{"id":66301,"date":"2025-05-03T10:44:05","date_gmt":"2025-05-03T02:44:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66301\/"},"modified":"2025-05-03T10:44:05","modified_gmt":"2025-05-03T02:44:05","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%bb%84%e5%90%88%e7%9a%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66301\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7ec4\u5408\u7684"},"content":{"rendered":"

\n java\u4e8c\u7ef4\u6570\u7ec4\u7531\u884c\u548c\u5217\u7ec4\u6210\uff0c\u53ef\u901a\u8fc7\u5d4c\u5957\u5faa\u73af\u6309\u884c\u3001\u5217\u3001\u5bf9\u89d2\u7ebf\u6216\u952f\u9f7f\u5f62\u7ec4\u5408\u8bbf\u95ee\u5143\u7d20\u3002\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u5f0f\u6709\uff1a\u6309\u884c\u904d\u5386\u6309\u5217\u904d\u5386\u5bf9\u89d2\u7ebf\u904d\u5386\u952f\u9f7f\u5f62\u904d\u5386\n<\/p><\/blockquote>\n

\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7ec4\u5408\u7684\u63d2\u56fe\"<\/p>\n

Java \u4e8c\u7ef4\u6570\u7ec4\u7684\u7ec4\u5408\u65b9\u5f0f<\/strong><\/p>\n

\u4e8c\u7ef4\u6570\u7ec4\u5728 Java \u4e2d\u7528\u4e8e\u5b58\u50a8\u6570\u636e\uff0c\u5176\u7ed3\u6784\u4e0e\u8868\u683c\u7c7b\u4f3c\uff0c\u5305\u542b\u884c\u548c\u5217\u3002\u7406\u89e3\u5982\u4f55\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u4e8e\u9ad8\u6548\u5730\u5b58\u50a8\u548c\u5904\u7406\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

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

\u8981\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n

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

int[][] arrayName = new int[numberOfRows][numberOfColumns];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff0cnumberOfRows \u548c numberOfColumns \u5206\u522b\u8868\u793a\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5177\u6709 3 \u884c\u548c 4 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n
int[][] myArray = new int[3][4];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8bbf\u95ee\u5143\u7d20<\/strong><\/p>\n
\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u65f6\uff0c\u4f7f\u7528\u4ee5\u4e0b\u7d22\u5f15\u8bed\u6cd5\uff1a<\/p>\n
arrayName[rowIndex][columnIndex]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee myArray \u4e2d\u7b2c 1 \u884c\u7b2c 2 \u5217\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n
int element = myArray[0][1];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8d4b\u503c<\/strong><\/p>\n
\u4e3a\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8d4b\u503c\u65f6\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u8bed\u6cd5\uff1a<\/p>\n
arrayName[rowIndex][columnIndex] = value;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c06 myArray \u4e2d\u7b2c 1 \u884c\u7b2c 2 \u5217\u7684\u5143\u7d20\u8bbe\u7f6e\u4e3a 5\uff1a<\/p>\n
myArray[0][1] = 5;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7ec4\u5408\u65b9\u5f0f<\/strong><\/p>\n
\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u6700\u5e38\u89c1\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\uff1a<\/p>\n
\u6309\u884c\u904d\u5386<\/strong><\/p>\n
for (int i = 0; i < numberOfRows; i++) {\n    for (int j = 0; j < numberOfColumns; j++) {\n        \/\/ \u5bf9 arrayName[i][j] \u8fdb\u884c\u64cd\u4f5c\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6309\u5217\u904d\u5386<\/strong><\/p>\n
for (int j = 0; j < numberOfColumns; j++) {\n    for (int i = 0; i < numberOfRows; i++) {\n        \/\/ \u5bf9 arrayName[i][j] \u8fdb\u884c\u64cd\u4f5c\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5bf9\u89d2\u7ebf\u904d\u5386<\/strong><\/p>\n
int min = Math.min(numberOfRows, numberOfColumns);\nfor (int i = 0; i < min; i++) {\n    \/\/ \u5bf9 arrayName[i][i] \u8fdb\u884c\u64cd\u4f5c\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u952f\u9f7f\u5f62\u904d\u5386<\/strong><\/p>\n
int min = Math.min(numberOfRows, numberOfColumns);\nfor (int i = 0; i < min; i++) {\n    \/\/ \u5bf9 arrayName[i][i] \u8fdb\u884c\u64cd\u4f5c\n    \/\/ \u5bf9 arrayName[numberOfRows - 1 - i][numberOfColumns - 1 - i] \u8fdb\u884c\u64cd\u4f5c\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5217\u51fa\u7684\u7ec4\u5408\u65b9\u5f0f\u53ea\u662f Java \u4e2d\u7528\u4e8e\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u7684\u4f17\u591a\u65b9\u5f0f\u4e2d\u7684\u4e00\u90e8\u5206\u3002\u9009\u62e9\u6700\u5408\u9002\u7684\u7ec4\u5408\u65b9\u5f0f\u53d6\u51b3\u4e8e\u8981\u6267\u884c\u7684\u64cd\u4f5c\u548c\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u7ec4\u5408\u7684\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\u4e8c\u7ef4\u6570\u7ec4\u7531\u884c\u548c\u5217\u7ec4\u6210\uff0c\u53ef\u901a\u8fc7\u5d4c\u5957\u5faa\u73af\u6309\u884c\u3001\u5217\u3001\u5bf9\u89d2\u7ebf\u6216\u952f\u9f7f\u5f62\u7ec4\u5408\u8bbf\u95ee\u5143\u7d20\u3002\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u5f0f\u6709\uff1a\u6309\u884c\u904d\u5386\u6309\u5217\u904d\u5386\u5bf9\u89d2\u7ebf\u904d\u5386\u952f\u9f7f\u5f62\u904d\u5386 Java \u4e8c\u7ef4\u6570\u7ec4\u7684\u7ec4\u5408\u65b9\u5f0f \u4e8c\u7ef4\u6570\u7ec4\u5728 Java \u4e2d\u7528\u4e8e\u5b58\u50a8\u6570\u636e\uff0c\u5176\u7ed3\u6784\u4e0e\u8868\u683c\u7c7b\u4f3c\uff0c\u5305\u542b\u884c\u548c\u5217\u3002\u7406\u89e3\u5982\u4f55\u7ec4\u5408\u4e8c\u7ef4\u6570\u7ec4\u5bf9\u4e8e\u9ad8\u6548\u5730\u5b58\u50a8\u548c\u5904\u7406\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002 \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4 \u8981\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[][] arrayName = new int[numberOfRows][numberOfColumns]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0cnumberOfRows \u548c numberOfColumns \u5206\u522b\u8868\u793a\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5177\u6709 3 \u884c\u548c 4 \u5217\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a int[][] myArray = new int[3][4]; \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u5143\u7d20 \u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u65f6\uff0c\u4f7f\u7528\u4ee5\u4e0b\u7d22\u5f15\u8bed\u6cd5\uff1a arrayName[rowIndex][columnIndex] \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u8bbf\u95ee myArray \u4e2d\u7b2c 1 \u884c\u7b2c 2 \u5217\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a int element = myArray[0][1]; \u767b\u5f55\u540e\u590d\u5236 \u8d4b\u503c \u4e3a\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8d4b\u503c\u65f6\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u8bed\u6cd5\uff1a arrayName[rowIndex][columnIndex] = value; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c06 myArray \u4e2d\u7b2c 1 […]<\/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-66301","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66301","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=66301"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66301\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}