{"id":84946,"date":"2019-02-04T09:18:07","date_gmt":"2019-02-04T00:18:07","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=84946"},"modified":"2024-05-06T11:54:38","modified_gmt":"2024-05-06T02:54:38","slug":"%e3%80%90%e3%83%97%e3%83%ad%e3%81%8c%e8%a7%a3%e8%aa%ac%e3%80%91java%e9%85%8d%e5%88%97%e3%81%ae%e5%9f%ba%e7%a4%8e%e3%81%af%e3%81%93%e3%82%8c%e3%81%a7%e5%ae%8c%e7%92%a7%ef%bc%81%e4%be%bf%e5%88%a9","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/84946","title":{"rendered":"\u3010\u30d7\u30ed\u304c\u89e3\u8aac\u3011Java\u914d\u5217\u306e\u57fa\u790e\u306f\u3053\u308c\u3067\u5b8c\u74a7\uff01\u4fbf\u5229\u306a\u4f7f\u3044\u65b9\u3082\u591a\u6570\u7d39\u4ecb"},"content":{"rendered":"<p><div class=\"box_voice\"><br \/>\n<b>Java\u306e\u52c9\u5f37\u3092\u59cb\u3081\u305f\u3051\u3069\u3001\u914d\u5217\u306e\u4f7f\u3044\u65b9\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u30fb\u30fb\u30fb<br \/>\n\u914d\u5217\u306f\u3069\u306e\u3088\u3046\u306a\u7528\u9014\u3067\u4f7f\u3048\u3070\u3044\u3044\u306e\uff1f\u5909\u6570\u3068\u306e\u9055\u3044\u306f\u306a\u306b\uff1f<br \/>\n\u914d\u5217\u3092\u52b9\u7387\u3088\u304f\u899a\u3048\u305f\u3044\u3051\u3069\u4f55\u304b\u826f\u3044\u65b9\u6cd5\u306f\u306a\u3044\u304b\u306a\uff1f<\/b><br \/>\n<\/div><\/p>\n<p>Java\u306e\u52c9\u5f37\u3092\u59cb\u3081\u305f\u3070\u304b\u308a\u306e\u521d\u5b66\u8005\u304c\u3001\u6700\u521d\u306b\u3064\u307e\u3065\u304d\u3084\u3059\u3044\u306e\u304c\u914d\u5217\u3068\u8a00\u3048\u307e\u3059\u3002\u914d\u5217\u306e\u57fa\u672c\u306f\u7406\u89e3\u3067\u304d\u3066\u3082\u3001\u5b9f\u969b\u306e\u696d\u52d9\u3067\u306f\u914d\u5217\u3092\u99c6\u4f7f\u3057\u3066\u3055\u307e\u3056\u307e\u306a\u51e6\u7406\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001Java\u306e\u914d\u5217\u306b\u3064\u3044\u3066\u57fa\u790e\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u5b9f\u52d9\u3067\u3088\u304f\u4f7f\u3046\u5b9f\u88c5\u65b9\u6cd5\u3092\u4f53\u7cfb\u7684\u306b\u6559\u3048\u3066\u3044\u308b\u30b5\u30a4\u30c8\u306f\u5c11\u306a\u3044\u305f\u3081\u3001\u306a\u3093\u3068\u306a\u304f\u3057\u304b\u7406\u89e3\u3067\u304d\u3066\u3044\u306a\u3044\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u3053\u3093\u306b\u3061\u306f\uff01\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u7de8\u96c6\u90e8\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u5b9f\u969b\u306bJava\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066Web\u30b5\u30a4\u30c8\u306e\u69cb\u7bc9\u3001\u696d\u52d9\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067Java\u3092\u4f7f\u7528\u3057\u3066\u3044\u305f\u8457\u8005\u304c<b>\u300c\u914d\u5217\u306e\u57fa\u790e\u306e\u57fa\u790e\u300d\u300c\u4fbf\u5229\u306a\u4f7f\u3044\u65b9\u300d\u300c\u6291\u3048\u3066\u304a\u304d\u305f\u3044\u914d\u5217\u306e\u30dd\u30a4\u30f3\u30c8\u300d<\/b>\u307e\u3067\u3092\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u521d\u5fc3\u8005\u5fc5\u898b\u306e\u5185\u5bb9\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u3044\u305f\u3060\u3044\u3066Java\u306e\u914d\u5217\u306b\u3064\u3044\u3066\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u3053\u3093\u306a\u4eba\u306e\u305f\u3081\u306b\u66f8\u304d\u307e\u3057\u305f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u914d\u5217\u306e\u57fa\u790e\u306e\u57fa\u790e\u3092\u5b66\u3073\u305f\u3044\u65b9<\/b><\/li>\n<li><b>\u914d\u5217\u306e\u3055\u307e\u3056\u307e\u306a\u64cd\u4f5c\u65b9\u6cd5\u3092\u77e5\u308a\u305f\u3044\u65b9<\/b><\/li>\n<li><b>\u914d\u5217\u3067\u3064\u307e\u3065\u3044\u3066\u56f0\u3063\u3066\u3044\u308b\u65b9<\/b><\/li>\n<\/ul>\n<\/div>\n<p>\u306a\u304a\u3001Java\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/www.sejuku.net\/blog\/148098\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Java\u306e\u914d\u5217\u3068\u306f<\/h2>\n<p>\u3067\u306f\u3001\u3053\u3053\u304b\u3089\u65e9\u901fJava\u306e\u914d\u5217\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3092\u9032\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u306f\u914d\u5217\u306e\u306f\u4f55\u304b\u3092\u77e5\u308b\u305f\u3081\u306b\u3001\u5909\u6570\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u304a\u3055\u3089\u3044\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true \">\/\/ \u5909\u6570\u3092\u5ba3\u8a00\r\nint  score1, score2, score3, score4, score5;\r\n\r\n\/\/ \u5909\u6570\u306b\u5024\u3092\u683c\u7d0d\r\nscore1 = 50;\r\nscore2 = 70;\r\nscore3 = 40;\r\nscore4 = 80;\r\nscore5 = 55;<\/pre>\n<p>\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u751f\u5f92\u306e\u5f97\u70b9\u3092\u305d\u308c\u305e\u308c\u306e\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3082\u3057\u751f\u5f92\u306e\u6570\u304c30\u4eba\u300150\u4eba\u3060\u3063\u305f\u3068\u3057\u305f\u3089\u3001\u751f\u5f92\u306e\u4eba\u6570\u5206\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u306a\u304f\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001<b>\u914d\u5217\u3092\u4f7f\u3048\u3070\u540c\u3058\u578b\u306e\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u3066\u683c\u7d0d<\/b>\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u914d\u5217\u306b\u7f6e\u304d\u63db\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">\/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\nint score[] = new int[5];\r\n\r\n\/\/ \u914d\u5217\u306b\u5024\u3092\u683c\u7d0d\r\nscore[0] = 50;\r\nscore[1] = 70;\r\nscore[2] = 40;\r\nscore[3] = 80;\r\nscore[4] = 55;<\/pre>\n<p>\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u914d\u5217\u5909\u6570score[]\u3092\u5ba3\u8a00\u3057\u3066\u3001\u305d\u306e\u3042\u3068\u914d\u5217\u7528\u306e\u7bb1\u30925\u500b\u5206\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002\u5909\u6570\u306e\u5f8c\u308d\u306b\u89d2\u62ec\u5f27[]\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u3001\u300c\u3053\u308c\u306f\u914d\u5217\u306e\u5909\u6570\u3067\u3059\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u300cnew