528\n            configureProgramMode(currentMode, verboseLogging);\n\n            \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\n            runApplication(currentMode);\n\n        } catch (Exception e) {\n            System.err.println(\"\u30a8\u30e9\u30fc: \" + e.getMessage());\n            System.out.println(\"\u4f7f\u7528\u6cd5: java ApplicationModeHandler --mode=[DEVELOPMENT|PRODUCTION|TEST] [--verbose]\");\n            System.exit(1);\n        }\n    }\n\n    private static void configureProgramMode(Mode mode, boolean verbose) {\n        System.out.println(\"\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30e2\u30fc\u30c9: \" + mode);\n        System.out.println(\"\u8a73\u7d30\u30ed\u30b0: \" + (verbose ? \"\u6709\u52b9\" : \"\u7121\u52b9\"));\n\n        switch (mode) {\n            case DEVELOPMENT:\n                \/\/ \u958b\u767a\u30e2\u30fc\u30c9\u306e\u8a2d\u5b9a\n                System.setProperty(\"debug\", \"true\");\n                System.setProperty(\"cache.enabled\", \"false\");\n                break;\n\n            case PRODUCTION:\n                \/\/ \u672c\u756a\u30e2\u30fc\u30c9\u306e\u8a2d\u5b9a\n                System.setProperty(\"debug\", \"false\");\n                System.setProperty(\"cache.enabled\", \"true\");\n                break;\n\n            case TEST:\n                \/\/ \u30c6\u30b9\u30c8\u30e2\u30fc\u30c9\u306e\u8a2d\u5b9a\n                System.setProperty(\"debug\", \"true\");\n                System.setProperty(\"mock.enabled\", \"true\");\n                break;\n        }\n    }\n\n    private static void runApplication(Mode mode) {\n        System.out.println(mode + \" \u30e2\u30fc\u30c9\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u4e2d...\");\n        \/\/ \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u969b\u306e\u51e6\u7406\u3092\u3053\u3053\u306b\u8a18\u8ff0\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-71\">\n<h3 class=\"wp-block-heading\" id=\"i-16\">4.3 \u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-72\">\n<p>\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u6d3b\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=\"\">import java.io.*;\nimport java.time.LocalDate;\nimport java.time.format.DateTimeFormatter;\n\npublic class BatchProcessor {\n    public static void main(String[] args) {\n        try {\n            \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u8a2d\u5b9a\u3092\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u304b\u3089\u89e3\u6790\n            BatchConfig config = parseBatchConfig(args);\n\n            \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u884c\n            processData(config);\n\n        } catch (Exception e) {\n            System.err.println(\"\u30d0\u30c3\u30c1\u51e6\u7406\u30a8\u30e9\u30fc: \" + e.getMessage());\n            printUsage();\n            System.exit(1);\n        }\n    }\n\n    private static class BatchConfig {\n        String inputDir;\n        String outputDir;\n        LocalDate processDate;\n        boolean backupEnabled;\n        int batchSize;\n\n        public BatchConfig() {\n            \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u8a2d\u5b9a\n            this.inputDir = \"input\";\n            this.outputDir = \"output\";\n            this.processDate = LocalDate.now();\n            this.backupEnabled = false;\n            this.batchSize = 1000;\n        }\n    }\n\n    private static BatchConfig parseBatchConfig(String[] args) {\n        BatchConfig config = new BatchConfig();\n\n        for (int i = 0; i &lt; args.length; i++) {\n            String arg = args[i];\n\n            switch (arg) {\n                case \"--input-dir\":\n                    if (++i &lt; args.length) config.inputDir = args[i];\n                    break;\n\n                case \"--output-dir\":\n                    if (++i &lt; args.length) config.outputDir = args[i];\n                    break;\n\n                case \"--date\":\n                    if (++i &lt; args.length) {\n                        config.processDate = LocalDate.parse(args[i], \n                            DateTimeFormatter.ISO_DATE);\n                    }\n                    break;\n\n                case \"--backup\":\n                    config.backupEnabled = true;\n                    break;\n\n                case \"--batch-size\":\n                    if (++i &lt; args.length) {\n                        config.batchSize = Integer.parseInt(args[i]);\n                    }\n                    break;\n            }\n        }\n\n        validateConfig(config);\n        return config;\n    }\n\n    private static void validateConfig(BatchConfig config) {\n        File inputDir = new File(config.inputDir);\n        if (!inputDir.exists() || !inputDir.isDirectory()) {\n            throw new IllegalArgumentException(\"\u5165\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u5b58\u5728\u3057\u307e\u305b\u3093: \" + config.inputDir);\n        }\n\n        if (config.batchSize &lt;= 0) {\n            throw new IllegalArgumentException(\"\u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306f\u6b63\u306e\u6574\u6570\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\");\n        }\n    }\n\n    private static void processData(BatchConfig config) {\n        System.out.println(\"\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u958b\u59cb\u3057\u307e\u3059\");\n        System.out.println(\"\u5165\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea: \" + config.inputDir);\n        System.out.println(\"\u51fa\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea: \" + config.outputDir);\n        System.out.println(\"\u51e6\u7406\u65e5\u4ed8: \" + config.processDate);\n        System.out.println(\"\u30d0\u30c3\u30af\u30a2\u30c3\u30d7: \" + (config.backupEnabled ? \"\u6709\u52b9\" : \"\u7121\u52b9\"));\n        System.out.println(\"\u30d0\u30c3\u30c1\u30b5\u30a4\u30ba: \" + config.batchSize);\n\n        \/\/ \u3053\u3053\u306b\u5b9f\u969b\u306e\u30d0\u30c3\u30c1\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\n    }\n\n    private static void printUsage() {\n        System.out.println(\"\u4f7f\u7528\u6cd5: java BatchProcessor [options]\");\n        System.out.println(\"\u30aa\u30d7\u30b7\u30e7\u30f3:\");\n        System.out.println(\"  --input-dir &lt;dir&gt;   \u5165\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u30d1\u30b9\");\n        System.out.println(\"  --output-dir &lt;dir&gt;  \u51fa\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u30d1\u30b9\");\n        System.out.println(\"  --date &lt;YYYY-MM-DD&gt; \u51e6\u7406\u65e5\u4ed8\");\n        System.out.println(\"  --backup            \u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u6709\u52b9\u5316\");\n        System.out.println(\"  --batch-size &lt;num&gt;  \u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306e\u6307\u5b9a\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-73\">\n<p>\u4e3b\u8981\u306a\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3\u306e\u307e\u3068\u3081\uff1a<\/p>\n<\/div>\n\n<div id=\"id-2cd8f32c-638a-4d37-86d4-8abca2d02430\"><div id=\"sgb-css-id-74\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d1\u30bf\u30fc\u30f3<\/th><th>\u7528\u9014<\/th><th>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8<\/th><\/tr><\/thead><tbody><tr><td>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u6307\u5b9a<\/td><td>\u5916\u90e8\u8a2d\u5b9a\u306e\u67d4\u8edf\u306a\u5207\u308a\u66ff\u3048<\/td><td>\u30fb\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u63d0\u4f9b<br>\u30fb\u30d5\u30a1\u30a4\u30eb\u5b58\u5728\u78ba\u8a8d<br>\u30fb\u9069\u5207\u306a\u30a8\u30e9\u30fc\u51e6\u7406<\/td><\/tr><tr><td>\u30e2\u30fc\u30c9\u5207\u66ff<\/td><td>\u5b9f\u884c\u74b0\u5883\u306e\u5207\u308a\u66ff\u3048<\/td><td>\u30fb\u5217\u6319\u578b\u306e\u4f7f\u7528<br>\u30fb\u30e2\u30fc\u30c9\u5225\u306e\u8a2d\u5b9a\u9069\u7528<br>\u30fb\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>\u30d0\u30c3\u30c1\u51e6\u7406<\/td><td>\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u5236\u5fa1<\/td><td>\u30fb\u8a2d\u5b9a\u30af\u30e9\u30b9\u306e\u4f5c\u6210<br>\u30fb\u8907\u6570\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u7ba1\u7406<br>\u30fb\u8a73\u7d30\u306a\u30ed\u30b0\u51fa\u529b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-75\">\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-76\">\n<h2 class=\"wp-block-heading\" id=\"i-17\">\uff15\uff0e\u767a\u5c55\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3068\u6ce8\u610f\u70b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-77\">\n<h3 class=\"wp-block-heading\" id=\"i-18\">5.1 Apache Commons\u3092\u4f7f\u7528\u3057\u305f\u5f15\u6570\u30d1\u30fc\u30b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-78\">\n<p>Apache Commons CLI\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u305d\u306e\u5b9f\u88c5\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=\"\">import org.apache.commons.cli.