{"id":66517,"date":"2025-05-03T14:41:22","date_gmt":"2025-05-03T06:41:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66517\/"},"modified":"2025-05-03T14:41:22","modified_gmt":"2025-05-03T06:41:22","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%a0%b7-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66517\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u6837"},"content":{"rendered":"

\n \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u4ee5\u7f51\u683c\u5b58\u50a8\u5143\u7d20\u7684\u96c6\u5408\uff0c\u5177\u6709\u884c\u548c\u5217\u4e24\u4e2a\u7ef4\u5ea6\u3002\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u65f6\u5e94\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\uff0c\u8bbf\u95ee\u5143\u7d20\u9700\u5206\u522b\u63d0\u4f9b\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u3002\u4e8c\u7ef4\u6570\u7ec4\u7684\u4f18\u70b9\u5305\u62ec\u7ec4\u7ec7\u6570\u636e\u3001\u904d\u5386\u65b9\u4fbf\u548c\u5b58\u50a8\u9ad8\u6548\uff0c\u7f3a\u70b9\u662f\u8017\u7528\u5185\u5b58\u4e14\u65e0\u6cd5\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u3002\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u5f0f\u6709\u624b\u52a8\u521d\u59cb\u5316\u3001\u6570\u7ec4\u521d\u59cb\u5316\u5668\u548c\u6d41\u521d\u59cb\u5316\u3002\n<\/p><\/blockquote>\n

\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u6837\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n

\u4ec0\u4e48\u662f\u4e8c\u7ef4\u6570\u7ec4\uff1f<\/strong><\/p>\n

\u4e8c\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u7f51\u683c\u4e2d\u7684\u5143\u7d20\u96c6\u5408\uff0c\u5b83\u5177\u6709\u4e24\u4e2a\u7ef4\u5ea6\uff1a\u884c\u548c\u5217\u3002<\/p>\n

\u5982\u4f55\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1f<\/strong><\/p>\n

