{"id":431,"date":"2025-05-25T10:57:16","date_gmt":"2025-05-25T01:57:16","guid":{"rendered":"https:\/\/se-pg-toolbox.com\/?p=431"},"modified":"2025-05-25T10:57:16","modified_gmt":"2025-05-25T01:57:16","slug":"%e3%80%90java%e3%80%91java%e3%81%ae%e3%83%a9%e3%83%a0%e3%83%80%e5%bc%8f%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6%e3%81%ae%e8%aa%ac%e6%98%8e%e3%81%a8%e3%83%a1%e3%83%aa%e3%83%83%e3%83%88%e3%80%81%e3%83%87","status":"publish","type":"post","link":"https:\/\/se-pg-toolbox.com\/?p=431","title":{"rendered":"\u3010Java\u3011Java\u306e\u30e9\u30e0\u30c0\u5f0f\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3068\u30e1\u30ea\u30c3\u30c8\u3001\u30c7\u30e1\u30ea\u30c3\u30c8"},"content":{"rendered":"\n<p>Java\u3067\u306f\u30e9\u30e0\u30c0\u5f0f\u3068\u3044\u3046\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u7279\u5b9a\u306e\u51e6\u7406\u3092\u884c\u3046\u3088\u3046\u306a\u95a2\u6570\u306e\u5b9f\u4f53\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u66f8\u304d\u65b9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br><br>\u7c21\u5358\u306a\u95a2\u6570\u3067\u3042\u308c\u3070\u7c21\u6f54\u306b\u66f8\u3051\u308b\u305f\u3081\u3001\u5358\u7d14\u306a\u51e6\u7406\u3092\u4f55\u5ea6\u304b\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u4f7f\u3044\u307e\u308f\u3057\u305f\u3044\u5834\u5408\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3053\u3068\u3067\u7c21\u6f54\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u51fa\u6765\u3001\u30b3\u30fc\u30c9\u304c\u898b\u3084\u3059\u304f\u306a\u308b\u306a\u3069\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u4e00\u65b9\u3067\u30c7\u30d0\u30c3\u30b0\u6642\u306b\u30a8\u30e9\u30fc\u500b\u6240\u3092\u7279\u5b9a\u3057\u306b\u304f\u304f\u306a\u308b\u306a\u3069\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308a\u307e\u3059\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u3092\u898b\u308b\u3068\u3061\u3087\u3063\u3068\u5909\u306a\u66f8\u304d\u65b9\u3092\u3057\u3066\u3044\u308b\u306a\u3068\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u3053\u306e\u66f8\u304d\u65b9\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u5f79\u7acb\u3064\u6a5f\u4f1a\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u306e\u3067\u3001\u7d39\u4ecb\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u306b\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u3092\u77ed\u304f\u7c21\u6f54\u306b\u8a18\u8ff0\u51fa\u6765\u308b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u4e0a\u304c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u4ed6\u306b\u3082\u30e1\u30ea\u30c3\u30c8\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u6291\u3048\u3066\u304a\u304d\u305f\u3044\u30e1\u30ea\u30c3\u30c8\u306f\u3053\u306e\u4e8c\u3064\u3067\u3059\u3002<br><br>\u7c21\u7d20\u306a\u51e6\u7406\u3092\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u53c2\u7167\u3059\u308b\u306e\u304c\u666e\u901a\u306e\u65b9\u6cd5\u3067\u3059\u304c\u3001\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u7279\u5b9a\u30af\u30e9\u30b9\u306e\uff11\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3057\u304b\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u308f\u3056\u308f\u3056\u30e1\u30bd\u30c3\u30c9\u306b\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3053\u3068\u3067\u5b8c\u7d50\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br><br>\u307e\u305f\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3082\u4e0a\u304c\u308a\u307e\u3059\u3002<br><br>\u7c21\u5358\u306a\u51e6\u7406\u3067\u3042\u308b\u3068\u66f8\u304d\u65b9\u3092\u7701\u7565\u3067\u304d\u308b\u306e\u3067\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u898b\u3084\u3059\u3044\u30bd\u30fc\u30b9\u306b\u306a\u308a\u307e\u3059<br><br><br>\u4e00\u65b9\u3067\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