int[5]\u300d\u306e\u610f\u5473\u306f\u308f\u304b\u308a\u307e\u3059\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>new\u6f14\u7b97\u5b50\u306f\u5b9f\u4f53\u3001\u3064\u307e\u308a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u914d\u5217\u306e\u5834\u5408\u306f\u300cint\u578b\u306e\u914d\u5217\u5909\u6570\u540d\u30675\u500b\u5206\u306e\u7bb1\u3092\u78ba\u4fdd\u3057\u307e\u3059\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u6700\u521d\u306b\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u914d\u5217\u306e\u30a4\u30e1\u30fc\u30b8\u3092\u56f3\u306b\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u56f3\uff09\u914d\u5217\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316<br \/>\n<a href=\"https:\/\/www.sejuku.net\/blog\/84946\/java_array_01-2\" rel=\"attachment wp-att-85408\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85408\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_01-640x239.jpeg\" alt=\"\" width=\"640\" height=\"239\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_01-640x239.jpeg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_01-150x56.jpeg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_01-300x112.jpeg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_01.jpeg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>\u3053\u3053\u3067\u306f\u914d\u5217\u306b5\u500b\u5206\u306e\u7bb1\u3092\u7528\u610f\u3057\u305f\u304b\u3089\u30010\u304b\u3089\u9806\u756a\u306b\u5024\u3092\u683c\u7d0d\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002score[0]\u306e\u3088\u3046\u306b0\u304b\u3089\u59cb\u307e\u308b\u756a\u53f7\u3092\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08\u6dfb\u5b57\uff09\u307e\u305f\u306f\u8981\u7d20\u756a\u53f7\u3068\u8a00\u3044\u307e\u3059\u30021\u304b\u3089\u3067\u306f\u306a\u304f0\u304b\u3089\u59cb\u307e\u308b\u304b\u3089\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u56f3\uff09\u914d\u5217\u306b\u5024\u3092\u683c\u7d0d<br \/>\n<a href=\"https:\/\/www.sejuku.net\/blog\/84946\/java_array_02\" rel=\"attachment wp-att-85409\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85409\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_02-640x191.jpeg\" alt=\"\" width=\"640\" height=\"191\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_02-640x191.jpeg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_02-150x45.jpeg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_02-300x90.jpeg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/java_array_02.jpeg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>\u914d\u5217\u306f<b>\u8907\u6570\u306e\u5024\u30921\u3064\u306e\u5909\u6570\u3068\u3057\u3066\u6271\u3048\u308b<\/b>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002int\u306a\u3089int\u578b\u306e\u914d\u5217\u3092\u3001String\u306a\u3089String\u578b\u306e\u5024\u3092\u8907\u6570\u6271\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u540c\u3058\u7a2e\u985e\u306e\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u3066\u7ba1\u7406\u3057\u305f\u3044\u3068\u304d\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3053\u3053\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306b\u8907\u6570\u306e\u30c6\u30b9\u30c8\u306e\u7d50\u679c\u3092\u6271\u3044\u305f\u3044\u5834\u5408\u3001\u914d\u5217\u3092\u5b9a\u7fa9\u3057\u3066\u4eba\u6570\u5206\u306e\u7bb1\u3092\u7528\u610f\u3057\u3066\u304a\u3051\u3070\u307e\u3068\u3081\u3066\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u914d\u5217\u3068\u306f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u8907\u6570\u306e\u5024\u30921\u3064\u306e\u5909\u6570\u3068\u3057\u3066\u6271\u3048\u308b\u30c7\u30fc\u30bf\u578b\u306e\u3053\u3068<\/b><\/li>\n<li><b>\u540c\u3058\u30c7\u30fc\u30bf\u578b\u306e\u5024\u3092\u8907\u6570\u683c\u7d0d\u3067\u304d\u308b<\/b><\/li>\n<li><b>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08\u6dfb\u5b57\uff09\u306f0\u304b\u3089\u59cb\u307e\u308b<\/b><\/li>\n<\/ul>\n<\/div>\n<h2>Java\u306e\u914d\u5217\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u3063\u3066\uff1f<\/h2>\n<p><a href=\"https:\/\/www.sejuku.net\/blog\/84946\/shutterstock_748617433-3\" rel=\"attachment wp-att-85423\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85423\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_748617433-640x366.jpg\" alt=\"\" width=\"640\" height=\"366\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_748617433-640x366.jpg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_748617433-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_748617433-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_748617433.jpg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><div class=\"img-caption\">\u753b\u50cf\uff1ashutter stock<\/div><\/p>\n<p>\u914d\u5217\u304c\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u304b\u3001\u306a\u3093\u3068\u306a\u304f\u30a4\u30e1\u30fc\u30b8\u306f\u3067\u304d\u307e\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u3053\u3053\u3067\u306f<strong>\u914d\u5217\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u308b\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066<\/strong>\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u306e\u4f7f\u3044\u65b9\u306f\u306a\u3093\u3068\u306a\u304f\u308f\u304b\u3063\u305f\u3093\u3067\u3059\u3051\u3069\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3059\u308b\u3068\u304d\u306b\u3069\u3046\u3084\u3063\u3066\u4f7f\u3046\u306e\u304b\uff1f\u3069\u3093\u306a\u3068\u304d\u306b\u4f7f\u3046\u306e\u304b\u304c\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u3066\u306a\u3044\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u3053\u3053\u3067\u306f\u3001\u914d\u5217\u3092\u4f7f\u3046\u3053\u3068\u3067\u3069\u3093\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3048\u308b<\/h3>\n<p>\u914d\u5217\u306f\u540c\u3058\u30c7\u30fc\u30bf\u578b\u306e\u5024\u3092\u8907\u6570\u6271\u3046\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002\u3061\u3087\u3063\u3068\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u3084\u30a2\u30d7\u30ea\u3092\u958b\u767a\u3059\u308b\u5834\u5408\u3001\u3055\u307e\u3056\u307e\u306a<b>\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u5fc5\u8981<\/b>\u304c\u5fc5\u305a\u3068\u8a00\u3063\u3066\u3044\u3044\u307b\u3069\u3067\u3066\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u540c\u3058\u30c7\u30fc\u30bf\u578b\u3067\u5024\u30921000\u500b\u7528\u610f\u3057\u306a\u3051\u308c\u3070\u884c\u3051\u306a\u3044\u5834\u5408\u3001\u5909\u6570\u30921000\u500b\u5206\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int \u5909\u65701,\u5909\u65702,\u5909\u65703,\u5909\u65704,\u5909\u65705,\u5909\u65706,\u5909\u65707,\u5909\u65708,\u5909\u65709,\u301c \u5909\u65701000;<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u5909\u6570\u30921000\u500b\u5206\u7528\u610f\u3059\u308b\u306a\u3093\u3066\u304b\u306a\u308a\u9762\u5012\u3067\u3059\u3088\u306d\u3002\u3057\u304b\u3057\u3001\u914d\u5217\u306a\u3089\u4e00\u5ea6\u306e\u5b9a\u7fa9\u30671000\u500b\u5206\u306e\u5165\u308c\u7269\u3092\u7528\u610f\u3059\u308b\u3082\u53ef\u80fd\u306a\u306e\u3067\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int \u5909\u6570[] = new int[\u8981\u7d20\u6570];<\/pre>\n<p>\u540c\u3058\u3088\u3046\u306a\u5909\u6570\u3092\u8907\u6570\u7528\u610f\u3059\u308b\u624b\u9593\u304c\u7701\u3051\u3066\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u306d\u3002<\/p>\n<h3>\u3055\u307e\u3056\u307e\u306a\u914d\u5217\u95a2\u9023\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3001\u30e1\u30f3\u30d0\u304c\u4f7f\u3048\u308b<\/h3>\n<p>\u914d\u5217\u306f\u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u8907\u6570\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u305f\u304f\u3055\u3093\u306e\u30c7\u30fc\u30bf\u304c\u3042\u308b\u3068\u305d\u306e\u5206\u914d\u5217\u306b\u5bfe\u3057\u3066\u3084\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u51e6\u7406\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u300c\u914d\u5217\u304b\u3089\u5fc5\u8981\u306a\u5024\u3060\u3051\u53d6\u308a\u51fa\u3057\u305f\u3044\u300d\u300c\u914d\u5217A\u3068\u914d\u5217B\u3092\u7d50\u5408\u3057\u305f\u3044\u300d\u300c\u914d\u5217\u306e\u5024\u3092\u6607\u9806\u30fb\u964d\u9806\u3067\u4e26\u3073\u66ff\u3048\u305f\u3044\u300d\u300c\u3053\u306e\u914d\u5217\u306e\u8981\u7d20\u6570\u3063\u3066\u3069\u308c\u304f\u3089\u3044\u3060\u3063\u3051\uff1f\u300d\u306a\u3069\u3002\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u914d\u5217\u3067\u4f7f\u7528\u3067\u304d\u308b<b>\u30e1\u30f3\u30d0\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u3053\u3068\u3067\u7c21\u5358\u306b\u89e3\u6c7a<\/b>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>Java\u306e\u914d\u5217\u306e\u57fa\u790e\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<p><a href=\"https:\/\/www.sejuku.net\/blog\/84946\/shutterstock_699634498\" rel=\"attachment wp-att-85424\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85424\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_699634498-640x366.jpg\" alt=\"\" width=\"640\" height=\"366\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_699634498-640x366.jpg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_699634498-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_699634498-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_699634498.jpg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><div class=\"img-caption\">\u753b\u50cf\uff1ashutter stock<\/div><\/p>\n<p>\u914d\u5217\u3092\u4f7f\u3046\u306b\u306f\u3001\u901a\u5e38\u306e\u5909\u6570\u3068\u540c\u69d8\u306b\u5ba3\u8a00\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int score[];<\/pre>\n<p>\u5909\u6570\u540d\u306e\u5f8c\u308d\u306b\u89d2\u62ec\u5f27[]\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u300c\u3053\u306e\u5909\u6570\u306f\u914d\u5217\u3067\u3059\u3088\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3067\u914d\u5217\u306e\u5909\u6570score\u3092\u5ba3\u8a00\u3057\u307e\u3057\u305f\u304c\u3001\u914d\u5217\u3092\u4f7f\u7528\u3059\u308b\u306b\u306f<b>\u3044\u304f\u3064\u7bb1\u3092\u7528\u610f\u3059\u308b\u304b<\/b>\u3092\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u3042\u3089\u304b\u3058\u3081\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int score[];\r\nscore = new int[5];<\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5ba3\u8a00\u3068\u521d\u671f\u5316\u3092\u4e00\u5ea6\u306b\u884c\u3046\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int score[] = new int[5];<\/pre>\n<p>\u3053\u308c\u3067\u3001\u914d\u5217\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306fint\u578b\u306e\u914d\u5217\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u914d\u5217\u306f\u521d\u671f\u5316\u3068\u540c\u6642\u306b\u5404\u8981\u7d20\u6570\u306b\u306f0\u304c\u5165\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u914d\u5217\u306e\u521d\u671f\u5024\u304c\u4e88\u3081\u6c7a\u307e\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5ba3\u8a00\u3068\u540c\u6642\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int score[] = {50,70,40,80,55};<\/pre>\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306b\u914d\u5217\u306e\u5404\u8981\u7d20\u306b\u5024\u3092\u4ee3\u5165\u3057\u3066\u6b63\u3057\u304f\u5024\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n        \r\n    \/\/ \u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n    int score[] = {50,70,40,80,55};\r\n         \r\n    \/\/ \u5024\u3092\u51fa\u529b\r\n    System.out.println(score[0]);\r\n    System.out.println(score[1]);\r\n    System.out.println(score[2]);\r\n    System.out.println(score[3]);\r\n    System.out.println(score[4]);\r\n        \r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">50\r\n70\r\n40\r\n80\r\n55<\/pre>\n<p>\u914d\u5217\u306e\u5404\u8981\u7d20\u306b\u4ee3\u5165\u3057\u305f\u5024\u304c\u51fa\u529b\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002\u3057\u304b\u3057\u3001\u914d\u5217\u306e\u5024\u3092\u51fa\u529b\u3059\u308b\u3068\u304d\u306b\u300cscore[0]\u3001score[1] \u2026\u300d\u306e\u3088\u3046\u306b\u914d\u5217\u306e\u5404\u8981\u7d20\u3054\u3068\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u306e\u306f\u9762\u5012\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306e\u624b\u6bb5\u3068\u3057\u3066\u3001for\u6587\u3092\u4f7f\u7528\u3057\u3066\u914d\u5217\u306e\u8981\u7d20\u6570\u5206\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n        \r\n        \/\/ \u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n        int score[] = {50,70,40,80,55};\r\n         \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;5; i++){\r\n            System.out.println(score[i]);            \r\n        }\r\n    }\r\n}<\/pre>\n<p>\u3053\u308c\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7c21\u5358\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u51e6\u7406\u306e\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u306f\u3001for\u6587\u3067\u914d\u5217\u306e\u8981\u7d20\u6570\u5206\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3092\u5b9f\u884c\u3057\u3001\u5909\u6570i\u306e\u5024\u306f\u521d\u671f\u5024\u304c0\u3067\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3054\u3068\u306b\u5909\u6570i\u304c\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\uff081\u305a\u3064\u52a0\u7b97\uff09\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u30011\u56de\u76ee\u306e\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3067\u306ei\u306e\u5024\u306f0\u30012\u56de\u76ee\u306ei\u306e\u5024\u306f1\u3068\u306a\u308b\u306e\u3067\u914d\u5217score\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7\u306bi\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u914d\u5217\u306e\u8981\u7d20\u9806\u306b\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u304c\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002Java\u306efor\u6587\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u306d\u3002<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/22219\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/04\/java_for-150x85.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011for\u6587\u3001\u62e1\u5f35for\u6587\u3001forEach\u306e\u4f7f\u3044\u65b9<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n<p>\u57fa\u790e\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3068\u3081<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u914d\u5217\u306f\u300c\u578b\u540d \u5909\u6570\u540d[] = new int[\u8981\u7d20\u6570];\u300d\u3067\u5ba3\u8a00\u3068\u521d\u671f\u5316\u304c\u3067\u304d\u308b<\/b><\/li>\n<li><b>\u521d\u671f\u5024\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u300c\u578b\u540d \u5909\u6570\u540d[] = {\u50241,\u50242\u2026}\u300d\u3082\u53ef\u80fd<\/b><\/li>\n<li><b>\u914d\u5217\u306e\u8981\u7d20\u3054\u3068\u306b\u51e6\u7406\u3092\u884c\u3046\u306b\u306ffor\u6587\u304c\u4fbf\u5229<\/b><\/li>\n<\/ul>\n<\/div>\n<h2>Java\u306e\u914d\u5217\u306e\u4fbf\u5229\u306a\u4f7f\u3044\u65b9<\/h2>\n<p><a href=\"https:\/\/www.sejuku.net\/blog\/84946\/shutterstock_785526430\" rel=\"attachment wp-att-85425\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85425\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_785526430-640x366.jpg\" alt=\"\" width=\"640\" height=\"366\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_785526430-640x366.jpg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_785526430-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_785526430-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_785526430.jpg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><div class=\"img-caption\">\u753b\u50cf\uff1ashutter stock<\/div><\/p>\n<h3>\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u53d6\u5f97\u3057\u3066\u307f\u3088\u3046<\/h3>\n<p>\u914d\u5217\u306e\u51e6\u7406\u3092\u884c\u3046\u3068\u304d\u306b\u3001<b>\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u3042\u3089\u304b\u3058\u3081\u77e5\u3063\u3066\u304a\u304d\u305f\u3044<\/b>\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u914d\u5217\u306e\u8981\u7d20\u6570\u5206\u51e6\u7406\u3092\u5b9f\u884c\u3057\u305f\u3044\u3068\u304d\u306b\u3001\u914d\u5217\u306e\u8981\u7d20\u306e\u6570\u304c\u308f\u304b\u3063\u3066\u3044\u308c\u3070\u4f55\u56de\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308c\u3070\u3088\u3044\u304b\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u306e\u8981\u7d20\u6570\u306f\u57fa\u790e\u7684\u306a\u4f7f\u3044\u65b9\u3067\u8aac\u660e\u3057\u305f\u3068\u304a\u308a\u3001\u914d\u5217\u3092\u4f5c\u308b\u3068\u304d\u306b\u3042\u3089\u304b\u3058\u3081\u7bb1\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u914d\u5217\u3092\u8907\u6570\u4f7f\u3046\u5834\u5408\u3001\u3044\u3061\u3044\u3061\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u5168\u90e8\u899a\u3048\u3066\u304a\u304f\u306e\u306f\u9762\u5012\u3067\u3059\u3057\u3001<b>\u9593\u9055\u3063\u305f\u8981\u7d20\u6570\u3092\u6307\u5b9a\u3057\u3066\u4f8b\u5916\u304c\u767a\u751f<\/b>\u3059\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u914d\u5217\u540d\u306e\u5f8c\u308d\u306b\u300clength\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">\u8981\u7d20\u6570 = \u914d\u5217\u5909\u6570\u540d.length<\/pre>\n<p>\u5b9f\u969b\u306b\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u53d6\u5f97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff01<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        int[] score = {50,70,40,80,55};\r\n        