{"id":31429,"date":"2022-11-01T19:56:18","date_gmt":"2024-02-16T23:07:17","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84object%e6%98%af%e4%b8%80%e4%b8%aaobject%e6%88%96%e8%80%85%e5%85%b6%e4%bb%96%e7%b1%bb%e5%9e%8b%e7%9a%84%e4%b8%9c%e8%a5%bf%e5%90%97%ef%bc%9f\/"},"modified":"2024-04-28T22:29:56","modified_gmt":"2024-04-28T14:29:56","slug":"java%e7%9a%84object%e6%98%af%e4%b8%80%e4%b8%aaobject%e6%88%96%e8%80%85%e5%85%b6%e4%bb%96%e7%b1%bb%e5%9e%8b%e7%9a%84%e4%b8%9c%e8%a5%bf%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84object%e6%98%af%e4%b8%80%e4%b8%aaobject%e6%88%96%e8%80%85%e5%85%b6%e4%bb%96%e7%b1%bb%e5%9e%8b%e7%9a%84%e4%b8%9c%e8%a5%bf%e5%90%97%ef%bc%9f\/","title":{"rendered":"Java\u7684Object\u662f\u4e00\u4e2aObject\u6216\u8005\u5176\u4ed6\u7c7b\u578b\u7684\u4e1c\u897f\u5417\uff1f"},"content":{"rendered":"<h1>\u95ee\u7b54\u8282\u76ee\u6216\u7c7b\u4f3c\u7684\u6d3b\u52a8<\/h1>\n<p>\u4ee5\u4e0b\u662f\u5bf9\u8be5\u53e5\u7684\u6c49\u8bed\u672c\u5730\u5316\u91ca\u4e49\uff1aJava\u4e2d\uff0c\u6240\u6709\u6570\u7ec4\u548c\u7c7b\u90fd\u9690\u5f0f\u7ee7\u627f\u4e86Object\u7c7b\u3002\u8bf7\u95ee\u662f\u5426\u662f\u5bf9\u8fd8\u662f\u9519\uff1f<\/p>\n<h1>\u56de\u7b54\u4e4b\u7c7b\u7684\u4e1c\u897f<\/h1>\n<p>\u8fd9\u4e2a\uff0c\u6211\u81ea\u5df1\u4e5f\u7ecf\u5e38\u4f1a\u8bf4\u8fd9\u6837\u7684\u8bdd\uff0c\u5982\u679c\u4f60\u5c1d\u8bd5\u9605\u8bfb\u65e5\u6587\u7684JavaDoc\u7684\u8bdd\u3002<\/p>\n<blockquote><p>Object\u7c7b\u662f\u7c7b\u5c42\u6b21\u7ed3\u6784\u7684\u6839\u3002\u6240\u6709\u7684\u7c7b\u90fd\u4f1a\u6709Object\u4f5c\u4e3a\u5176\u7236\u7c7b\u3002\u5305\u62ec\u6570\u7ec4\u5728\u5185\u7684\u6240\u6709\u5bf9\u8c61\u90fd\u4f1a\u5b9e\u73b0\u8fd9\u4e2a\u7c7b\u7684\u65b9\u6cd5\u3002<\/p><\/blockquote>\n<p>\u5199\u7684\u662f\u90a3\u6837\u7684\u3002<\/p>\n<p>\u7136\u800c\uff0c\u7b54\u6848\u662f\u5426\u5b9a\u7684\u3002<\/p>\n<p>\u5728Java\u4e2d\uff0c\u5e76\u4e0d\u662f\u6240\u6709\u7684\u6570\u7ec4\u548c\u7c7b\u90fd\u4f1a\u9690\u5f0f\u7ee7\u627fObject\u7c7b\u3002\u5176\u4e2d\u6709\u4e00\u4e9b\u4f8b\u5916\u3002<\/p>\n<h1>\u7279\u4f8b\u7c7b\u522b<\/h1>\n<p>\u4f8b\u5916\u7684\u60c5\u51b5\u662fObject\u7c7b\u3002<br \/>\nObject\u7c7b\u4e0d\u7ee7\u627fObject\u3002<br \/>\n\u5f53\u7136\u662f\u8fd9\u6837\u4e86\u3002<br \/>\n\u5982\u679cObject\u7ee7\u627fObject\uff0c<br \/>\n\u6267\u884cObjcet::new\u2192super();\u2192Object::new\u2192super();\u2192\u4ee5\u6b64\u7c7b\u63a8<br \/>\n\u6784\u9020\u51fd\u6570\u5c31\u4f1a\u65e0\u9650\u9012\u5f52\u3002<br \/>\n\u5c31\u50cf\u201cGNU&#8217;s Not Unix!\u201d\u4e00\u6837\uff01<\/p>\n<h1>\u4f60\u7ee7\u627f\u4e86\u4ec0\u4e48\u4e1c\u897f\uff1f<\/h1>\n<p>\u5982\u679c\u8fd9\u6837\u505a\uff0c\u6211\u4eec\u4f1a\u5173\u6ce8Object\u7c7b\u7ee7\u627f\u4e86\u4ec0\u4e48\u3002<br \/>\n\u7279\u522b\u662f\u5728Object::new\u4e4b\u540e\u3002<br \/>\n\u6240\u4ee5\u6211\u5728\u4ee3\u7801\u4e2d\u8fdb\u884c\u4e86\u786e\u8ba4\u3002<br \/>\njava<br \/>\nSystem.out.println(new Object().getClass().getSuperclass().toString());<\/p>\n<blockquote><p>\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u51fa\u73b0\u5f02\u5e38\uff1a&#8221;main&#8221; java.lang.NullPointerException<\/p><\/blockquote>\n<p>\u6ee1\u5c4f\u5237\u7269\u54c1\u3002<\/p>\n<h1>&#8220;\u8d60\u54c1\u4e4b\u7c7b\u7684&#8221; zh\u012b de)<\/h1>\n<p>\u987a\u4fbf\u770b\u770bJava\u7684\u8bed\u8a00\u89c4\u8303\u5427\u3002<\/p>\n<blockquote><p>\u7c7b\u5bf9\u8c61\u662f\u6240\u6709\u5176\u4ed6\u7c7b\u7684\u8d85\u7c7b(\u00a78.1.4)\u3002<\/p><\/blockquote>\n<p>\u771f\u7684\u5199\u5728\u4e0a\u9762\u5566\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u95ee\u7b54\u8282\u76ee\u6216\u7c7b\u4f3c\u7684\u6d3b\u52a8 \u4ee5\u4e0b\u662f\u5bf9\u8be5\u53e5\u7684\u6c49\u8bed\u672c\u5730\u5316\u91ca\u4e49\uff1aJava\u4e2d\uff0c\u6240\u6709\u6570\u7ec4\u548c\u7c7b\u90fd\u9690\u5f0f\u7ee7\u627f\u4e86Object\u7c7b\u3002\u8bf7\u95ee\u662f [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31429","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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