{"id":7468,"date":"2024-03-14T21:46:51","date_gmt":"2024-03-14T12:46:51","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7bigdecimal%e3%81%ae%e6%bc%94%e7%ae%97%e3%81%ab%e3%81%8a%e3%81%84%e3%81%a6%e7%b2%be%e5%ba%a6%e3%81%8c%e5%a4%b1%e3%82%8f%e3%82%8c%e3%82%8b%e5%95%8f%e9%a1%8c%e3%82%92%e8%a7%a3%e6%b1%ba\/"},"modified":"2025-08-03T14:46:25","modified_gmt":"2025-08-03T05:46:25","slug":"java%e3%81%a7bigdecimal%e3%81%ae%e6%bc%94%e7%ae%97%e3%81%ab%e3%81%8a%e3%81%84%e3%81%a6%e7%b2%be%e5%ba%a6%e3%81%8c%e5%a4%b1%e3%82%8f%e3%82%8c%e3%82%8b%e5%95%8f%e9%a1%8c%e3%82%92%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7bigdecimal%e3%81%ae%e6%bc%94%e7%ae%97%e3%81%ab%e3%81%8a%e3%81%84%e3%81%a6%e7%b2%be%e5%ba%a6%e3%81%8c%e5%a4%b1%e3%82%8f%e3%82%8c%e3%82%8b%e5%95%8f%e9%a1%8c%e3%82%92%e8%a7%a3%e6%b1%ba\/","title":{"rendered":"BigDecimal\u306e\u7cbe\u5ea6\u554f\u984c\u3068\u306f\uff1fJava\u3067\u306e\u89e3\u6c7a\u7b56\u3092\u89e3\u8aac"},"content":{"rendered":"<p>Java\u3067\u3001BigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u3068\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u6f14\u7b97\u3067\u7cbe\u5ea6\u304c\u5931\u308f\u308c\u308b\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6570\u5024\u8a08\u7b97\u306bBigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6f14\u7b97\u3084\u6bd4\u8f03\u306b\u306fBigDecimal\u304c\u63d0\u4f9b\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u6f14\u7b97\u5b50\u3092\u76f4\u63a5\u4f7f\u3046\u3053\u3068\u306f\u907f\u3051\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528BigDecimal\u7c7b\u6765\u8fdb\u884c\u7cbe\u786e\u8ba1\u7b97\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.math.BigDecimal;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Main<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">BigDecimal<\/span> <span class=\"hljs-variable\">num1<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">BigDecimal<\/span>(<span class=\"hljs-string\">\"0.1\"<\/span>);\r\n        <span class=\"hljs-type\">BigDecimal<\/span> <span class=\"hljs-variable\">num2<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">BigDecimal<\/span>(<span class=\"hljs-string\">\"0.2\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u4f7f\u7528add\u65b9\u6cd5\u8fdb\u884c\u52a0\u6cd5\u8fd0\u7b97<\/span>\r\n        <span class=\"hljs-type\">BigDecimal<\/span> <span class=\"hljs-variable\">sum<\/span> <span class=\"hljs-operator\">=<\/span> num1.add(num2);\r\n\r\n        System.out.println(<span class=\"hljs-string\">\"Sum: \"<\/span> + sum);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001BigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u30662\u3064\u306e\u5024\u3092\u521d\u671f\u5316\u3057\u3001add\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u52a0\u7b97\u3092\u884c\u3044\u3001\u6b63\u3057\u3044\u7d50\u679c\u3092\u5f97\u307e\u3057\u305f\u3002BigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6570\u5024\u8a08\u7b97\u306e\u7cbe\u5ea6\u304c\u5931\u308f\u308c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u3001BigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u3068\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u6f14\u7b97\u3067\u7cbe\u5ea6\u304c\u5931\u308f\u308c\u308b\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6570\u5024\u8a08\u7b97\u306bBigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6f14\u7b97\u3084\u6bd4\u8f03\u306b\u306fBigDecimal\u304c\u63d0\u4f9b\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2473,42,1680,2780,1682],"class_list":["post-7468","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-bigdecimal","tag-java","tag-1680","tag-2780","tag-1682"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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