{"id":64149,"date":"2025-05-03T10:58:29","date_gmt":"2025-05-03T02:58:29","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64149\/"},"modified":"2025-05-03T10:58:29","modified_gmt":"2025-05-03T02:58:29","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%bc%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64149\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5f04"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528 java \u4e8c\u7ef4\u6570\u7ec4\uff1a\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528 int[][] arrayname = new int[numrows][numcols] \u8bed\u6cd5\uff0c\u5176\u4e2d numrows \u4e3a\u884c\u6570\uff0cnumcols \u4e3a\u5217\u6570\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528 arrayname[rowindex][columnindex] \u8bbf\u95ee\u7279\u5b9a\u884c\u548c\u5217\u7684\u5143\u7d20\u3002\u8d4b\u503c\uff1a\u4f7f\u7528 arrayname[rowindex][columnindex] = value \u4e3a\u7279\u5b9a\u5143\u7d20\u8d4b\u503c\u3002\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6240\u6709\u5143\u7d20\uff1afor (int rowindex =\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/02\/2024110215342124977.jpg\" class=\"aligncenter\" title=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5f04\u63d2\u56fe\" alt=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5f04\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528 Java \u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u77e9\u5f62\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>int[][] arrayName = new int[numRows][numCols];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d numRows \u662f\u884c\u6570\uff0cnumCols \u662f\u5217\u6570\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u8bbf\u95ee\u5143\u7d20<\/strong><\/p>\n<p>\u53ef\u4ee5\u50cf\u8bbf\u95ee\u4e00\u7ef4\u6570\u7ec4\u4e00\u6837\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n<pre>arrayName[rowIndex][columnIndex];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d rowIndex \u662f\u884c\u7d22\u5f15\uff0ccolumnIndex \u662f\u5217\u7d22\u5f15\u3002<\/p>\n<p><strong>\u8d4b\u503c<\/strong><\/p>\n<p>\u53ef\u4ee5\u50cf\u8d4b\u503c\u7ed9\u4e00\u7ef4\u6570\u7ec4\u4e00\u6837\u8d4b\u503c\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n<pre>arrayName[rowIndex][columnIndex] = value;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff1a<\/p>\n<pre>for (int rowIndex = 0; rowIndex &lt; arrayName.length; rowIndex++) {\n  for (int columnIndex = 0; columnIndex &lt; arrayName[rowIndex].length; columnIndex++) {\n    \/\/ \u5904\u7406 arr[rowIndex][columnIndex]\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u521b\u5efa\u3001\u8bbf\u95ee\u548c\u6253\u5370\u4e8c\u7ef4\u6570\u7ec4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre>public class TwoDimensionalArrayExample {\n\n  public static void main(String[] args) {\n    int[][] array = new int[3][4];\n\n    \/\/ \u8d4b\u503c\n    array[0][0] = 1;\n    array[0][1] = 2;\n    array[0][2] = 3;\n    array[0][3] = 4;\n\n    array[1][0] = 5;\n    array[1][1] = 6;\n    array[1][2] = 7;\n    array[1][3] = 8;\n\n    array[2][0] = 9;\n    array[2][1] = 10;\n    array[2][2] = 11;\n    array[2][3] = 12;\n\n    \/\/ \u6253\u5370\n    for (int rowIndex = 0; rowIndex &lt; array.length; rowIndex++) {\n      for (int columnIndex = 0; columnIndex &lt; array[rowIndex].length; columnIndex++) {\n        System.out.print(array[rowIndex][columnIndex] + \" \");\n      }\n      System.out.println();\n    }\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8be5\u4ee3\u7801\u5c06\u6253\u5370\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n<pre>1 2 3 4\n5 6 7 8\n9 10 11 12<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5f04\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528 java \u4e8c\u7ef4\u6570\u7ec4\uff1a\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528 int[][] arrayname = new int[numrows][numcols] \u8bed\u6cd5\uff0c\u5176\u4e2d numrows \u4e3a\u884c\u6570\uff0cnumcols \u4e3a\u5217\u6570\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528 arrayname[rowindex][columnindex] \u8bbf\u95ee\u7279\u5b9a\u884c\u548c\u5217\u7684\u5143\u7d20\u3002\u8d4b\u503c\uff1a\u4f7f\u7528 arrayname[rowindex][columnindex] = value \u4e3a\u7279\u5b9a\u5143\u7d20\u8d4b\u503c\u3002\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u6240\u6709\u5143\u7d20\uff1afor (int rowindex = \u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528 Java \u4e8c\u7ef4\u6570\u7ec4 \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4 \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u77e9\u5f62\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a int[][] arrayName = new int[numRows][numCols]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d numRows \u662f\u884c\u6570\uff0cnumCols \u662f\u5217\u6570\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u8bbf\u95ee\u5143\u7d20 \u53ef\u4ee5\u50cf\u8bbf\u95ee\u4e00\u7ef4\u6570\u7ec4\u4e00\u6837\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a arrayName[rowIndex][columnIndex]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d rowIndex \u662f\u884c\u7d22\u5f15\uff0ccolumnIndex \u662f\u5217\u7d22\u5f15\u3002 \u8d4b\u503c \u53ef\u4ee5\u50cf\u8d4b\u503c\u7ed9\u4e00\u7ef4\u6570\u7ec4\u4e00\u6837\u8d4b\u503c\u7ed9\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a arrayName[rowIndex][columnIndex] = value; \u767b\u5f55\u540e\u590d\u5236 \u904d\u5386\u4e8c\u7ef4\u6570\u7ec4 \u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff1a for (int [&hellip;]<\/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-64149","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64149","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=64149"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64149\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}