*;\n\npublic class CommonsCLIExample {\n    public static void main(String[] args) {\n        \/\/ \u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5b9a\u7fa9\n        Options options = new Options();\n\n        \/\/ \u5fc5\u9808\u30aa\u30d7\u30b7\u30e7\u30f3\n        Option input = Option.builder(\"i\")\n                .longOpt(\"input\")\n                .hasArg()\n                .required()\n                .desc(\"\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\")\n                .build();\n\n        \/\/ \u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u306a\u5f15\u6570\n        Option output = Option.builder(\"o\")\n                .longOpt(\"output\")\n                .hasArg()\n                .desc(\"\u51fa\u529b\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\")\n                .build();\n\n        \/\/ \u30d5\u30e9\u30b0\u30aa\u30d7\u30b7\u30e7\u30f3\n        Option verbose = Option.builder(\"v\")\n                .longOpt(\"verbose\")\n                .desc(\"\u8a73\u7d30\u306a\u30ed\u30b0\u51fa\u529b\u306e\u6709\u52b9\u5316\")\n                .build();\n\n        \/\/ \u8907\u6570\u306e\u5024\u3092\u53d6\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\n        Option formats = Option.builder(\"f\")\n                .longOpt(\"formats\")\n                .hasArgs()\n                .desc(\"\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\uff08\u8907\u6570\u6307\u5b9a\u53ef\uff09\")\n                .valueSeparator(',')\n                .build();\n\n        options.addOption(input);\n        options.addOption(output);\n        options.addOption(verbose);\n        options.addOption(formats);\n\n        try {\n            \/\/ \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u306e\u89e3\u6790\n            CommandLineParser parser = new DefaultParser();\n            CommandLine cmd = parser.parse(options, args);\n\n            \/\/ \u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u53d6\u5f97\u3068\u4f7f\u7528\n            String inputPath = cmd.getOptionValue(\"input\");\n            String outputPath = cmd.getOptionValue(\"output\", \"output.txt\"); \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u6307\u5b9a\n            boolean isVerbose = cmd.hasOption(\"verbose\");\n            String[] outputFormats = cmd.getOptionValues(\"formats\");\n\n            \/\/ \u51e6\u7406\u306e\u5b9f\u884c\n            processWithOptions(inputPath, outputPath, isVerbose, outputFormats);\n\n        } catch (ParseException e) {\n            System.err.println(\"\u5f15\u6570\u306e\u89e3\u6790\u30a8\u30e9\u30fc: \" + e.getMessage());\n            \/\/ \u30d8\u30eb\u30d7\u60c5\u5831\u306e\u8868\u793a\n            HelpFormatter formatter = new HelpFormatter();\n            formatter.printHelp(\"CommonsCLIExample\", options, true);\n            System.exit(1);\n        }\n    }\n\n    private static void processWithOptions(\n            String input, String output, boolean verbose, String[] formats) {\n        System.out.println(\"\u5165\u529b\u30d5\u30a1\u30a4\u30eb: \" + input);\n        System.out.println(\"\u51fa\u529b\u30d5\u30a1\u30a4\u30eb: \" + output);\n        System.out.println(\"\u8a73\u7d30\u30ed\u30b0: \" + (verbose ? \"\u6709\u52b9\" : \"\u7121\u52b9\"));\n\n        if (formats != null) {\n            System.out.println(\"\u51fa\u529b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8:\");\n            for (String format : formats) {\n                System.out.println(\"- \" + format);\n            }\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-79\">\n<p>Apache Commons CLI\u306e\u4e3b\u306a\u7279\u5fb4\uff1a<\/p>\n<\/div>\n\n<div id=\"id-c794a824-136e-4571-8b39-68f230a913dd\"><div id=\"sgb-css-id-80\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u30aa\u30d7\u30b7\u30e7\u30f3\u30d3\u30eb\u30c0\u30fc<\/td><td>\u76f4\u611f\u7684\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u5b9a\u7fa9<\/td><td><code>Option.builder().longOpt().hasArg().build()<\/code><\/td><\/tr><tr><td>\u81ea\u52d5\u30d8\u30eb\u30d7\u751f\u6210<\/td><td>\u30d8\u30eb\u30d7\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u81ea\u52d5\u751f\u6210<\/td><td><code>HelpFormatter.printHelp()<\/code><\/td><\/tr><tr><td>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/td><td>\u5fc5\u9808\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30c1\u30a7\u30c3\u30af<\/td><td><code>Option.required()<\/code><\/td><\/tr><tr><td>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024<\/td><td>\u30aa\u30d7\u30b7\u30e7\u30f3\u5024\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a<\/td><td><code>cmd.getOptionValue(\"key\", \"default\")<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-81\">\n<h3 