{"id":134579,"date":"2024-03-26T08:19:20","date_gmt":"2024-03-25T23:19:20","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%82%a2%e3%83%b3%e3%83%80%e3%83%bc%e3%83%a9%e3%82%a4%e3%83%b3%e4%bb%98%e3%81%8d%e3%81%ae%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-27T22:42:01","modified_gmt":"2024-03-27T13:42:01","slug":"java%e3%81%a7%e3%82%a2%e3%83%b3%e3%83%80%e3%83%bc%e3%83%a9%e3%82%a4%e3%83%b3%e4%bb%98%e3%81%8d%e3%81%ae%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%82%a2%e3%83%b3%e3%83%80%e3%83%bc%e3%83%a9%e3%82%a4%e3%83%b3%e4%bb%98%e3%81%8d%e3%81%ae%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java\u3067\u30a2\u30f3\u30c0\u30fc\u30e9\u30a4\u30f3\u4ed8\u304d\u306e\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>Java \u3067\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u4ed8\u304d\u306e\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u306b\u306f\u3001StringBuilder \u307e\u305f\u306f StringBuffer \u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>StringBuilder\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>StringBuilder sb = new StringBuilder();\r\nsb.append(\"Hello\");\r\nsb.append(\"_\");\r\nsb.append(\"World\");\r\nString result = sb.toString();\r\nSystem.out.println(result);\r\n<\/code><\/pre>\n<p>\u79c1\u306f\u6700\u8fd1\u3001\u5175\u58eb\u304c\u884c\u9032\u3059\u308b\u5149\u666f\u3092\u898b\u307e\u3057\u305f\u3002<\/p>\n<pre class=\"post-pre\"><code>Hello_World\r\n<\/code><\/pre>\n<ol>\n<li>StringBuffer\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>StringBuffer sb = new StringBuffer();\r\nsb.append(\"Hello\");\r\nsb.append(\"_\");\r\nsb.append(\"World\");\r\nString result = sb.toString();\r\nSystem.out.println(result);\r\n<\/code><\/pre>\n<p>\u7d50\u679c\u3092\u8868\u793a\u3059\u308b<\/p>\n<pre class=\"post-pre\"><code>Hello_World\r\n<\/code><\/pre>\n<p>StringBuilder \u3068 StringBuffer \u30af\u30e9\u30b9\u306f\u3069\u3061\u3089\u3082\u53ef\u5909\u9577\u306e\u6587\u5b57\u5217\u3067\u3001append() \u30e1\u30bd\u30c3\u30c9\u3067\u6587\u5b57\u5217\u3092\u8ffd\u52a0\u3067\u304d\u3001toString() \u30e1\u30bd\u30c3\u30c9\u3067\u53ef\u5909\u9577\u306e\u6587\u5b57\u5217\u3092\u4e0d\u5909\u306e\u6587\u5b57\u5217\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u3067\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u4ed8\u304d\u306e\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u306b\u306f\u3001StringBuilder \u307e\u305f\u306f StringBuffer \u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 StringBuilder\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 S [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-134579","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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