{"id":65954,"date":"2025-05-03T15:21:26","date_gmt":"2025-05-03T07:21:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65954\/"},"modified":"2025-05-03T15:21:26","modified_gmt":"2025-05-03T07:21:26","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e4%b8%80%e7%bb%b4%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65954\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u6709\u4ee5\u4e0b\u65b9\u5f0f\uff1a\u76f4\u63a5\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u4f7f\u7528\u7c7b\u578b\u63a8\u65ad\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u6570\u7ec4\u521d\u59cb\u5316\u5668\u521b\u5efa\u591a\u7ef4\u6570\u7ec4\u3002\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u53ef\u901a\u8fc7\u4e0b\u6807\u8fd0\u7b97\u7b26\uff0c\u4fee\u6539\u5143\u7d20\u5185\u5bb9\u4e5f\u901a\u8fc7\u4e0b\u6807\u8fd0\u7b97\u7b26\u8fdb\u884c\u3002\u6570\u7ec4\u7684\u5c5e\u6027\u5305\u62ec length \u548c getclass()\uff0c\u5206\u522b\u8fd4\u56de\u6570\u7ec4\u957f\u5ea6\u548c\u7c7b\u5bf9\u8c61\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111317093167177.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u521b\u5efa<\/strong><\/p>\n<pre>int[] myArray = new int[10]; \/\/ \u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 10 \u7684 int \u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668<\/strong><\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5}; \/\/ \u521b\u5efa\u4e00\u4e2a\u9884\u586b\u5145\u7684 int \u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u7c7b\u578b\u63a8\u65ad<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = new int[]{1, 2, 3, 4, 5}; \/\/ \u81ea\u52a8\u63a8\u65ad\u6570\u7ec4\u7c7b\u578b\u4e3a int<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u521b\u5efa\u591a\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>\u4f7f\u7528\u5d4c\u5957\u6570\u7ec4\u521d\u59cb\u5316\u5668\u521b\u5efa\u591a\u7ef4\u6570\u7ec4\uff1a<\/p>\n<pre>int[][] myMatrix = {\n    {1, 2, 3},\n    {4, 5, 6},\n    {7, 8, 9}\n}; \/\/ \u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u77e9\u9635<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<pre>int firstElement = myArray[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4fee\u6539\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u4fee\u6539\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<pre>myArray[0] = 10; \/\/ \u4fee\u6539\u7b2c\u4e00\u4e2a\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6570\u7ec4\u5c5e\u6027<\/strong><\/p>\n<ul>\n<li>length\uff1a\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6<\/li>\n<li>getClass(): \u8fd4\u56de\u6570\u7ec4\u7684\u7c7b\u5bf9\u8c61<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u521b\u5efa\u4e00\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":"<p>\u5728 java \u4e2d\uff0c\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u6709\u4ee5\u4e0b\u65b9\u5f0f\uff1a\u76f4\u63a5\u521b\u5efa\u6570\u7ec4\uff0c\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff0c\u4f7f\u7528\u7c7b\u578b\u63a8\u65ad\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u6570\u7ec4\u521d\u59cb\u5316\u5668\u521b\u5efa\u591a\u7ef4\u6570\u7ec4\u3002\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u53ef\u901a\u8fc7\u4e0b\u6807\u8fd0\u7b97\u7b26\uff0c\u4fee\u6539\u5143\u7d20\u5185\u5bb9\u4e5f\u901a\u8fc7\u4e0b\u6807\u8fd0\u7b97\u7b26\u8fdb\u884c\u3002\u6570\u7ec4\u7684\u5c5e\u6027\u5305\u62ec length \u548c getclass()\uff0c\u5206\u522b\u8fd4\u56de\u6570\u7ec4\u957f\u5ea6\u548c\u7c7b\u5bf9\u8c61\u3002 \u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4 \u76f4\u63a5\u521b\u5efa int[] myArray = new int[10]; \/\/ \u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 10 \u7684 int \u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668 int[] myArray = {1, 2, 3, 4, 5}; \/\/ \u521b\u5efa\u4e00\u4e2a\u9884\u586b\u5145\u7684 int \u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u7c7b\u578b\u63a8\u65ad \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = new int[]{1, 2, 3, 4, 5}; \/\/ \u81ea\u52a8\u63a8\u65ad\u6570\u7ec4\u7c7b\u578b\u4e3a int \u767b\u5f55\u540e\u590d\u5236 \u521b\u5efa\u591a\u7ef4\u6570\u7ec4 \u4f7f\u7528\u5d4c\u5957\u6570\u7ec4\u521d\u59cb\u5316\u5668\u521b\u5efa\u591a\u7ef4\u6570\u7ec4\uff1a int[][] myMatrix [&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-65954","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65954","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=65954"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65954\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}