3053\u3068\u3067\u751f\u307e\u308c\u308b\u30e1\u30ea\u30c3\u30c8\u3084\u6ce8\u610f\u70b9\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30d0\u30c3\u30b0\u304c\u3084\u308a\u306b\u304f\u304f\u306a\u308b<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u51e6\u7406\u306b\u5bfe\u3057\u3066\u306f\u4e0d\u9069\u5207<\/li>\n\n\n\n<li>Java\u306b\u6163\u308c\u3066\u3044\u306a\u3044\u4eba\u306b\u306f\u7406\u89e3\u3067\u304d\u306a\u3044\u30b3\u30fc\u30c9\u306b\u306a\u308b<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306e\u5916\u5074\u306e\u5909\u6570\u3092\u4f7f\u3046\u5834\u5408\u306f\u5b9f\u8cea\u7684\u306bfinal\u306a\u5909\u6570\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001this\u3092\u4f7f\u3046\u5834\u5408\u3082\u3001\u30e9\u30e0\u30c0\u5f0f\u306e\u5916\u5074\u3068\u5185\u5074\u3067\u306f\u6319\u52d5\u304c\u7570\u306a\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3068\u3001\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u304c\u8aad\u307f\u306b\u304f\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u7279\u306b\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u6642\u3001\u3069\u3053\u3067\u4f8b\u5916\u304c\u8d77\u304d\u305f\u306e\u304b\u3092\u8ffd\u3046\u306e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<br><br><br>\u307e\u305f\u3001\u30e9\u30e0\u30c0\u5f0f\u306f\u7c21\u5358\u306a\u51e6\u7406\u3092\u66f8\u304f\u306e\u306b\u9069\u3057\u305f\u3082\u306e\u3067\u3042\u308a\u3001\u8907\u96d1\u306a\u51e6\u7406\u3092\u66f8\u304f\u306e\u306b\u306f\u5411\u3044\u3066\u3044\u307e\u305b\u3093\u3002<br><br>\u7406\u7531\u3068\u3057\u3066\u306f\u5148\u8ff0\u306e\u4f8b\u5916\u306e\u8ffd\u8de1\u306e\u554f\u984c\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u8907\u96d1\u306a\u51e6\u7406\u3092\u66f8\u304f\u3068\u5358\u7d14\u306b\u8aad\u307f\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<br><br>\u3069\u3053\u307e\u3067\u304c\u901a\u5e38\u306e\u51e6\u7406\u3067\u3001\u3069\u3053\u307e\u3067\u304c\u30e9\u30e0\u30c0\u5f0f\u306a\u306e\u304b\uff1f<br><br>\u30e9\u30e0\u30c0\u5f0f\u5185\u306b\u6570\u5341\u884c\u304b\u3089\u6570\u767e\u884c\u306e\u51e6\u7406\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u3068\u3001\u5206\u304b\u3089\u306a\u304f\u306a\u308a\u307e\u3059\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u306e\u8a18\u8f09\u306f\u81ea\u5206\u306e\u982d\u306e\u4e2d\u3067\u3069\u3093\u306a\u51e6\u7406\u3092\u884c\u3063\u3066\u3044\u308b\u304b\u304c\u7c21\u5358\u306b\u308f\u304b\u308b\u51e6\u7406\u306b\u3068\u3069\u3081\u3066\u304a\u304f\u3079\u304d\u3082\u306e\u3067\u3059\u3002<br><br><br>\u30e9\u30e0\u30c0\u5f0f\u306f\u4e00\u822c\u7684\u306aJava\u306e\u30bd\u30fc\u30b9\u306e\u66f8\u304d\u65b9\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br><br>\u81ea\u5206\u304c\u73fe\u5834\u3067\u958b\u767a\u3059\u308b\u30bd\u30fc\u30b9\u3067\u898b\u305f\u3053\u3068\u304c\u306a\u3044\u3060\u3051\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u3053\u305d\u3053\u306e\u898f\u6a21\u306e\u30b3\u30fc\u30c9\u3067\u3042\u308c\u3070\u3001\u8ab0\u306b\u3067\u3082\u5206\u304b\u308b\u3088\u3046\u306b\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u308f\u306a\u3044\u30b1\u30fc\u30b9\u3082\u3042\u308b\u3088\u3046\u3067\u3059\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u306fJava\u306b\u3064\u3044\u3066\u77e5\u8b58\u304c\u3042\u308b\u4eba\u306b\u3068\u3063\u3066\u306f\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u306b\u306a\u308b\u4e00\u65b9\u3067\u3001Java\u306b\u5bfe\u3057\u3066\u77e5\u8b58\u304c\u6d45\u3044\u4eba\u306b\u3068\u3063\u3066\u306f\u6df7\u4e71\u3092\u62db\u304f\u66f8\u304d\u65b9\u3067\u3059\u3002<br><br>\u300c\u3053\u308c\u306f\u3069\u3093\u306a\u51e6\u7406\u3092\u884c\u3063\u3066\u3044\u308b\u3093\u3067\u3059\u304b\uff1f\u300d<br><br>\u3068\u