{"id":66969,"date":"2025-05-03T14:09:29","date_gmt":"2025-05-03T06:09:29","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66969\/"},"modified":"2025-05-03T14:09:29","modified_gmt":"2025-05-03T06:09:29","slug":"java%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66969\/","title":{"rendered":"java\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4"},"content":{"rendered":"

\n \u53ef\u5728 java \u4e2d\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1a\u76f4\u63a5\u521b\u5efa\uff08\u4f7f\u7528 new \u5173\u952e\u5b57\uff09\u548c\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u3002\u76f4\u63a5\u521b\u5efa\u8bed\u6cd5\u4e3a int[][] array = new int[numrows][numcols]\uff0c\u5176\u4e2d numrows \u4e3a\u884c\u6570\uff0cnumcols \u4e3a\u5217\u6570\u3002\u6570\u7ec4\u521d\u59cb\u5316\u5668\u8bed\u6cd5\u4e3a { {element-1-1}, {element-1-2} }\uff0c\u5b50\u6570\u7ec4\u884c\u6570\u5fc5\u987b\u76f8\u7b49\u3002\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\u7684\u8bed\u6cd5\u4e3a array[row][column]\uff0c\u5176\u4e2d row \u4e3a\u884c\u7d22\u5f15\uff0ccolumn \u4e3a\u5217\u7d22\u5f15\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n

\u76f4\u63a5\u521b\u5efa<\/strong><\/p>\n

\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

int[][] array = new int[numRows][numCols];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \n
  • numRows \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u3002<\/li>\n
  • numCols \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u5217\u6570\u3002<\/li>\n<\/ul>\n
    \u4f8b\u5982\uff1a<\/strong><\/p>\n
    int[][] matrix = new int[5][3]; \/\/ \u521b\u5efa\u4e00\u4e2a 5 \u884c 3 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668<\/strong><\/p>\n
    \u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u5982\uff1a<\/p>\n
    int[][] array = {\n  {1, 2, 3},\n  {4, 5, 6},\n  {7, 8, 9}\n};<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\uff1a<\/strong>\u5b50\u6570\u7ec4\u7684\u884c\u6570\u5fc5\u987b\u76f8\u7b49\u3002<\/p>\n
    \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n
    \u8981\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u7684\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n
    array[row][column];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff1a<\/p>\n
    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
      \n
    • row \u662f\u5143\u7d20\u6240\u5728\u7684\u884c\u7d22\u5f15\u3002<\/li>\n
    • column \u662f\u5143\u7d20\u6240\u5728\u7684\u5217\u7d22\u5f15\u3002<\/li>\n<\/ul>\n
      \u4f8b\u5982\uff1a<\/strong><\/p>\n
      int element = matrix[2][1]; \/\/ \u83b7\u53d6\u7b2c 3 \u884c\u7b2c 2 \u5217\u7684\u5143\u7d20\uff08\u503c\u4e3a 5\uff09<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u53ef\u5728 java \u4e2d\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff1a\u76f4\u63a5\u521b\u5efa\uff08\u4f7f\u7528 new \u5173\u952e\u5b57\uff09\u548c\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u3002\u76f4\u63a5\u521b\u5efa\u8bed\u6cd5\u4e3a int[][] array = new int[numrows][numcols]\uff0c\u5176\u4e2d numrows \u4e3a\u884c\u6570\uff0cnumcols \u4e3a\u5217\u6570\u3002\u6570\u7ec4\u521d\u59cb\u5316\u5668\u8bed\u6cd5\u4e3a { {element-1-1}, {element-1-2} }\uff0c\u5b50\u6570\u7ec4\u884c\u6570\u5fc5\u987b\u76f8\u7b49\u3002\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u5143\u7d20\u7684\u8bed\u6cd5\u4e3a array[row][column]\uff0c\u5176\u4e2d row \u4e3a\u884c\u7d22\u5f15\uff0ccolumn \u4e3a\u5217\u7d22\u5f15\u3002 \u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4 \u76f4\u63a5\u521b\u5efa \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a int[][] array = new int[numRows][numCols]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b numRows \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u3002 numCols \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u5217\u6570\u3002 \u4f8b\u5982\uff1a int[][] matrix = new int[5][3]; \/\/ \u521b\u5efa\u4e00\u4e2a 5 \u884c 3 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668 \u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u5982\uff1a int[][] array […]<\/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-66969","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66969","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=66969"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66969\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}