{"id":66540,"date":"2025-05-03T12:27:18","date_gmt":"2025-05-03T04:27:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66540\/"},"modified":"2025-05-03T12:27:18","modified_gmt":"2025-05-03T04:27:18","slug":"%e6%80%8e%e4%b9%88new%e4%b8%80%e4%b8%aa%e6%95%b0%e7%bb%84java-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66540\/","title":{"rendered":"\u600e\u4e48new\u4e00\u4e2a\u6570\u7ec4java"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u521b\u5efa\u6570\u7ec4\u9700\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u7c7b\u578b\u548c\u5927\u5c0f\uff0c\u5982\uff1aint[] arrayname = new int[size]\u3002\u5176\u4ed6\u8981\u70b9\u5305\u62ec\uff1a\u6570\u7ec4\u5927\u5c0f\u5fc5\u987b\u975e\u8d1f\u3002\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u6570\u5b57\u7c7b\u578b\u7684 0 \u6216\u5bf9\u8c61\u7c7b\u578b\u7684 null\u3002\u53ef\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u6307\u5b9a\u5143\u7d20\uff0c\u5982\uff1aint[] numbers = {1, 2, 3, 4, 5}\u3002java \u6570\u7ec4\u5927\u5c0f\u56fa\u5b9a\uff0c\u9700\u8981\u52a8\u6001\u5927\u5c0f\u7684\u96c6\u5408\u65f6\u53ef\u8003\u8651\u4f7f\u7528 arraylist \u6216 linkedlist \u7b49\u52a8\u6001\u6570\u636e\u7ed3\u6784\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111606004890441.jpg\" class=\"aligncenter\" title=\"\u600e\u4e48new\u4e00\u4e2a\u6570\u7ec4java\u63d2\u56fe\" alt=\"\u600e\u4e48new\u4e00\u4e2a\u6570\u7ec4java\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u6570\u7ec4<\/strong><\/p>\n<p>Java \u4e2d\u521b\u5efa\u6570\u7ec4\u9700\u8981\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u7684\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre>int[] arrayName = new int[size];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684\u6574\u6570\u6570\u7ec4\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5176\u4ed6\u8981\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u5927\u5c0f\u5fc5\u987b\u662f\u975e\u8d1f\u6574\u6570\u3002<\/li>\n<li>\u6570\u7ec4\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff08\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\u4e3a 0\uff0c\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\u4e3a null\uff09\u3002<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u6307\u5b9a\u6570\u7ec4\u5143\u7d20\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>Java \u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u65e6\u521b\u5efa\u6570\u7ec4\uff0c\u5c31\u4e0d\u80fd\u66f4\u6539\u5176\u5927\u5c0f\u3002\u5982\u679c\u9700\u8981\u52a8\u6001\u5927\u5c0f\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 ArrayList \u6216 LinkedList \u7b49\u52a8\u6001\u6570\u636e\u7ed3\u6784\u3002<\/li>\n<li>Java \u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u53d8\u91cf\u5e76\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48new\u4e00\u4e2a\u6570\u7ec4java\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\u521b\u5efa\u6570\u7ec4\u9700\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u7c7b\u578b\u548c\u5927\u5c0f\uff0c\u5982\uff1aint[] arrayname = new int[size]\u3002\u5176\u4ed6\u8981\u70b9\u5305\u62ec\uff1a\u6570\u7ec4\u5927\u5c0f\u5fc5\u987b\u975e\u8d1f\u3002\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u6570\u5b57\u7c7b\u578b\u7684 0 \u6216\u5bf9\u8c61\u7c7b\u578b\u7684 null\u3002\u53ef\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u6307\u5b9a\u5143\u7d20\uff0c\u5982\uff1aint[] numbers = {1, 2, 3, 4, 5}\u3002java \u6570\u7ec4\u5927\u5c0f\u56fa\u5b9a\uff0c\u9700\u8981\u52a8\u6001\u5927\u5c0f\u7684\u96c6\u5408\u65f6\u53ef\u8003\u8651\u4f7f\u7528 arraylist \u6216 linkedlist \u7b49\u52a8\u6001\u6570\u636e\u7ed3\u6784\u3002 \u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u6570\u7ec4 Java \u4e2d\u521b\u5efa\u6570\u7ec4\u9700\u8981\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u7684\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u683c\u5f0f\u5982\u4e0b\uff1a int[] arrayName = new int[size]; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684\u6574\u6570\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4ed6\u8981\u70b9\uff1a \u6570\u7ec4\u5927\u5c0f\u5fc5\u987b\u662f\u975e\u8d1f\u6574\u6570\u3002 \u6570\u7ec4\u5143\u7d20\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff08\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\u4e3a 0\uff0c\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\u4e3a null\uff09\u3002 \u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u4e00\u6b21\u6027\u6307\u5b9a\u6570\u7ec4\u5143\u7d20\uff1a 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-66540","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66540","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=66540"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66540\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}