3044\u3046\u8cea\u554f\u304c\u98db\u3093\u3067\u6765\u308b\u306b\u9593\u9055\u3044\u3042\u308a\u307e\u305b\u3093\u3002<br><br>\u306a\u306e\u3067\u3001\u8aad\u307f\u3084\u3059\u304f\u306a\u308b\u304b\u3089\u3068\u3044\u3046\u7406\u7531\u3067\u30e9\u30e0\u30c0\u5f0f\u3092\u591a\u7528\u3059\u308b\u306e\u306f\u907f\u3051\u3066\u304a\u3044\u305f\u65b9\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u3002<br><br><br>\u30e9\u30e0\u30c0\u5f0f\u5185\u3067\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u306e\u5916\u5074\u306e\u5909\u6570\u3092\u4f7f\u3046\u3053\u3068\u3082\u51fa\u6765\u307e\u3059\u304c\u3001\u3053\u306e\u5834\u5408\u306e\u5909\u6570\u306f\u5b9f\u8cea\u7684\u306bfinal\u306a\u3082\u306e\u3067\u306f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u3082\u5c11\u3057\u4e0d\u4fbf\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<br><br>final\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u5024\u304c\u5909\u66f4\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<br><br>\u5916\u5074\u306e\u5909\u6570\u3092\u30e9\u30e0\u30c0\u5f0f\u3067\u6271\u3046\u5834\u5408\u306f\u5024\u304c\u4ee3\u5165\u3055\u308c\u308b\u5909\u6570\u304c\u4f7f\u3048\u306a\u3044\u306e\u3067\u3001\u3053\u3053\u3092\u610f\u8b58\u3057\u3066\u304a\u304b\u306a\u3044\u3068\u30e9\u30e0\u30c0\u5f0f\u3092\u66f8\u304f\u6642\u306b\u3001\u300c\u5916\u5074\u306e\u5909\u6570\u3092\u53c2\u7167\u3067\u304d\u306a\u3044\u300d\u3068\u982d\u3092\u62b1\u3048\u3066\u534a\u65e5\u30cf\u30de\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u306e\u4e2d\u3067this\u3092\u4f7f\u3063\u3066\u3082\u30e9\u30e0\u30c0\u5f0f\u5185\u90e8\u306e\u5909\u6570\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u305b\u3093\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u306f\u72ec\u81ea\u306ethis\u3092\u6301\u305f\u306a\u3044\u305f\u3081\u3067\u3059\u3002<br><br>\u306a\u306e\u3067\u3001\u5916\u5074\u306ethis\u3092\u53c2\u7167\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u6319\u52d5\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3057\u3087\u3046\u3002<br><br>\u3080\u3057\u308d\u3001\u30e9\u30e0\u30c0\u5f0f\u306e\u4e2d\u3067\u306fthis\u3092\u4f7f\u308f\u306a\u3044\u3088\u3046\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u969b\u306b\u30eb\u30fc\u30eb\u4ed8\u3051\u3092\u3057\u305f\u65b9\u304c\u3001\u6df7\u4e71\u3092\u62db\u304f\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u305b\u305a\u306b\u6e08\u3080\u3053\u3068\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u969b\u306b\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3063\u305f\u4f8b<\/h2>\n\n\n\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306b\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3063\u305f\u51e6\u7406\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-line=\"4-7\"><code>\/\/10\u3092\u5e95\u3068\u3059\u308b1,000,000\u306e\u5bfe\u6570\u3092\u6c42\u3081\u308b\nlong num = 1000000;\n\t\t\n\/\/\u30e9\u30e0\u30c0\u5f0f\u306e\u5b9a\u7fa9\nLongToDoubleFunction f = (long n) -&gt; {\n\treturn Math.log10(num);\n};\n\n\/\/\u5b9f\u969b\u306b\u5b9a\u7fa9\u3057\u305f\u30e9\u30e0\u30c0\u5f0f\u306b\u5024\u3092\u5165\u308c\u3066\u51e6\u7406\u3092\u884c\u3046\ndouble result = f.applyAsDouble(num);\n\n\/\/\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3092\u884c\u3046\nSystem.out.println(&quot;\u901a\u5e38\u306e\u30e9\u30e0\u30c0\u5f0f\u306e\u5b9f\u884c\u7d50\u679c\uff1a&quot; + result);<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u5bfe\u6570\u3092\u6c42\u3081\u308b\u51e6\u7406\u3092\u30e9\u30e0\u30c0\u5f0f\u306b\u3057\u3066\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u540c\u4e00\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u547c\u3073\u51fa\u3057\u3066\u8a08\u7b97\u3092\u884c\u3063\u3066\u307f\u307e\u3057\u305f\