class=\"wp-block-heading\" id=\"i-19\">5.2 \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-82\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u3092\u6271\u3046\u969b\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u3064\u3044\u3066\u8aac\u660e\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=\"\">import java.nio.file.Path;\nimport java.nio.file.Paths;\nimport java.util.regex.Pattern;\n\npublic class SecureArgumentHandler {\n    \/\/ \u5b89\u5168\u306a\u6587\u5b57\u30d1\u30bf\u30fc\u30f3\u306e\u5b9a\u7fa9\n    private static final Pattern SAFE_STRING_PATTERN = \n        Pattern.compile(\"^[a-zA-Z0-9_\\\\-\\\\.]+$\");\n\n    public static void main(String[] args) {\n        try {\n            \/\/ \u5f15\u6570\u306e\u691c\u8a3c\u3068\u5b89\u5168\u306a\u51e6\u7406\n            processArgumentsSecurely(args);\n        } catch (SecurityException e) {\n            System.err.println(\"\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a8\u30e9\u30fc: \" + e.getMessage());\n            System.exit(1);\n        }\n    }\n\n    private static void processArgumentsSecurely(String[] args) {\n        for (String arg : args) {\n            \/\/ \u30b3\u30de\u30f3\u30c9\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\n            if (containsShellCharacters(arg)) {\n                throw new SecurityException(\"\u4e0d\u6b63\u306a\u6587\u5b57\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059: \" + arg);\n            }\n\n            \/\/ \u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u5bfe\u7b56\n            if (arg.startsWith(\"--file=\")) {\n                String filePath = arg.substring(\"--file=\".length());\n                validateFilePath(filePath);\n            }\n\n            \/\/ SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\n            if (arg.startsWith(\"--query=\")) {\n                String query = arg.substring(\"--query=\".length());\n                validateQueryString(query);\n            }\n        }\n    }\n\n    \/\/ \u30b7\u30a7\u30eb\u7279\u6b8a\u6587\u5b57\u306e\u30c1\u30a7\u30c3\u30af\n    private static boolean containsShellCharacters(String input) {\n        return input.contains(\"|\") || input.contains(\"&amp;\") || \n               input.contains(\";\") || input.contains(\"`\") ||\n               input.contains(\"$\") || input.contains(\"(\");\n    }\n\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306e\u691c\u8a3c\n    private static void validateFilePath(String filePath) {\n        try {\n            Path normalizedPath = Paths.get(filePath).normalize();\n            Path currentDir = Paths.get(\".\").toAbsolutePath();\n\n            if (!normalizedPath.toAbsolutePath()\n                    .startsWith(currentDir)) {\n                throw new SecurityException(\"\u8a31\u53ef\u3055\u308c\u3066\u3044\u306a\u3044\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u306e\u30a2\u30af\u30bb\u30b9\");\n            }\n        } catch (Exception e) {\n            throw new SecurityException(\"\u7121\u52b9\u306a\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9: \" + e.getMessage());\n        }\n    }\n\n    \/\/ \u30af\u30a8\u30ea\u6587\u5b57\u5217\u306e\u691c\u8a3c\n    private static void validateQueryString(String query) {\n        if (!SAFE_STRING_PATTERN.matcher(query).matches()) {\n            throw new SecurityException(\"\u4e0d\u6b63\u306a\u30af\u30a8\u30ea\u6587\u5b57\u5217\");\n        }\n    }\n\n    \/\/ \u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u306a\u51e6\u7406\n    private static void handleSensitiveData(String data) {\n        try {\n            \/\/ \u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u51e6\u7406\n            \/\/ ...