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

\u8981\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

int[][] myArray = new int[numRows][numColumns];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • myArray \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n
  • numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002<\/li>\n
  • numColumns \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002<\/li>\n<\/ul>\n
    \u5982\u4f55\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\uff1f<\/strong><\/p>\n
    \u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n
    myArray[row][column]<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff1a<\/p>\n
      \n
    • row \u662f\u8981\u8bbf\u95ee\u7684\u884c\u7684\u7d22\u5f15\u3002<\/li>\n
    • column \u662f\u8981\u8bbf\u95ee\u7684\u5217\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n
      \u4e8c\u7ef4\u6570\u7ec4\u7684\u4f18\u70b9<\/strong><\/p>\n
        \n
      •  \u7ec4\u7ec7\u6570\u636e\uff1a<\/strong>\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u5c06\u6570\u636e\u7ec4\u7ec7\u6210\u6709\u610f\u4e49\u7684\u7f51\u683c\u7ed3\u6784\u3002<\/li>\n
      •  \u6613\u4e8e\u904d\u5386\uff1a<\/strong>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u53ef\u4ee5\u8f7b\u677e\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\u3002<\/li>\n
      •  \u9ad8\u6548\u5b58\u50a8\uff1a<\/strong>\u4e0e\u5b58\u50a8\u76f8\u540c\u5143\u7d20\u7684\u591a\u4e2a\u4e00\u7ef4\u6570\u7ec4\u76f8\u6bd4\uff0c\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u5b58\u50a8\u6570\u636e\u3002<\/li>\n<\/ul>\n
        \u4e8c\u7ef4\u6570\u7ec4\u7684\u7f3a\u70b9<\/strong><\/p>\n
          \n
        •  \u5185\u5b58\u6d88\u8017\uff1a<\/strong>\u4e8c\u7ef4\u6570\u7ec4\u53ef\u80fd\u6bd4\u540c\u7b49\u7684\u4e00\u7ef4\u6570\u7ec4\u4f7f\u7528\u66f4\u591a\u7684\u5185\u5b58\u3002<\/li>\n
        •  \u9650\u5236\u52a8\u6001\u5927\u5c0f\u8c03\u6574\uff1a<\/strong>\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u540e\uff0c\u4e0d\u80fd\u8c03\u6574\u5176\u5927\u5c0f\u3002<\/li>\n<\/ul>\n
          \u5982\u4f55\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\uff1f<\/strong><\/p>\n
          \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e4b\u4e00\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/p>\n
            \n
          •  \u624b\u52a8\u521d\u59cb\u5316\uff1a<\/strong>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u624b\u52a8\u5c06\u5143\u7d20\u5206\u914d\u7ed9\u6570\u7ec4\u3002<\/li>\n
          •  \u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a<\/strong>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u5206\u914d\u591a\u4e2a\u5143\u7d20\u3002<\/li>\n
          •  \u6d41\u521d\u59cb\u5316\uff1a<\/strong>\u4f7f\u7528\u6d41\u4ece\u6570\u636e\u6e90\u586b\u5145\u5143\u7d20\u3002<\/li>\n<\/ul>\n
            \u793a\u4f8b<\/strong><\/p>\n
            \/\/ \u521b\u5efa\u4e00\u4e2a 3 \u884c 4 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4\nint[][] myArray = new int[3][4];\n\n\/\/ \u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u624b\u52a8\u521d\u59cb\u5316\u6570\u7ec4\nfor (int i = 0; i < myArray.length; i++) {\n    for (int j = 0; j < myArray[i].length; j++) {\n        myArray[i][j] = (i * 4) + j;\n    }\n}\n\n\/\/ \u8bbf\u95ee\u5e76\u6253\u5370\u6570\u7ec4\u5143\u7d20\nfor (int[] row : myArray) {\n    for (int element : row) {\n        System.out.print(element + \" \");\n    }\n    System.out.println();\n}<\/pre>\n
             \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
            \u8f93\u51fa\uff1a<\/p>\n
            0 1 2 3\n4 5 6 7\n8 9 10 11<\/pre>\n
             \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
            \u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u6837\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u4ee5\u7f51\u683c\u5b58\u50a8\u5143\u7d20\u7684\u96c6\u5408\uff0c\u5177\u6709\u884c\u548c\u5217\u4e24\u4e2a\u7ef4\u5ea6\u3002\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u65f6\u5e94\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\uff0c\u8bbf\u95ee\u5143\u7d20\u9700\u5206\u522b\u63d0\u4f9b\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u3002\u4e8c\u7ef4\u6570\u7ec4\u7684\u4f18\u70b9\u5305\u62ec\u7ec4\u7ec7\u6570\u636e\u3001\u904d\u5386\u65b9\u4fbf\u548c\u5b58\u50a8\u9ad8\u6548\uff0c\u7f3a\u70b9\u662f\u8017\u7528\u5185\u5b58\u4e14\u65e0\u6cd5\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u3002\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u5f0f\u6709\u624b\u52a8\u521d\u59cb\u5316\u3001\u6570\u7ec4\u521d\u59cb\u5316\u5668\u548c\u6d41\u521d\u59cb\u5316\u3002 Java \u4e2d\u4e8c\u7ef4\u6570\u7ec4 \u4ec0\u4e48\u662f\u4e8c\u7ef4\u6570\u7ec4\uff1f \u4e8c\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u7f51\u683c\u4e2d\u7684\u5143\u7d20\u96c6\u5408\uff0c\u5b83\u5177\u6709\u4e24\u4e2a\u7ef4\u5ea6\uff1a\u884c\u548c\u5217\u3002 \u5982\u4f55\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1f \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8981\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a int[][] myArray = new int[numRows][numColumns]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a myArray \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002 numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002 numColumns \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002 \u5982\u4f55\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\uff1f \u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a myArray[row][column] \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a row \u662f\u8981\u8bbf\u95ee\u7684\u884c\u7684\u7d22\u5f15\u3002 column \u662f\u8981\u8bbf\u95ee\u7684\u5217\u7684\u7d22\u5f15\u3002 \u4e8c\u7ef4\u6570\u7ec4\u7684\u4f18\u70b9 \u7ec4\u7ec7\u6570\u636e\uff1a\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u5c06\u6570\u636e\u7ec4\u7ec7\u6210\u6709\u610f\u4e49\u7684\u7f51\u683c\u7ed3\u6784\u3002 \u6613\u4e8e\u904d\u5386\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u53ef\u4ee5\u8f7b\u677e\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\u3002 \u9ad8\u6548\u5b58\u50a8\uff1a\u4e0e\u5b58\u50a8\u76f8\u540c\u5143\u7d20\u7684\u591a\u4e2a\u4e00\u7ef4\u6570\u7ec4\u76f8\u6bd4\uff0c\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u5b58\u50a8\u6570\u636e\u3002 \u4e8c\u7ef4\u6570\u7ec4\u7684\u7f3a\u70b9 \u5185\u5b58\u6d88\u8017\uff1a\u4e8c\u7ef4\u6570\u7ec4\u53ef\u80fd\u6bd4\u540c\u7b49\u7684\u4e00\u7ef4\u6570\u7ec4\u4f7f\u7528\u66f4\u591a\u7684\u5185\u5b58\u3002 \u9650\u5236\u52a8\u6001\u5927\u5c0f\u8c03\u6574\uff1a\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u540e\uff0c\u4e0d\u80fd\u8c03\u6574\u5176\u5927\u5c0f\u3002 \u5982\u4f55\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\uff1f \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e4b\u4e00\u521d\u59cb\u5316\u4e8c\u7ef4\u6570\u7ec4\uff1a \u624b\u52a8\u521d\u59cb\u5316\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u624b\u52a8\u5c06\u5143\u7d20\u5206\u914d\u7ed9\u6570\u7ec4\u3002 \u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u5206\u914d\u591a\u4e2a\u5143\u7d20\u3002 \u6d41\u521d\u59cb\u5316\uff1a\u4f7f\u7528\u6d41\u4ece\u6570\u636e\u6e90\u586b\u5145\u5143\u7d20\u3002 \u793a\u4f8b \/\/ \u521b\u5efa\u4e00\u4e2a 3 \u884c 4 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4 int[][] myArray = new int[3][4]; \/\/ […]<\/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-66517","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66517","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=66517"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66517\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}