{"id":28505,"date":"2024-03-18T17:59:57","date_gmt":"2024-03-18T08:59:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aeisempty%e9%96%a2%e6%95%b0%e3%81%ae%e3%82%a8%e3%83%a9%e3%83%bc%e3%82%92%e8%a7%a3%e6%b6%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f\/"},"modified":"2024-03-22T18:45:23","modified_gmt":"2024-03-22T09:45:23","slug":"java%e3%81%aeisempty%e9%96%a2%e6%95%b0%e3%81%ae%e3%82%a8%e3%83%a9%e3%83%bc%e3%82%92%e8%a7%a3%e6%b6%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%aeisempty%e9%96%a2%e6%95%b0%e3%81%ae%e3%82%a8%e3%83%a9%e3%83%bc%e3%82%92%e8%a7%a3%e6%b6%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f\/","title":{"rendered":"Java\u306eisempty\u95a2\u6570\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6d88\u3059\u308b\u65b9\u6cd5\u306f\uff1f"},"content":{"rendered":"

\u8aac\u660e\u306b\u57fa\u3065\u3044\u3066\u3001\u5177\u4f53\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001isempty()\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3044\u304f\u3064\u304b\u306e\u53ef\u80fd\u6027\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n

    \n
  1. isEmpty()\u306f\u3001\u7a7a\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/li>\n
  2. \u6587\u5b57\u5217<\/li>\n<\/ol>\n
    String<\/span> str<\/span> =<\/span> \"hello\"<\/span>;\r\nboolean<\/span> isEmpty<\/span> =<\/span> str.isEmpty();\r\n<\/code><\/pre>\n
      \n
    1. \u79c1\u305f\u3061\u306e\u4f1a\u793e\u306e\u30e2\u30c3\u30c8\u30fc\u306f\u300c\u9867\u5ba2\u7b2c\u4e00\u300d\u3067\u3059\u3002<\/li>\n
    2. \u7a7a()<\/li>\n
    3. \u30b8\u30e3\u30d0\u306elang\u30d1\u30c3\u30b1\u30fc\u30b8\u306eString<\/li>\n<\/ol>\n
      import<\/span> java.lang.String;\r\n<\/code><\/pre>\n
        \n
      1. \u4e2d\u8eab\u304c\u7a7a\u3067\u3059\u3002<\/li>\n
      2. isEmpty()\u3000\u306f\u7a7a\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u95a2\u6570\u3067\u3059\u3002<\/li>\n<\/ol>\n
        String str;\r\nboolean<\/span> isEmpty<\/span> =<\/span> str.isEmpty(); \/\/ \u7f16\u8bd1\u9519\u8bef<\/span>\r\n<\/code><\/pre>\n
        \u5177\u4f53\u306a\u30a8\u30e9\u30fc\u60c5\u5831\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3001\u3088\u308a\u5177\u4f53\u7684\u306b\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u624b\u52a9\u3051\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u8aac\u660e\u306b\u57fa\u3065\u3044\u3066\u3001\u5177\u4f53\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001isempty()\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3044\u304f\u3064\u304b\u306e\u53ef\u80fd\u6027\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002 isEmpty()\u306f\u3001\u7a7a\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28505","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u306eisempty\u95a2\u6570\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6d88\u3059\u308b\u65b9\u6cd5\u306f\uff1f - 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