\n            \/\/ \u51e6\u7406\u5f8c\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n            System.gc();  \/\/ \u6ce8\u610f: \u5b8c\u5168\u306a\u4fdd\u8a3c\u306f\u3042\u308a\u307e\u305b\u3093\n        } finally {\n            \/\/ \u5909\u6570\u306e\u660e\u793a\u7684\u306a\u30af\u30ea\u30a2\n            data = null;\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-83\">\n<h3 class=\"wp-block-heading\" id=\"i-20\">5.3 \u30c6\u30b9\u30c8\u6642\u306e\u5f15\u6570\u30e2\u30c3\u30af\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-84\">\n<p>JUnit\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5\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=\"\">import org.junit.jupiter.api.Test;\nimport org.junit.jupiter.api.BeforeEach;\nimport org.mockito.Mock;\nimport org.mockito.MockitoAnnotations;\nimport static org.mockito.Mockito.*;\nimport static org.junit.jupiter.api.Assertions.*;\n\npublic class ArgumentProcessorTest {\n    @Mock\n    private ArgumentParser mockParser;\n\n    private ArgumentProcessor processor;\n\n    @BeforeEach\n    void setUp() {\n        MockitoAnnotations.openMocks(this);\n        processor = new ArgumentProcessor(mockParser);\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\n    public static class ArgumentProcessor {\n        private final ArgumentParser parser;\n\n        public ArgumentProcessor(ArgumentParser parser) {\n            this.parser = parser;\n        }\n\n        public ProcessResult process(String[] args) {\n            if (args == null || args.length == 0) {\n                throw new IllegalArgumentException(\"\u5f15\u6570\u304c\u5fc5\u8981\u3067\u3059\");\n            }\n\n            return parser.parse(args);\n        }\n    }\n\n    \/\/ \u30d1\u30fc\u30b5\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\n    public interface ArgumentParser {\n        ProcessResult parse(String[] args);\n    }\n\n    \/\/ \u51e6\u7406\u7d50\u679c\u30af\u30e9\u30b9\n    public static class ProcessResult {\n        private final boolean success;\n        private final String message;\n\n        public ProcessResult(boolean success, String message) {\n            this.success = success;\n            this.message = message;\n        }\n\n        public boolean isSuccess() { return success; }\n        public String getMessage() { return message; }\n    }\n\n    @Test\n    void testValidArguments() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n        String[] args = {\"--input\", \"test.txt\"};\n        ProcessResult expectedResult = \n            new ProcessResult(true, \"\u6210\u529f\");\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(mockParser.parse(args))\n            .thenReturn(expectedResult);\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        ProcessResult result = processor.process(args);\n\n        \/\/ \u691c\u8a3c\n        assertTrue(result.isSuccess());\n        assertEquals(\"\u6210\u529f\", result.getMessage());\n        verify(mockParser).parse(args);\n    }\n\n    @Test\n    void testEmptyArguments() {\n        \/\/ \u7a7a\u306e\u5f15\u6570\u914d\u5217\u3067\u30c6\u30b9\u30c8\n        assertThrows(IllegalArgumentException.class, \n            () -&gt; processor.process(new String[0]));\n    }\n\n    @Test\n    void testNullArguments() {\n        \/\/ null\u5f15\u6570\u3067\u30c6\u30b9\u30c8\n        assertThrows(IllegalArgumentException.class, \n            () -&gt; processor.process(null));\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-85\">\n<p>\u30c6\u30b9\u30c8\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n<\/div>\n\n<div id=\"id-a6ec9307-912a-4bfe-8227-ca7eb4402d00\"><div id=\"sgb-css-id-86\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u9805\u76ee<\/th><th>\u8aac\u660e<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u4f9d\u5b58\u6027\u306e\u6ce8\u5165<\/td><td>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u306e\u5411\u4e0a<\/td><td>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>\u30e2\u30c3\u30af\u306e\u4f7f\u7528<\/td><td>\u5916\u90e8\u4f9d\u5b58\u306e\u30e2\u30c3\u30af\u5316<\/td><td>Mockito\u306e\u6d3b\u7528<\/td><\/tr><tr><td>\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9<\/td><td>\u5883\u754c\u5024\u306e\u30c6\u30b9\u30c8<\/td><td>null\u3001\u7a7a\u914d\u5217\u306e\u30c6\u30b9\u30c8<\/td><\/tr><tr><td>\u4f8b\u5916\u30c6\u30b9\u30c8<\/td><td>\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u691c\u8a3c<\/td><td>assertThrows\u306e\u4f7f\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-93\">\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\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30c6\u30b9\u30c8\u306e\u6ce8\u610f\u70b9\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\"><div