{"id":66322,"date":"2025-05-03T17:45:06","date_gmt":"2025-05-03T09:45:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66322\/"},"modified":"2025-05-03T17:45:06","modified_gmt":"2025-05-03T09:45:06","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e8%8e%b7%e5%be%97%e6%95%b0%e7%bb%84%e7%9a%84%e4%b8%8b%e6%a0%87-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66322\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u83b7\u5f97\u6570\u7ec4\u7684\u4e0b\u6807"},"content":{"rendered":"

\n \u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u4e0b\u6807\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\uff0c\u5176\u6b65\u9aa4\u5982\u4e0b\uff1a\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u5e76\u521d\u59cb\u5316\u5143\u7d20\u3002\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 [] \u6307\u5b9a\u8981\u8bbf\u95ee\u5143\u7d20\u7684\u7d22\u5f15\u3002\u5c06\u83b7\u53d6\u7684\u5143\u7d20\u5b58\u50a8\u5728\u4e00\u4e2a\u53d8\u91cf\u4e2d\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u600e\u4e48\u83b7\u5f97\u6570\u7ec4\u7684\u4e0b\u6807\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u4e0b\u6807<\/strong><\/p>\n

Java \u6570\u7ec4\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e0b\u6807\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u6765\u5b9e\u73b0\u3002\u4e0b\u6807\u8fd0\u7b97\u7b26\uff08[]\uff09\u540e\u8ddf\u7d22\u5f15\u503c\uff0c\u8be5\u7d22\u5f15\u503c\u6307\u793a\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u5728\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e\u3002<\/p>\n

\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \n

    \u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\uff1a<\/p>\n

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

    int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  2. \n
    \u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u7684\u7d22\u5f15\uff1a<\/p>\n
    int index = 2; \/\/ \u9700\u8981\u83b7\u53d6\u4e0b\u6807\u4e3a 2 \u7684\u5143\u7d20\nint element = numbers[index];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c55\u793a\u4e86\u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e0b\u6807\uff1a<\/p>\n
    int[] ages = {25, 30, 35, 40, 45};\n\nint index = 2;\nint age = ages[index];\n\nSystem.out.println(\"\u5e74\u9f84\uff1a\" + age); \/\/ \u8f93\u51fa\uff1a35<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u4e0b\u6807\u4e3a 0\u3002<\/li>\n
    • \u5982\u679c\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u5c06\u629b\u51fa IndexOutOfBoundsException\u3002<\/li>\n
    • \u5bf9\u4e8e\u591a\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u4f7f\u7528\u5d4c\u5957\u7684\u4e0b\u6807\u8fd0\u7b97\u7b26\u6765\u83b7\u53d6\u7279\u5b9a\u5143\u7d20\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u83b7\u5f97\u6570\u7ec4\u7684\u4e0b\u6807\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u4e0b\u6807\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\uff0c\u5176\u6b65\u9aa4\u5982\u4e0b\uff1a\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u5e76\u521d\u59cb\u5316\u5143\u7d20\u3002\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 [] \u6307\u5b9a\u8981\u8bbf\u95ee\u5143\u7d20\u7684\u7d22\u5f15\u3002\u5c06\u83b7\u53d6\u7684\u5143\u7d20\u5b58\u50a8\u5728\u4e00\u4e2a\u53d8\u91cf\u4e2d\u3002 \u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u4e0b\u6807 Java \u6570\u7ec4\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e0b\u6807\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u6765\u5b9e\u73b0\u3002\u4e0b\u6807\u8fd0\u7b97\u7b26\uff08[]\uff09\u540e\u8ddf\u7d22\u5f15\u503c\uff0c\u8be5\u7d22\u5f15\u503c\u6307\u793a\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u5728\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e\u3002 \u6b65\u9aa4\uff1a \u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u7684\u7d22\u5f15\uff1a int index = 2; \/\/ \u9700\u8981\u83b7\u53d6\u4e0b\u6807\u4e3a 2 \u7684\u5143\u7d20 int element = numbers[index]; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u4ee5\u4e0b\u4ee3\u7801\u6bb5\u5c55\u793a\u4e86\u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e0b\u6807\uff1a int[] ages = {25, 30, 35, 40, 45}; int index = 2; int age = ages[index]; System.out.println(“\u5e74\u9f84\uff1a” […]<\/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-66322","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66322","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=66322"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66322\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}