System.out.println(score.length);\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">5<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u7c21\u5358\u306b\u53d6\u5f97\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002\u57fa\u790e\u7684\u306a\u4f7f\u3044\u65b9\u3067\u7d39\u4ecb\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3082\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u306e\u56de\u6570\u306f\u76f4\u63a5\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u304c\u3001length\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u6b63\u78ba\u306b\u914d\u5217\u306e\u8981\u7d20\u6570\u5206\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true\">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n        \r\n        \/\/ \u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n        int score[] = {50,70,40,80,55};\r\n         \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;score.length; i++){\r\n            System.out.println(score[i]);            \r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">50\r\n70\r\n40\r\n80\r\n55<\/pre>\n<p>\u914d\u5217\u306e\u8981\u7d20\u6570\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u914d\u5217\u306e\u8981\u7d20\u6570\u306f\u300c\u5909\u6570\u540d.length\u300d\u3067\u7c21\u5358\u306b\u53d6\u5f97\u3067\u304d\u308b<\/b><\/li>\n<li><b>\u914d\u5217\u306e\u8981\u7d20\u5206\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3092\u884c\u3046\u5834\u5408\u306flength\u4f7f\u7528\u3059\u308b\u3068\u4fbf\u5229<\/b><\/li>\n<\/ul>\n<\/div>\n<h3>\u914d\u5217\u306b\u5024\u3092\u8ffd\u52a0\u3057\u3066\u307f\u3088\u3046<\/h3>\n<p>\u914d\u5217\u306f\u6700\u521d\u306b\u8981\u7d20\u6570\u3092\u6c7a\u3081\u3066\u3057\u307e\u3046\u305f\u3081\u3001<b>\u3042\u3068\u304b\u3089\u5024\u306e\u8ffd\u52a0\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/b>\u305d\u306e\u305f\u3081\u3001\u65b9\u6cd5\u3068\u3057\u3066\u306f\u5024\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306e\u914d\u5217\u3092\u5225\u9014\u7528\u610f\u3057\u3066\u3001\u5143\u306e\u914d\u5217\u306e\u5024\u3092\u30b3\u30d4\u30fc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u306b\u306f\u3001java.lang.System\u30af\u30e9\u30b9\u306e\u300carraycopy\u300d\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002arraycopy\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u914d\u5217\u306e\u30b3\u30d4\u30fc\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">System.arraycopy(\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217, \u30b3\u30d4\u30fc\u5143\u914d\u5217\u306e\u958b\u59cb\u4f4d\u7f6e, \r\n\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217, \u30b3\u30d4\u30fc\u5148\u914d\u5217\u306e\u958b\u59cb\u4f4d\u7f6e, \u30b3\u30d4\u30fc\u5143\u914d\u5217\u306e\u8981\u7d20\u6570);<\/pre>\n<p>\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\r\n        int[] score1 = {50,70,40,80,55};\r\n        \r\n        \/\/\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\r\n        int[] score2 = new int[10];\r\n         \r\n        \/\/\u914d\u5217\u3092\u30b3\u30d4\u30fc\r\n        System.arraycopy(score1, 0, score2, 0, score1.length);\r\n        \r\n        for(int i=0; i&lt;score2.length; i++){\r\n            System.out.println(score2[i]);\r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">50\r\n70\r\n40\r\n80\r\n55\r\n0\r\n0\r\n0\r\n0\r\n0<\/pre>\n<p>\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u307e\u305a5\u500b\u306e\u8981\u7d20\u3092\u6301\u3064\u914d\u5217score1\u3092\u5ba3\u8a00\u3057\u3066\u5024\u3092\u4ee3\u5165\u3057\u3001\u6b21\u306b10\u500b\u5206\u306e\u8981\u7d20\u3092\u6301\u3064\u914d\u5217score2\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002arraycopy\u306e\u51e6\u7406\u3067\u306f\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217score1\u306e\u5185\u5bb9\u3092\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217score2\u306b\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>score2\u306e\u4e2d\u8eab\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001score1\u306e\u5185\u5bb9\u304c\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\uff01<\/p>\n<p>\u914d\u5217\u306b\u5024\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>java.lang.System\u30af\u30e9\u30b9\u306earraycopy\u3092\u4f7f\u3046<\/b><\/li>\n<li><b>\u8ffd\u52a0\u3057\u305f\u3044\u8981\u7d20\u5206\u306e\u914d\u5217\u3092\u4f5c\u6210\u3059\u308b<\/b><\/li>\n<li><b>arraycopy\u3092\u4f7f\u7528\u3059\u308b\u3068\u30b3\u30d4\u30fc\u5143\u914d\u5217\u306e\u5024\u304c\u30b3\u30d4\u30fc\u5148\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3055\u308c\u308b<\/b><\/li>\n<\/ul>\n<\/div>\n<h3>\u914d\u5217\u306e\u5024\u3092\u691c\u7d22\u3057\u3066\u307f\u3088\u3046<\/h3>\n<p>\u914d\u5217\u3067\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3063\u3066\u3044\u308b\u3068\u3001\u914d\u5217\u306e\u4e2d\u306b\u76ee\u7684\u306e\u5024\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u304b\uff1f\u3000\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u914d\u5217\u306b\u201d\u30aa\u30ec\u30f3\u30b8\u201d\u306e\u5024\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f\u3069\u3046\u3059\u308c\u3070\u826f\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p><b>\uff1cif\u6587\u3092\u4f7f\u3046\u65b9\u6cd5\uff1e<\/b><\/p>\n<p>\u914d\u5217\u306e\u4e2d\u3067\u7279\u5b9a\u306e\u5024\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5834\u5408\u3001\u307e\u305aif\u6587\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        String fruits[] = {\"\u308a\u3093\u3054\", \"\u30aa\u30ec\u30f3\u30b8\", \"\u30e1\u30ed\u30f3\", \"\u30d0\u30ca\u30ca\"};        \r\n        \/\/ \u914d\u5217\u306e\u5024\u3092\u691c\u7d22\r\n        for(int i=0; i&lt;fruits.length; i++){\r\n            if(fruits[i] == \"\u30aa\u30ec\u30f3\u30b8\"){\r\n                System.out.println(\"\u30aa\u30ec\u30f3\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\uff01\");\r\n            }\r\n        }\r\n    }\r\n \r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">\u30aa\u30ec\u30f3\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\uff01<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306bfor\u6587\u306e\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u306e\u4e2d\u3067\u3001if\u6587\u306e\u6761\u4ef6\u5f0f\u3067\u201d\u30aa\u30ec\u30f3\u30b8\u201d\u3068\u4e00\u81f4\u3059\u308b\u5024\u304c\u306a\u3044\u304b\u3092\u914d\u5217\u306e\u8981\u7d20\u3054\u3068\u306b\u691c\u7d22\u3059\u308b\u3053\u3068\u3067\u3001\u7c21\u5358\u306b\u30c1\u30a7\u30c3\u30af\u3067\u304d\u307e\u3059\u3002if\u6587\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u4f7f\u3044\u65b9\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u65b9\u306f\u5408\u308f\u305b\u3066\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff01<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/21911\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/04\/image9-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011if\u6587\u3067\u6761\u4ef6\u5206\u5c90(else\u3001AND\/OR\u3001\u5426\u5b9a\u3001\u7701\u7565\u3001\u4e09\u9805\u6f14\u7b97\u5b50)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n<p><strong>\uff1cutil.Arrays\u306easList\u3092\u4f7f\u3046\u65b9\u6cd5\uff1e<\/strong><\/p>\n<p>\u914d\u5217\u306e\u4e2d\u306b\u7279\u5b9a\u306e\u5024\u3092\u542b\u307e\u308c\u308b\u304b\u7c21\u5358\u306b\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3044\u5834\u5408\u306fjava.util.Arrays\u30af\u30e9\u30b9\u306e\u300casList\u300d\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u4fbf\u5229\u3067\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.Arrays;\r\n\r\npublic class Main { \r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        String fruits[] = {\"\u308a\u3093\u3054\", \"\u30aa\u30ec\u30f3\u30b8\", \"\u30e1\u30ed\u30f3\", \"\u30d0\u30ca\u30ca\"};        \r\n        \r\n        \/\/ \u914d\u5217\u306e\u5024\u3092\u691c\u7d22\r\n        if(Arrays.asList(fruits).contains(\"\u30aa\u30ec\u30f3\u30b8\")){\r\n            System.out.println(\"\u30aa\u30ec\u30f3\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\uff01\");\r\n        }\r\n    }\r\n \r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">\u30aa\u30ec\u30f3\u30b8\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\uff01<\/pre>\n<p>Arrays\u30af\u30e9\u30b9\u306easList\u306f\u914d\u5217\u3092\u30ea\u30b9\u30c8\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002asList\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5f15\u6570\u3067\u6307\u5b9a\u3057\u305f\u5024\u3092\u691c\u7d22\u3057\u3066\u771f\u507d\u5024\u3092\u8fd4\u3059contains\u30e1\u30bd\u30c3\u30c9\u304c\u4f7f\u3048\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u7279\u5b9a\u306e\u5024\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u30c1\u30a7\u30c3\u30af\u3057\u305f\u3044\u3060\u3051\u306a\u3089\u914d\u5217\u3067\u3082\u4e00\u65e6\u30ea\u30b9\u30c8\u306b\u5909\u63db\u3057\u3066\u7c21\u5358\u306b\u5224\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u306e\u5024\u3092\u691c\u7d22\u3059\u308b\u306b\u306f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u914d\u5217\u306e\u5024\u3092\u691c\u7d22\u3059\u308b\u306b\u306f\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u4e2d\u3067\u5404\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3054\u3068\u306bif\u6587\u3067\u691c\u7d22\u3067\u304d\u308b<\/b><\/li>\n<li><b>\u7279\u5b9a\u306e\u5024\u304c\u5b58\u5728\u3059\u308b\u304b\u78ba\u8a8d\u3059\u308b\u306b\u306fjava.util.Arrays\u30af\u30e9\u30b9\u306easList\u30e1\u30bd\u30c3\u30c9\u304c\u4fbf\u5229<\/b><\/li>\n<\/ul>\n<\/div>\n<h3>\u914d\u5217\u306e\u9806\u756a\u3092\u4e26\u3073\u66ff\u3048\u3088\u3046<\/h3>\n<p>\u914d\u5217\u306e\u5024\u3092\u4e26\u3073\u66ff\u3048\u308b\uff08\u30bd\u30fc\u30c8\uff09\u306b\u306f\u3001java.util.Arrays\u30af\u30e9\u30b9\u306e\u300csort\u300d\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">Arrays.sort(\u914d\u5217\u540d);<\/pre>\n<p>sort\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001<b>\u914d\u5217\u3092\u6607\u9806\uff08\u5024\u304c\u5c0f\u3055\u3044\u9806\uff09<\/b>\u306b\u4e26\u3073\u66ff\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true\">import java.util.Arrays;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        int score[] = {50,70,40,80,55};\r\n        \r\n        \/\/ \u914d\u5217\u306e\u30bd\u30fc\u30c8\r\n        Arrays.sort(score);\r\n        \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;score.length; i++){\r\n            System.out.println(score[i]);            \r\n        }\r\n    }\r\n \r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">40\r\n50\r\n55\r\n70\r\n80<\/pre>\n<p>String\u578b\u306e\u5024\u3082\u540c\u69d8\u306b\u4e26\u3073\u66ff\u3048\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.Arrays;\r\n\r\npublic class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        String fruits[] = {\"apple\", \"orange\", \"melon\", \"banana\"};\r\n        \r\n        \/\/ \u914d\u5217\u306e\u30bd\u30fc\u30c8\r\n        Arrays.sort(fruits);\r\n        \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;fruits.length; i++){\r\n            System.out.println(fruits[i]);            \r\n        }\r\n    }\r\n \r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">apple\r\nbanana\r\nmelon\r\norange<\/pre>\n<p>String\u578b\u306e\u6587\u5b57\u5217\u306e\u5834\u5408\u306f<strong>\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\u306b\u4e26\u3073\u66ff\u3048\u3089\u308c\u307e\u3059<\/strong>\u3002\u964d\u9806\uff08\u5024\u304c\u5927\u304d\u3044\u9806\uff09\u306b\u4e26\u3073\u66ff\u3048\u305f\u3044\u5834\u5408\u306f\u3001sort\u30e1\u30bd\u30c3\u30c9\u306e\u7b2c\u4e8c\u5f15\u6570\u306bjava.util.Collections\u30af\u30e9\u30b9\u306e\u300creverseOrder\u300d\u30e1\u30bd\u30c3\u30c9\u3082\u5408\u308f\u305b\u3066\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true\">Arrays.sort(\u914d\u5217\u540d, Collections.reverseOrder());<\/pre>\n<p>\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.Arrays;\r\nimport java.util.Collections;\r\n\r\npublic class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        