{"id":64395,"date":"2025-05-03T14:07:09","date_gmt":"2025-05-03T06:07:09","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64395\/"},"modified":"2025-05-03T14:07:09","modified_gmt":"2025-05-03T06:07:09","slug":"java%e4%b8%ad%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e8%b6%8a%e7%95%8c%e6%80%8e%e4%b9%88%e8%a7%a3%e5%86%b3-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64395\/","title":{"rendered":"JAVA\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u600e\u4e48\u89e3\u51b3"},"content":{"rendered":"

\n \u89e3\u51b3java\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u6570\u7ec4\u8fb9\u754c\u68c0\u67e5\uff1a\u5728\u8bbf\u95ee\u5143\u7d20\u524d\u68c0\u67e5\u4e0b\u6807\u662f\u5426\u5728\u8fb9\u754c\u5185\u3002\u4f7f\u7528\u5e93\u51fd\u6570arrays.boundscheck()\u8fdb\u884c\u8fb9\u754c\u68c0\u67e5\u3002\u907f\u514d\u5d4c\u5957\u5faa\u73af\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u3002\u4f7f\u7528\u591a\u7ef4\u6570\u7ec4\u7c7b\uff08\u4f8b\u5982arraylist\uff09\u81ea\u52a8\u5904\u7406\u8fb9\u754c\u68c0\u67e5\u3002\u4f7f\u7528\u8c03\u8bd5\u5668\u6216\u6253\u5370\u8bed\u53e5\u8bc6\u522b\u5e76\u89e3\u51b3\u8d8a\u754c\u95ee\u9898\u3002\n<\/p><\/blockquote>\n

\"JAVA\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u600e\u4e48\u89e3\u51b3\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n

\u5728\u4f7f\u7528Java\u4e8c\u7ef4\u6570\u7ec4\u65f6\uff0c\u6570\u7ec4\u8d8a\u754c\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u3002\u5b83\u6307\u7684\u662f\u8bd5\u56fe\u8bbf\u95ee\u6570\u7ec4\u4e2d\u4e0d\u5b58\u5728\u7684\u5143\u7d20\uff0c\u4ece\u800c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002<\/p>\n

\u95ee\u9898\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n

\u89e3\u51b3\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u7684\u57fa\u672c\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a<\/p>\n

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

1. \u6570\u7ec4\u8fb9\u754c\u68c0\u67e5<\/strong><\/p>\n

\u5728\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u4e4b\u524d\uff0c\u68c0\u67e5\u4e0b\u6807\u662f\u5426\u5728\u6570\u7ec4\u8fb9\u754c\u5185\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

int[][] array = new int[3][4];\n\nfor (int i = 0; i < array.length; i++) {\n    for (int j = 0; j < array[i].length; j++) {\n        \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20array[i][j]\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528\u5e93\u51fd\u6570<\/strong><\/p>\n
Java\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3aArrays.boundsCheck()\u7684\u5e93\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u8fdb\u884c\u8fb9\u754c\u68c0\u67e5\u3002\u4f7f\u7528\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
int[][] array = new int[3][4];\n\nfor (int i = 0; i < array.length; i++) {\n    for (int j = 0; j < array[i].length; j++) {\n        \/\/ \u4f7f\u7528Arrays.boundsCheck()\u8fdb\u884c\u8fb9\u754c\u68c0\u67e5\n        if (Arrays.boundsCheck(array, i, j)) {\n            \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20array[i][j]\n        }\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4ed6\u5efa\u8bae\uff1a<\/strong><\/p>\n
    \n
  • \u5728\u53ef\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u907f\u514d\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\uff0c\u56e0\u4e3a\u8fd9\u5bb9\u6613\u5bfc\u81f4\u8d8a\u754c\u9519\u8bef\u3002<\/li>\n
  • \u8003\u8651\u4f7f\u7528\u591a\u7ef4\u6570\u7ec4\u7c7b\uff0c\u4f8b\u5982ArrayList >\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u5904\u7406\u8fb9\u754c\u68c0\u67e5\u3002 <\/li>\n
  • \u4f7f\u7528\u8c03\u8bd5\u5668\u6216\u6253\u5370\u8bed\u53e5\u6765\u5e2e\u52a9\u8bc6\u522b\u5e76\u89e3\u51b3\u8d8a\u754c\u95ee\u9898\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fJAVA\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u600e\u4e48\u89e3\u51b3\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u89e3\u51b3java\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u6570\u7ec4\u8fb9\u754c\u68c0\u67e5\uff1a\u5728\u8bbf\u95ee\u5143\u7d20\u524d\u68c0\u67e5\u4e0b\u6807\u662f\u5426\u5728\u8fb9\u754c\u5185\u3002\u4f7f\u7528\u5e93\u51fd\u6570arrays.boundscheck()\u8fdb\u884c\u8fb9\u754c\u68c0\u67e5\u3002\u907f\u514d\u5d4c\u5957\u5faa\u73af\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u3002\u4f7f\u7528\u591a\u7ef4\u6570\u7ec4\u7c7b\uff08\u4f8b\u5982arraylist\uff09\u81ea\u52a8\u5904\u7406\u8fb9\u754c\u68c0\u67e5\u3002\u4f7f\u7528\u8c03\u8bd5\u5668\u6216\u6253\u5370\u8bed\u53e5\u8bc6\u522b\u5e76\u89e3\u51b3\u8d8a\u754c\u95ee\u9898\u3002 Java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6cd5 \u5728\u4f7f\u7528Java\u4e8c\u7ef4\u6570\u7ec4\u65f6\uff0c\u6570\u7ec4\u8d8a\u754c\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u3002\u5b83\u6307\u7684\u662f\u8bd5\u56fe\u8bbf\u95ee\u6570\u7ec4\u4e2d\u4e0d\u5b58\u5728\u7684\u5143\u7d20\uff0c\u4ece\u800c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002 \u95ee\u9898\u89e3\u51b3\u65b9\u6cd5\uff1a \u89e3\u51b3\u6570\u7ec4\u8d8a\u754c\u95ee\u9898\u7684\u57fa\u672c\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 1. \u6570\u7ec4\u8fb9\u754c\u68c0\u67e5 \u5728\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u4e4b\u524d\uff0c\u68c0\u67e5\u4e0b\u6807\u662f\u5426\u5728\u6570\u7ec4\u8fb9\u754c\u5185\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a int[][] array = new int[3][4]; for (int i = 0; i < array.length; i++) { for (int j = 0; j < array[i].length; j++) { \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20array[i][j] } } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528\u5e93\u51fd\u6570 Java\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3aArrays.boundsCheck()\u7684\u5e93\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u8fdb\u884c\u8fb9\u754c\u68c0\u67e5\u3002\u4f7f\u7528\u793a\u4f8b\u5982\u4e0b\uff1a int[][] array = new int[3][4]; for (int i = 0; i < array.length; […]<\/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-64395","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64395","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=64395"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64395\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}