{"id":65899,"date":"2025-05-03T14:13:13","date_gmt":"2025-05-03T06:13:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65899\/"},"modified":"2025-05-03T14:13:13","modified_gmt":"2025-05-03T06:13:13","slug":"java%e6%95%b0%e7%bb%84%e5%85%83%e7%b4%a0%e6%80%8e%e4%b9%88%e5%88%9d%e5%a7%8b%e5%8c%96-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65899\/","title":{"rendered":"java\u6570\u7ec4\u5143\u7d20\u600e\u4e48\u521d\u59cb\u5316"},"content":{"rendered":"

\n \u6709\u4e24\u79cd\u65b9\u5f0f\u521d\u59cb\u5316 java \u6570\u7ec4\u5143\u7d20\uff1a\u663e\u5f0f\u521d\u59cb\u5316\uff1a\u76f4\u63a5\u6307\u5b9a\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\u3002\u9690\u5f0f\u521d\u59cb\u5316\uff1a\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff08\u57fa\u672c\u7c7b\u578b\u4e3a 0 \u6216 null\uff0c\u5f15\u7528\u7c7b\u578b\u4e3a null\uff09\u3002\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u5143\u7d20\u600e\u4e48\u521d\u59cb\u5316\u63d2\u56fe\"<\/p>\n

Java \u6570\u7ec4\u5143\u7d20\u7684\u521d\u59cb\u5316<\/strong><\/p>\n

\u5982\u4f55\u521d\u59cb\u5316 Java \u6570\u7ec4\u5143\u7d20\uff1f<\/strong><\/p>\n

\u60a8\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f\u521d\u59cb\u5316 Java \u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n

1. \u663e\u5f0f\u521d\u59cb\u5316<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u663e\u5f0f\u521d\u59cb\u5316\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n

int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u76f4\u63a5\u4e3a\u6bcf\u4e2a\u5143\u7d20\u6307\u5b9a\u503c\u3002<\/p>\n
2. \u9690\u5f0f\u521d\u59cb\u5316<\/strong><\/p>\n
Java \u6570\u7ec4\u7684\u5143\u7d20\u5728\u58f0\u660e\u65f6\u4f1a\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff1a<\/p>\n
    \n
  •  \u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a<\/strong>0\u3001false \u6216 null<\/li>\n
  •  \u5f15\u7528\u7c7b\u578b\uff1a<\/strong>null<\/li>\n<\/ul>\n
    \u4f8b\u5982\uff1a<\/p>\n
    int[] numbers = new int[5];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cnumbers \u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u5c06\u81ea\u52a8\u521d\u59cb\u5316\u4e3a 0\u3002<\/p>\n
    \u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n
    \u663e\u5f0f\u521d\u59cb\u5316\uff1a<\/strong><\/p>\n
      \n
    • \u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n
    • \u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\u4e3a\u6bcf\u4e2a\u5143\u7d20\u521b\u5efa\u4e00\u4e2a\u65b0\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n
      \u9690\u5f0f\u521d\u59cb\u5316\uff1a<\/strong><\/p>\n
        \n
      • Java \u4f1a\u81ea\u52a8\u5206\u914d\u9ed8\u8ba4\u503c\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n
      • \n
        \u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f\uff1a<\/p>\n
          \n
        • \u6574\u6570\uff1a0<\/li>\n
        • \u6d6e\u70b9\u6570\uff1a0.0<\/li>\n
        • \u5e03\u5c14\u503c\uff1afalse<\/li>\n<\/ul>\n<\/li>\n
        • \u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f null\u3002<\/li>\n<\/ul>\n
          \u6ce8\u610f\uff1a<\/strong><\/p>\n
            \n
          • Java \u6570\u7ec4\u7684\u957f\u5ea6\u5728\u521b\u5efa\u540e\u4e0d\u80fd\u66f4\u6539\u3002<\/li>\n
          • \u9690\u5f0f\u521d\u59cb\u5316\u53ea\u9002\u7528\u4e8e\u6570\u7ec4\u58f0\u660e\u8bed\u53e5\u3002\u5982\u679c\u4f7f\u7528\u5faa\u73af\u6216\u5176\u4ed6\u65b9\u6cd5\u5206\u914d\u5143\u7d20\u503c\uff0c\u5219\u5fc5\u987b\u663e\u5f0f\u521d\u59cb\u5316\u5b83\u4eec\u3002<\/li>\n<\/ul>\n
            \u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u5143\u7d20\u600e\u4e48\u521d\u59cb\u5316\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u6709\u4e24\u79cd\u65b9\u5f0f\u521d\u59cb\u5316 java \u6570\u7ec4\u5143\u7d20\uff1a\u663e\u5f0f\u521d\u59cb\u5316\uff1a\u76f4\u63a5\u6307\u5b9a\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\u3002\u9690\u5f0f\u521d\u59cb\u5316\uff1a\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff08\u57fa\u672c\u7c7b\u578b\u4e3a 0 \u6216 null\uff0c\u5f15\u7528\u7c7b\u578b\u4e3a null\uff09\u3002 Java \u6570\u7ec4\u5143\u7d20\u7684\u521d\u59cb\u5316 \u5982\u4f55\u521d\u59cb\u5316 Java \u6570\u7ec4\u5143\u7d20\uff1f \u60a8\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f\u521d\u59cb\u5316 Java \u6570\u7ec4\u5143\u7d20\uff1a 1. \u663e\u5f0f\u521d\u59cb\u5316 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u663e\u5f0f\u521d\u59cb\u5316\u6570\u7ec4\u5143\u7d20\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u76f4\u63a5\u4e3a\u6bcf\u4e2a\u5143\u7d20\u6307\u5b9a\u503c\u3002 2. \u9690\u5f0f\u521d\u59cb\u5316 Java \u6570\u7ec4\u7684\u5143\u7d20\u5728\u58f0\u660e\u65f6\u4f1a\u81ea\u52a8\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff1a \u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a0\u3001false \u6216 null \u5f15\u7528\u7c7b\u578b\uff1anull \u4f8b\u5982\uff1a int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cnumbers \u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u5c06\u81ea\u52a8\u521d\u59cb\u5316\u4e3a 0\u3002 \u8be6\u7ec6\u8bf4\u660e\uff1a \u663e\u5f0f\u521d\u59cb\u5316\uff1a \u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u3002 \u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\u4e3a\u6bcf\u4e2a\u5143\u7d20\u521b\u5efa\u4e00\u4e2a\u65b0\u5b9e\u4f8b\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65899","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65899","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65899"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65899\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}