id=\"sgb-css-id-87\">\n<li>\u5165\u529b\u5024\u306e\u53b3\u5bc6\u306a\u691c\u8a3c<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<li>\u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u5bfe\u7b56\u306e\u5b9f\u88c5<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-89\">\n<li>\u30b3\u30de\u30f3\u30c9\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-90\">\n<li>\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u9069\u5207\u306a\u51e6\u7406<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-91\">\n<li>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u5145\u5b9f<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-92\">\n<li>\u30e2\u30c3\u30af\u3092\u4f7f\u7528\u3057\u305f\u4f9d\u5b58\u6027\u306e\u5206\u96e2<\/li>\n<\/div>\n\n\n<li>\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u306e\u30ab\u30d0\u30ec\u30c3\u30b8<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-94\">\n<p>\u3053\u308c\u3089\u306e\u767a\u5c55\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-95\">\n<h2 class=\"wp-block-heading\" id=\"i-21\">\u307e\u3068\u3081\uff1a\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u6d3b\u7528\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-96\">\n<h4 class=\"wp-block-heading\" id=\"i-22\">1. \u672c\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305f\u5185\u5bb9\u306e\u632f\u308a\u8fd4\u308a<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-97\">\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Java\u306e\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306b\u95a2\u3059\u308b\u5305\u62ec\u7684\u306a\u89e3\u8aac\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u4e3b\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-98\">\n<p>\u30001. <strong>\u57fa\u790e\u77e5\u8b58<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-99\">\n<p>\u3000\u3000\u25cf \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5f15\u6570\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-100\">\n<p>\u3000\u3000\u25cf main\u30e1\u30bd\u30c3\u30c9\u3067\u306e\u5f15\u6570\u53d7\u3051\u53d6\u308a\u65b9<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-101\">\n<p>\u3000\u3000\u25cf \u57fa\u672c\u7684\u306a\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-102\">\n<p>\u30002. <strong>\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-103\">\n<p>\u3000\u3000\u25cf \u578b\u5909\u63db\u306e\u52b9\u7387\u7684\u306a\u65b9\u6cd5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-104\">\n<p>\u3000\u3000\u25cf \u8907\u6570\u5f15\u6570\u306e\u51e6\u7406<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-105\">\n<p>\u3000\u3000\u25cf \u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u306e\u5b9f\u88c5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-106\">\n<p>\u30003. <strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-107\">\n<p>\u3000\u3000\u25cf \u4e00\u822c\u7684\u306a\u4f8b\u5916\u306e\u9069\u5207\u306a\u51e6\u7406<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-108\">\n<p>\u3000\u3000\u25cf \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-109\">\n<p>\u3000\u3000\u25cf \u5805\u7262\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u5b9f\u73fe<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-110\">\n<p>\u30004. <strong>\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-111\">\n<p>\u3000\u3000\u25cf \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306e\u6307\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-112\">\n<p>\u3000\u3000\u25cf \u30d7\u30ed\u30b0\u30e9\u30e0\u30e2\u30fc\u30c9\u306e\u5207\u308a\u66ff\u3048<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-113\">\n<p>\u3000\u3000\u25cf \u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-114\">\n<p>\u30005. <strong>\u767a\u5c55\u7684\u306a\u5185\u5bb9<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-115\">\n<p>\u3000\u3000\u25cf Apache Commons\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-116\">\n<p>\u3000\u3000\u25cf \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<p>\u3000\u3000\u25cf \u30c6\u30b9\u30c8\u306e\u5b9f\u88c5\u65b9\u6cd5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-118\">\n<h4 class=\"wp-block-heading\" id=\"i-23\">2. \u5b9f\u8df5\u306b\u5411\u3051\u305f\u30a2\u30c9\u30d0\u30a4\u30b9<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-119\">\n<p>\u3000<strong>\u30b9\u30c6\u30c3\u30d7\u30a2\u30c3\u30d7\u306e\u65b9\u6cd5<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-120\">\n<p>\u30001. <strong>\u57fa\u672c\u304b\u3089\u5fdc\u7528\u3078<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-121\">\n<p>\u3000\u3000\u25cf \u307e\u305a\u306f\u5358\u7d14\u306a\u5f15\u6570\u51e6\u7406\u304b\u3089\u59cb\u3081\u308b<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-122\">\n<p>\u3000\u3000\u25cf \u5f90\u3005\u306b\u8907\u96d1\u306a\u51e6\u7406\u3092\u8ffd\u52a0<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-123\">\n<p>\u3000\u3000\u25cf \u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u6bb5\u968e\u7684\u306b\u5b9f\u88c5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-124\">\n<p>\u30002. <strong>\u8a2d\u8a08\u306e\u30dd\u30a4\u30f3\u30c8<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-125\">\n<p>\u3000\u3000\u25cf \u62e1\u5f35\u6027\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-126\">\n<p>\u3000\u3000\u25cf \u518d\u5229\u7528\u53ef\u80fd\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5316<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-127\">\n<p>\u3000\u3000\u25cf \u9069\u5207\u306a\u7c92\u5ea6\u3067\u306e\u5206\u5272<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-128\">\n<p>\u30003. <strong>\u54c1\u8cea\u5411\u4e0a\u306e\u305f\u3081\u306b<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-129\">\n<p>\u3000\u3000\u25cf \u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u306e\u4f5c\u6210<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-130\">\n<p>\u3000\u3000\u25cf \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u5b9f\u88c5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-131\">\n<p>\u3000\u3000\u25cf \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6574\u5099<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-132\">\n<h4 class=\"wp-block-heading\" id=\"i-24\">3. \u3088\u304f\u3042\u308b\u843d\u3068\u3057\u624b\u3068\u5bfe\u7b56<\/h4>\n<\/div>\n\n<div id=\"id-e37dac75-bbb2-45c8-a039-268d4bb80634\"><div id=\"sgb-css-id-133\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u843d\u3068\u3057\u7a74<\/th><th>\u5bfe\u7b56<\/th><\/tr><\/thead><tbody><tr><td>\u5f15\u6570\u306e\u691c\u8a3c\u4e0d\u8db3<\/td><td>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u5fb9\u5e95<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u4e0d\u5099<\/td><td>\u5305\u62ec\u7684\u306a\u4f8b\u5916\u51e6\u7406\u306e\u5b9f\u88c5<\/td><\/tr><tr><td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8003\u616e\u4e0d\u8db3<\/td><td>\u5165\u529b\u5024\u306e\u7121\u5bb3\u5316\u3068\u691c\u8a3c<\/td><\/tr><tr><td>\u30c6\u30b9\u30c8\u306e\u4e0d\u8db3<\/td><td>\u81ea\u52d5\u30c6\u30b9\u30c8\u306e\u4f5c\u6210\u3068\u5b9f\u884c<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-134\">\n<h4 class=\"wp-block-heading\" id=\"i-25\">4. \u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5411\u3051\u3066<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-135\">\n<p>\u30001. <strong>\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u65b9\u5411\u6027<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-136\">\n<p>\u3000\u3000\u25cf \u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u5b66\u7fd2<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-137\">\n<p>\u3000\u3000\u25cf \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u6df1\u6398\u308a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-138\">\n<p>\u3000\u3000\u25cf \u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\u306e\u5b9f\u8df5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-139\">\n<p>\u30002. <strong>\u5b9f\u8df5\u7684\u306a\u8ab2\u984c\u3078\u306e\u6311\u6226<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-140\">\n<p>\u3000\u3000\u25cf \u5c0f\u898f\u6a21\u306a\u30c4\u30fc\u30eb\u958b\u767a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-141\">\n<p>\u3000\u3000\u25cf \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-142\">\n<p>\u3000\u3000\u25cf \u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-143\">\n<p>\u30003. <strong>\u767a\u5c55\u7684\u306a\u30c8\u30d4\u30c3\u30af<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-144\">\n<p>\u3000\u3000\u25cf \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-145\">\n<p>\u3000\u3000\u25cf CI\/CD\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3067\u306e\u4f7f\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-146\">\n<p>\u3000\u3000\u25cf \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-147\">\n<h4 class=\"wp-block-heading\" id=\"i-26\">5. \u304a\u308f\u308a\u306b<\/h4>\n<\/div>\n\n<div 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