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u306e\u306f\uff15\uff5e\uff17\u884c\u76ee\u3067\u3001\u51e6\u7406\u3092\u5b9a\u7fa9\u3057\u3066f\u3068\u3044\u3046\u540d\u524d\u3092\u4ed8\u3051\u3066\u3044\u307e\u3059\u3002<br><br>\u305d\u3057\u3066\u3001f\u3068\u540d\u524d\u3092\u4ed8\u3051\u305f\u30e9\u30e0\u30c0\u5f0f\u306b\u5024\u3092\u6e21\u3057\u3066\u8a08\u7b97\u3092\u884c\u3044\u3001\u6700\u7d42\u7d50\u679c\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3057\u3066\u307f\u307e\u3059\u3002<br><br>10\u3092\u5e95\u3068\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001log<sub>10<\/sub>1000000 =6\u3068\u306a\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u3053\u306e\u51e6\u7406\u306e\u5b9f\u884c\u7d50\u679c\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"262\" height=\"61\" src=\"https:\/\/se-pg-toolbox.com\/wp-content\/uploads\/2025\/05\/article29-1.png\" alt=\"\" class=\"wp-image-432\"\/><\/figure>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u304c\u8fd4\u3059\u5024\u306e\u578b\u304cDouble\u3067\u3001\u8fd4\u3059\u5024\u3092\u53d7\u3051\u53d6\u308b\u5909\u6570\u3082Double\u578b\u306a\u306e\u3067\u5c0f\u6570\u70b9\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6b63\u3057\u304f\u8a08\u7b97\u304c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e9\u30e0\u30c0\u5f0f\u306e\u8868\u8a18\u306e\u7701\u7565<\/h2>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u306e\u5229\u70b9\u3068\u3057\u3066\u3001\u578b\u306e\u8868\u8a18\u306e\u7701\u7565\u3084\u3001\u62ec\u5f27\u306e\u7701\u7565\u3001\u51e6\u7406\u3092\u56f2\u3080\u4e2d\u62ec\u5f27\u306e\u7701\u7565\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u4f8b\u3048\u3070\u3001\u4e0a\u8a18\u306e\u30e9\u30e0\u30c0\u5f0f\u306e\u5b9a\u7fa9\u3067\u3042\u308b<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>LongToDoubleFunction f = (long n) -&gt; {\n\treturn Math.log10(num);\n};<\/code><\/pre><\/div>\n\n\n\n<p>\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7701\u7565\u3057\u3066\u66f8\u304f\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>\/\/\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8272\u3005\u3068\u7701\u7565\u3067\u304d\u308b\n\n\/\/1.\u578b\u306e\u7701\u7565\nLongToDoubleFunction f1 = (n) -&gt; {\n\treturn Math.log10(num);\n};\n\n\/\/2.\u62ec\u5f27\u306e\u7701\u7565\uff08\u5f15\u6570\u304c\u4e00\u3064\u306e\u5834\u5408\u306e\u307f\u6709\u52b9\uff09\nLongToDoubleFunction f2 = n -&gt; {\n\treturn Math.log10(num);\n};\n\n\/\/3.\u4e2d\u62ec\u5f27\u3068return\u306e\u7701\u7565\uff08\u8fd4\u3059\u5024\u304c\u5358\u4e00\u306e\u5834\u5408\u306e\u307f\u6709\u52b9\uff09\nLongToDoubleFunction f3 = n -&gt; Math.log10(num);<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u66f8\u304d\u65b9\u3092\u7701\u7565\u3057\u3066\u3082\u8fd4\u3063\u3066\u304f\u308b\u5024\u306f\u540c\u3058\u3067\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u66f8\u304d\u65b9\u3092\u7701\u7565\u3067\u304d\u308b\u3053\u3068\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u5834\u5408\u306b\u81ea\u5206\u306e\u66f8\u304d\u305f\u3044\u65b9\u6cd5\u3067\u67d4\u8edf\u306b\u4f7f\u3048\u308b\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u4eca\u56de\u306fJava\u306e\u30e9\u30e0\u30c0\u5f0f\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u3057\u307e\u3057\u305f\u3002<br><br>\u8981\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e9\u30e0\u30c0\u5f0f\u306f\u30e1\u30bd\u30c3\u30c9\u306e\u5185\u90e8\u3067\u95a2\u6570\u306e\u5b9f\u4f53\u3092\u4f5c\u6210\u3059\u308b\u3082\u306e\u3067\u3042\u308b<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u3046\u5229\u70b9\u3068\u3057\u3066\u30b3\u30fc\u30c9\u3092\u7c21\u6f54\u306b\u3057\u3001\u53ef\u8aad\u6027\u3092\u4e0a\u3052\u308b\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u308b<