Integer score[] = {50,70,40,80,55};\r\n        \r\n        \/\/ \u914d\u5217\u306e\u30bd\u30fc\u30c8\r\n        Arrays.sort(score, Collections.reverseOrder());\r\n        \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;score.length; i++){\r\n                System.out.println(score[i]);            \r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">80\r\n70\r\n55\r\n50\r\n40<\/pre>\n<p>\u914d\u5217\u306e\u5024\u304c\u964d\u9806\u3067\u4e26\u3073\u66ff\u3048\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\uff01<\/p>\n<p>\u914d\u5217\u3092\u4e26\u3073\u66ff\u3048\u308b\uff08\u30bd\u30fc\u30c8\uff09\u306b\u306f<\/p>\n<div class=\"box01\">\n<ul>\n<li><b>\u6607\u9806\u3067\u4e26\u3073\u66ff\u3048\u308b\u306a\u3089Arrays.sort<\/b><\/li>\n<li><b>\u964d\u9806\u3067\u4e26\u3073\u66ff\u3048\u308b\u306a\u3089Arrays.sort\u306e\u5f15\u6570\u306bjava.util.Collections\u306ereverseOrder\u3092\u6307\u5b9a\u3059\u308b<\/b><\/li>\n<\/ul>\n<\/div>\n<h2>Java\u306e\u914d\u5217\u3067\u306e\u6c17\u3092\u3064\u3051\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8<\/h2>\n<p><a href=\"https:\/\/www.sejuku.net\/blog\/84946\/shutterstock_187833752\" rel=\"attachment wp-att-85426\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-85426\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_187833752-640x366.jpg\" alt=\"\" width=\"640\" height=\"366\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_187833752-640x366.jpg 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_187833752-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_187833752-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2019\/02\/shutterstock_187833752.jpg 700w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><div class=\"img-caption\">\u753b\u50cf\uff1ashutter stock<\/div><\/p>\n<h3>\u8981\u7d20\u6570\u3092\u8d85\u3048\u3066\u5024\u3092\u683c\u7d0d\u3067\u304d\u306a\u3044<\/h3>\n<p>\u914d\u5217\u306f\u8981\u7d20\u6570\u3092\u8d85\u3048\u3066<b>\u65b0\u3057\u3044\u5024\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093<\/b>\u3002\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b5\u500b\u5206\u306e\u8981\u7d20\u304c\u3042\u308b\u914d\u5217\u3092\u7528\u610f\u3057\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">int[] array = new int[5];<\/pre>\n<p>\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f0\u304b\u3089\u59cb\u3081\u308b\u306e\u30675\u500b\u5206\u306e\u8981\u7d20\u3092\u4f5c\u6210\u3057\u305f\u3068\u304d\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f0,1,2,3,4\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u3053\u306e\u914d\u5217\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u3068\u304d\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">array[0] = 10;\r\narray[1] = 20;\r\narray[2] = 30;\r\narray[3] = 40;\r\narray[4] = 50;<\/pre>\n<p>\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u8981\u7d20\u6570\u3092\u8d85\u3048\u305f\u914d\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u5024\u3092\u4ee3\u5165\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        int[] array = new int[5];\r\n        \r\n        array[0] = 10;\r\n        array[1] = 20;\r\n        array[2] = 30;\r\n        array[3] = 40;\r\n        array[4] = 50;\r\n        array[5] = 60;\r\n        \r\n        \/\/ \u5024\u3092\u51fa\u529b\r\n        for(int i=0; i&lt;array.length; i++){\r\n                System.out.println(array[i]);            \r\n        }\r\n    }\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">Exception in thread \"main\" java.lang.ArrayIndexOutOfBoundsException: 5\r\n    at Main.main(Main.java:17)<\/pre>\n<p>\u300cArrayIndexOutOfBoundsException\u300d\u306f\u4e3b\u306b\u914d\u5217\u306e\u5b58\u5728\u3057\u306a\u3044\u8981\u7d20\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u4f8b\u5916\u3067\u3059\u3002\u4eca\u56de\u306f\u8981\u7d20\u6570\u3092\u8d85\u3048\u3066array[5] \u306b\u5024\u3092\u4ee3\u5165\u3057\u3088\u3046\u3068\u3057\u3066\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u914d\u5217\u3067\u306f\u3053\u306e\u3088\u3046\u306b\u8981\u7d20\u6570\u3092\u8d85\u3048\u305f\u914d\u5217\u306b\u30a2\u30af\u30bb\u30b9\u3092\u3057\u3088\u3046\u3068\u3057\u3066\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u304c\u975e\u5e38\u306b\u591a\u3044\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3>\u914d\u5217\u306e\u8981\u7d20\u6570\u306f\u5909\u66f4\u3067\u304d\u306a\u3044<\/h3>\n<p>\u914d\u5217\u306f\u6700\u521d\u306b\u8981\u7d20\u6570\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u3001\u3042\u3068\u304b\u3089\u8981\u7d20\u6570\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6700\u521d\u306b\u914d\u5217\u306e\u8981\u7d20\u6570\u30925\u3067\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001\u305d\u306e\u5f8c\u306e\u8981\u7d20\u6570\u306f\u305a\u3063\u30685\u3067\u56fa\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true\">int[] array = new int[5];<\/pre>\n<p>\u3042\u3068\u304b\u3089\u8981\u7d20\u6570\u3092\u5897\u3084\u3059\u5fc5\u8981\u6027\u304c\u751f\u3058\u305f\u5834\u5408\u306f\u3001\u300c\u914d\u5217\u306b\u5024\u3092\u8ffd\u52a0\u3057\u3066\u307f\u3088\u3046\u300d\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306barraycopy\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5024\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u308f\u3056\u308f\u3056arraycopy\u3067\u5225\u306e\u914d\u5217\u3092\u7528\u610f\u3059\u308b\u306e\u306f\u9762\u5012\u3067\u3059\u3057\u3001\u914d\u5217\u306e\u8981\u7d20\u6570\u304c\u5927\u304d\u3044\u5834\u5408\u306f\u305d\u306e\u5206\u30b3\u30d4\u30fc\u3059\u308b\u306e\u306b\u30e1\u30e2\u30ea\u3092\u6d88\u8cbb\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u300c\u8981\u7d20\u6570\u304c\u6c7a\u307e\u3063\u3066\u3044\u306a\u3044\u300d\u300c\u3042\u3068\u304b\u3089\u5024\u3092\u8ffd\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u300d\u306a\u3069\u306e\u5834\u5408\u306f\u56