{"id":65713,"date":"2025-05-03T14:59:15","date_gmt":"2025-05-03T06:59:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65713\/"},"modified":"2025-05-03T14:59:15","modified_gmt":"2025-05-03T06:59:15","slug":"java%e5%8f%8c%e9%87%8d%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%86%99-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65713\/","title":{"rendered":"java\u53cc\u91cd\u6570\u7ec4\u600e\u4e48\u5199"},"content":{"rendered":"

\n java\u4e2d\u53cc\u91cd\u6570\u7ec4\u662f\u4e00\u79cd\u591a\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u884c\u548c\u5217\u7ec4\u7ec7\u5143\u7d20\u3002\u521b\u5efa\u53cc\u91cd\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u3002\u901a\u8fc7\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u53ef\u4ee5\u8bbf\u95ee\u5143\u7d20\uff0c\u5e76\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u8fdb\u884c\u904d\u5386\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a3\u884c4\u5217\u7684\u53cc\u91cd\u6570\u7ec4\uff0c\u5143\u7d20\u901a\u8fc7\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u8fdb\u884c\u8bbe\u7f6e\u548c\u8bbf\u95ee\uff0c\u6700\u540e\u901a\u8fc7\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u6253\u5370\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u53cc\u91cd\u6570\u7ec4\u600e\u4e48\u5199\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u53cc\u91cd\u6570\u7ec4\u7684\u521b\u5efa\u548c\u4f7f\u7528<\/h2>\n

\u5728Java\u4e2d\uff0c\u53cc\u91cd\u6570\u7ec4\uff08\u4e5f\u79f0\u4e3a\u4e8c\u7ef4\u6570\u7ec4\uff09\u662f\u4e00\u4e2a\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u591a\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u5143\u7d20\u6309\u884c\u548c\u5217\u7ec4\u7ec7\u3002<\/p>\n

\u521b\u5efa\u53cc\u91cd\u6570\u7ec4\uff1a<\/strong><\/p>\n

int[][] arr = new int[numRows][numCols];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002<\/li>\n
  • numCols \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002<\/li>\n<\/ul>\n
    \u8bbf\u95ee\u5143\u7d20\uff1a<\/strong><\/p>\n
    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \u901a\u8fc7\u4f7f\u7528\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\uff0c\u53ef\u4ee5\u8bbf\u95ee\u53cc\u91cd\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n
    int element = arr[rowIndex][colIndex];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8bbe\u7f6e\u5143\u7d20\uff1a<\/strong><\/p>\n
    arr[rowIndex][colIndex] = value;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u904d\u5386\u53cc\u91cd\u6570\u7ec4\uff1a<\/strong><\/p>\n
    \u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6765\u904d\u5386\u53cc\u91cd\u6570\u7ec4\uff1a<\/p>\n
    for (int i = 0; i < arr.length; i++) {\n    for (int j = 0; j < arr[i].length; j++) {\n        System.out.print(arr[i][j] + \" \");\n    }\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528\u53cc\u91cd\u6570\u7ec4\uff1a<\/p>\n
    int[][] matrix = new int[3][4];\n\n\/\/ \u8bbe\u7f6e\u5143\u7d20\nmatrix[0][0] = 1;\nmatrix[0][1] = 2;\nmatrix[0][2] = 3;\nmatrix[0][3] = 4;\n\nmatrix[1][0] = 5;\nmatrix[1][1] = 6;\nmatrix[1][2] = 7;\nmatrix[1][3] = 8;\n\nmatrix[2][0] = 9;\nmatrix[2][1] = 10;\nmatrix[2][2] = 11;\nmatrix[2][3] = 12;\n\n\/\/ \u904d\u5386\u6570\u7ec4\nfor (int i = 0; i < matrix.length; i++) {\n    for (int j = 0; j < matrix[i].length; j++) {\n        System.out.print(matrix[i][j] + \" \");\n    }\n    System.out.println();\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8f93\u51fa\uff1a<\/p>\n
    1 2 3 4 \n5 6 7 8 \n9 10 11 12 <\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u53cc\u91cd\u6570\u7ec4\u600e\u4e48\u5199\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    java\u4e2d\u53cc\u91cd\u6570\u7ec4\u662f\u4e00\u79cd\u591a\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u4ee5\u884c\u548c\u5217\u7ec4\u7ec7\u5143\u7d20\u3002\u521b\u5efa\u53cc\u91cd\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\u3002\u901a\u8fc7\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u53ef\u4ee5\u8bbf\u95ee\u5143\u7d20\uff0c\u5e76\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u8fdb\u884c\u904d\u5386\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a3\u884c4\u5217\u7684\u53cc\u91cd\u6570\u7ec4\uff0c\u5143\u7d20\u901a\u8fc7\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\u8fdb\u884c\u8bbe\u7f6e\u548c\u8bbf\u95ee\uff0c\u6700\u540e\u901a\u8fc7\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u6253\u5370\u5143\u7d20\u3002 Java\u4e2d\u53cc\u91cd\u6570\u7ec4\u7684\u521b\u5efa\u548c\u4f7f\u7528 \u5728Java\u4e2d\uff0c\u53cc\u91cd\u6570\u7ec4\uff08\u4e5f\u79f0\u4e3a\u4e8c\u7ef4\u6570\u7ec4\uff09\u662f\u4e00\u4e2a\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u591a\u7ef4\u6570\u636e\u7ed3\u6784\uff0c\u5176\u4e2d\u5143\u7d20\u6309\u884c\u548c\u5217\u7ec4\u7ec7\u3002 \u521b\u5efa\u53cc\u91cd\u6570\u7ec4\uff1a int[][] arr = new int[numRows][numCols]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a numRows \u662f\u6570\u7ec4\u7684\u884c\u6570\u3002 numCols \u662f\u6570\u7ec4\u7684\u5217\u6570\u3002 \u8bbf\u95ee\u5143\u7d20\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u901a\u8fc7\u4f7f\u7528\u884c\u7d22\u5f15\u548c\u5217\u7d22\u5f15\uff0c\u53ef\u4ee5\u8bbf\u95ee\u53cc\u91cd\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a int element = arr[rowIndex][colIndex]; \u767b\u5f55\u540e\u590d\u5236 \u8bbe\u7f6e\u5143\u7d20\uff1a arr[rowIndex][colIndex] = value; \u767b\u5f55\u540e\u590d\u5236 \u904d\u5386\u53cc\u91cd\u6570\u7ec4\uff1a \u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6765\u904d\u5386\u53cc\u91cd\u6570\u7ec4\uff1a for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr[i].length; j++) { System.out.print(arr[i][j] + ” “); } […]<\/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-65713","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65713","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=65713"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65713\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}