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306b\u306f\u8907\u96d1\u306a\u51e6\u7406\u306e\u8a18\u8ff0\u306b\u5411\u304b\u306a\u3044\u3001\u30c7\u30d0\u30c3\u30b0\u306e\u8ffd\u8de1\u304c\u96e3\u3057\u304f\u306a\u308b\u306a\u3069\u30c7\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308b<\/li>\n\n\n\n<li>\u305d\u306e\u3088\u3046\u306a\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u6301\u3063\u3066\u3044\u3066\u3082\u3001\u30e9\u30e0\u30c0\u5f0f\u306fJava\u306e\u66f8\u304d\u65b9\u3068\u3057\u3066\u899a\u3048\u3066\u304a\u3044\u305f\u65b9\u304c\u3044\u3044<\/li>\n<\/ol>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u306f\u4f7f\u3044\u3053\u306a\u305b\u3070\u4fbf\u5229\u306a\u3082\u306e\u3067\u3059\u304c\u3001Java\u306e\u521d\u5fc3\u8005\u306b\u3068\u3063\u3066\u306f\u3068\u3063\u3064\u304d\u306b\u304f\u3044\u66f8\u304d\u65b9\u3067\u3042\u308a\u3001\u30b3\u30fc\u30c9\u3092\u4fdd\u5b88\u3059\u3059\u308b\u4eba\u306e\u30ec\u30d9\u30eb\u306b\u5408\u308f\u305b\u3066\u4f7f\u3046\u3079\u304d\u304b\u3001\u4f7f\u308f\u306a\u3044\u3079\u304d\u304b\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u307e\u305f\u3001\u30e9\u30e0\u30c0\u5f0f\u306b\u5b9a\u7fa9\u3059\u308b\u306e\u306f\u7c21\u6f54\u306a\u51e6\u7406\u306b\u3057\u305f\u65b9\u304c\u826f\u304f\u3001\u30e9\u30e0\u30c0\u5f0f\u5185\u3067\u5225\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u305f\u308a\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u306a\u3069\u3092\u884c\u3046\u3068\u3001\u9006\u306b\u5206\u304b\u308a\u3065\u3089\u3044\u30b3\u30fc\u30c9\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u3067\u3059\u306e\u3067\u3001\u30e9\u30e0\u30c0\u5f0f\u306f\u4f7f\u3044\u65b9\u3092\u9078\u3076\u66f8\u304d\u65b9\u3068\u8a00\u3063\u3066\u3082\u826f\u304f\u3001\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3066\u3001\u4f7f\u3046\u304b\u3069\u3046\u304b\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br><br>\u30e9\u30e0\u30c0\u5f0f\u3067\u66f8\u3051\u308b\u51e6\u7406\u306f\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u66f8\u3051\u308b\u51e6\u7406\u3067\u3082\u3042\u308b\u306e\u3067\u30fb\u30fb\u30fb\u3002<\/p>\n\n\n\n<p><span class=\"marker\">\u4eca\u56de\u306e\u8a18\u4e8b\u306f\u3053\u3053\u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002<br>\u307e\u305f\u6b21\u306e\u8a18\u4e8b\u3067\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306f\u30e9\u30e0\u30c0\u5f0f\u3068\u3044\u3046\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u7279\u5b9a\u306e\u51e6\u7406\u3092\u884c\u3046\u3088\u3046\u306a\u95a2\u6570\u306e\u5b9f\u4f53\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u66f8\u304d\u65b9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u7c21\u5358\u306a\u95a2\u6570\u3067\u3042\u308c\u3070\u7c21\u6f54\u306b\u66f8\u3051\u308b\u305f\u3081\u3001\u5358\u7d14\u306a\u51e6\u7406\u3092\u4f55\u5ea6\u304b\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u4f7f\u3044\u307e\u308f\u3057\u305f\u3044\u5834\u5408\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f<\/p>\n","protected":false},"author":2,"featured_media":160,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jin_ogp_image_url":"","_jin_last_featured_id":0,"footnotes":""},"categories":[9,5],"tags":[15,4,16],"class_list":["post-431","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","category-5","tag-java","tag-4","tag-16"],"_links":{"self":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=431"}],"version-history":[{"count":2,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/431\/revisions"}],"predecessor-version":[{"id":435,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/431\/revisions\/435"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/media\/160"}],"wp:attachment":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}