fa\u5b9a\u9577\u306e\u914d\u5217\u3067\u306f\u306a\u304f\u3001\u53ef\u5909\u9577\u306eList\uff08\u30ea\u30b9\u30c8\uff09\u3092\u4f7f\u7528\u3057\u305f\u307b\u3046\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u3082\u305d\u3082\u30ea\u30b9\u30c8\u3068\u306f<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>List(\u30ea\u30b9\u30c8)\u306f\u914d\u5217\u306e\u3088\u3046\u306b\u8907\u6570\u306e\u5024\u3092\u307e\u3068\u3081\u3066\u6271\u3046\u3053\u3068\u304c\u3067\u308b<\/b><\/li>\n<li><b>\u914d\u5217\u3068\u7570\u306a\u308b\u3068\u3053\u308d\u306f\u3001\u8981\u7d20\u6570\u3092\u6c7a\u3081\u305a\u306b\u5024\u3092\u968f\u6642\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306e\u3067\u7528\u9014\u306b\u3088\u3063\u3066\u4f7f\u3044\u5206\u3051\u308b<\/b><\/li>\n<\/ul>\n<\/div>\n<p>\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/20355\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/05\/shutterstock_595820321-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">Java\u306eList\u578b\u3068\u306f\uff01\uff1fArrayList\u306e\u4f7f\u3044\u65b9\u3092\u57fa\u790e\u306e\u57fa\u790e\u304b\u3089\u89e3\u8aac\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n<h3>\u914d\u5217\u306f\u53c2\u7167\u578b\u5909\u6570<\/h3>\n<p>\u914d\u5217\u306f\u53c2\u7167\u578b\u306e\u5909\u6570\u3067\u3059\u3002\u53c2\u7167\u578b\u306e\u5909\u6570\u3068\u306f\u3001\u57fa\u672c\u30c7\u30fc\u30bf\u578b\u306e\u3088\u3046\u306b\u7bb1\u306e\u4e2d\u306b\u5024\u305d\u306e\u3082\u306e\u304c\u5165\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5024\u3092\u305d\u306e\u7bb1\u306e\u4e2d\u306b\u683c\u7d0d\u3057\u3066\u4fdd\u7ba1\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u7bb1\u304c\u7f6e\u304b\u308c\u3066\u3044\u308b\u5834\u6240\u3092\u53c2\u7167\u3059\u308b\u5909\u6570\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u3088\u3046\u306b\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u30b3\u30d4\u30fc\u3057\u305f\u914d\u5217\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u3068\u3069\u3046\u306a\u308b\u306e\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">public class Main {\r\n    public static void main(String[] args) throws Exception {\r\n\r\n        \/\/ \u914d\u5217\u3092\u5ba3\u8a00\r\n        int array1[] = {10,20,30};\r\n        int array2[] = array1;\r\n        \r\n        array2[0] = 100;\r\n        \r\n        System.out.println(array1[0]);\r\n\r\n    } \r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"theme:dark-terminal lang:default decode:true \">100<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u914d\u5217array1\u3092\u30b3\u30d4\u30fc\u3057\u305farray2\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3082\u3001\u53c2\u7167\u3057\u3066\u3044\u308b\u5834\u6240\u306f\u540c\u3058\u306e\u305f\u3081\u3001<b>\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u3082\u5024\u304c\u5909\u66f4<\/b>\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>Shallow\u30b3\u30d4\u30fc\u3068Deep\u30b3\u30d4\u30fc<\/p>\n<p><div class=\"box01\"><br \/>\n\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3057\u307e\u3046\u3068\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u3082\u5909\u66f4\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u53c2\u7167\u306e\u307f\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u3092\u300cShallow\u30b3\u30d4\u30fc\uff08\u6d45\u3044\u30b3\u30d4\u30fc\uff09\u300d\u3068\u8a00\u3044\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3057\u3066\u5225\u306e\u914d\u5217\u3068\u3057\u3066\u4f7f\u3044\u305f\u3044\u5834\u5408\u306f\u300cDeep\u30b3\u30d4\u30fc\uff08\u6df1\u3044\u30b3\u30d4\u30fc\uff09\u300d\u3068\u8a00\u3063\u3066\u3001\u300c\u914d\u5217\u306b\u5024\u3092\u8ffd\u52a0\u3057\u3066\u307f\u3088\u3046\u300d\u3067\u89e3\u8aac\u3057\u305f\u3088\u3046\u306barraycopy\u3067\u5225\u306e\u914d\u5217\u3092\u65b0\u305f\u306b\u4f5c\u308b\u65b9\u6cd5\u304c\u6709\u52b9\u3067\u3059\u3002<br \/>\n<\/div><\/p>\n<h2>Java\u306b\u3064\u3044\u3066\u3082\u3063\u3068\u77e5\u308a\u305f\u3044\u65b9\u3078<\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001Java\u306e\u914d\u5217\u306b\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u8eab\u306b\u3064\u3051\u308b\u305f\u3081\u306b\u306f\u3001<b>\u305f\u304f\u3055\u3093\u306e\u30c8\u30e9\u30a4\u30fb\u30a2\u30f3\u30c9\u30fb\u30a8\u30e9\u30fc\u304c\u5fc5\u8981<\/b>\u3067\u3059\u3002\u3057\u304b\u3057\u3001Java\u306f\u3067\u304d\u308b\u3053\u3068\u304c\u305f\u304f\u3055\u3093\u3042\u308b\u5206\u3001\u975e\u5e38\u306b\u5965\u306e\u6df1\u3044\u8a00\u8a9e\u3067\u3059\u3002<\/p>\n<p><div class=\"box_voice\">Java\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u3082\u3063\u3068\u3088\u304f\u77e5\u308a\u305f\u3044<br \/>\nJava\u306e\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u7740\u3051\u3089\u308c\u308b\u304b\u4e0d\u5b89\u30fb\u30fb\u30fb<br \/>\nJava\u3092\u4f53\u7cfb\u7684\u306b\u52c9\u5f37\u3057\u305f\u3044<\/div><\/p>\n<p>\u3068\u611f\u3058\u3066\u3044\u308b\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3082\u5408\u308f\u305b\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>Java\u306e\u6982\u8981\u304b\u3089\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3067\u7db2\u7f85\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u304d\u3063\u3068\u53c2\u8003\u306b\u306a\u308b\u306e\u3067\u306f\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/curriculums-java?cid=menu\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2022\/05\/howto-05-8-150x85.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">Java\u30a2\u30d7\u30ea\u958b\u767a\u5165\u9580\uff01\u672a\u7d4c\u9a13\u8005\u304c\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u57fa\u790e\u3092\u7dcf\u3056\u3089\u3044<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e742\u670822\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            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