![\"java\u4e2d\u5806\u662f\u4e00\u79cd\u4ec0\u4e48\u6837\u7684\u6570\u636e\u7ed3\u6784\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27151313\/c2efc6e5-9cea-473a-b1e2-51d417a7c717.webp\")
<\/p>\n<\/p>\n
Java\u4e2d\u7684\u5806\uff08Heap\uff09\u662f\u4e00\u79cd\u5728\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u5e38\u89c1\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5177\u4f53\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u5b8c\u5168\u4e8c\u53c9\u6811<\/strong>\u3001\u5e38\u88ab\u4f7f\u7528\u5728\u4f18\u5148\u961f\u5217\u7684\u5b9e\u73b0\u4e2d<\/strong>\u3001\u4e3b\u8981\u6709\u6700\u5c0f\u5806\u548c\u6700\u5927\u5806\u4e24\u79cd\u5f62\u5f0f<\/strong>\u3002\u6700\u5c0f\u5806\u4e2d\u7236\u8282\u70b9\u7684\u503c\u603b\u662f\u5c0f\u4e8e\u6216\u7b49\u4e8e\u5176\u5b50\u8282\u70b9\u7684\u503c\uff0c\u800c\u5728\u6700\u5927\u5806\u4e2d\u7236\u8282\u70b9\u7684\u503c\u603b\u662f\u5927\u4e8e\u6216\u7b49\u4e8e\u5176\u5b50\u8282\u70b9\u7684\u503c\u3002\u8fd9\u6837\u7684\u7279\u6027\u8ba9\u5806\u6210\u4e3a\u7ef4\u62a4\u4e00\u7ec4\u6570\u636e\u5143\u7d20\u7684\u52a8\u6001\u96c6\u5408\u65f6\uff0c\u975e\u5e38\u6709\u6548\u7684\u652f\u6301\u63d2\u5165\u548c\u5220\u9664\u6700\u5927\u6216\u6700\u5c0f\u5143\u7d20\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n \u8be6\u7ec6\u63cf\u8ff0\u6700\u5c0f\u5806\uff1a\u6700\u5c0f\u5806\u4e2d\uff0c\u6839\u8282\u70b9\uff08\u5806\u9876\uff09\u603b\u662f\u5f53\u524d\u5806\u4e2d\u7684\u6700\u5c0f\u5143\u7d20\u3002\u8fd9\u4e2a\u5c5e\u6027\u4f7f\u5f97\u6700\u5c0f\u5806\u5728\u5bf9\u6570\u636e\u6d41\u8fdb\u884c\u6392\u5e8f\u6216\u8005\u5bfb\u627e\u6570\u636e\u6d41\u4e2d\u7684\u6700\u5c0f\u503c\u65f6\u975e\u5e38\u6709\u7528\u3002\u5728\u6700\u5c0f\u5806\u4e2d\u63d2\u5165\u65b0\u7684\u5143\u7d20\u6216\u5220\u9664\u5806\u9876\u5143\u7d20\u65f6\uff0c\u5806\u4f1a\u81ea\u52a8\u91cd\u65b0\u8c03\u6574\u7ed3\u6784\u4ee5\u4fdd\u6301\u5176\u57fa\u672c\u6027\u8d28\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5206\u522b\u79f0\u4e3a\u5806\u5316\uff08Heapify\uff09\u548c\u91cd\u5efa\u5806\uff08Reheapify\uff09\u3002<\/p>\n<\/p>\n \u5806\u4f5c\u4e3a\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5177\u5907\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u7279\u6027\u548c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n \u5806\u662f\u4e00\u79cd\u7279\u522b\u7684\u5b8c\u5168\u4e8c\u53c9\u6811\uff0c\u5176\u4e2d\u5b8c\u5168\u4e8c\u53c9\u6811\u610f\u5473\u7740\u9664\u4e86\u6700\u540e\u4e00\u5c42\u5916\uff0c\u6bcf\u4e00\u5c42\u90fd\u88ab\u5b8c\u5168\u586b\u6ee1\uff0c\u4e14\u6240\u6709\u8282\u70b9\u90fd\u5411\u5de6\u5bf9\u9f50\u3002\u8fd9\u4e2a\u6027\u8d28\u4f7f\u5f97\u5806\u53ef\u4ee5\u88ab\u89c6\u4e3a\u4e00\u4e2a\u6570\u7ec4\uff0c\u53ef\u5229\u7528\u6570\u7ec4\u4e0b\u6807\u7b80\u5316\u8282\u70b9\u95f4\u7684\u5bfc\u822a\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4efb\u610f\u4e00\u4e2a\u4f4d\u4e8e\u4e0b\u6807 \u4e3b\u8981\u7684\u5806\u64cd\u4f5c\u5305\u62ec\u63d2\u5165\u8282\u70b9\uff08\u4e0a\u6d6e\uff09\u3001\u5220\u9664\u8282\u70b9\uff08\u4e0b\u6c89\uff09\u3001\u6784\u5efa\u5806\u548c\u8c03\u6574\u5806\u7684\u7ed3\u6784\u7b49\u3002\u8fd9\u4e9b\u64cd\u4f5c\u80fd\u591f\u4fdd\u8bc1\u5728\u52a8\u6001\u7ba1\u7406\u6570\u636e\u65f6\uff0c\u5806\u53ef\u4ee5\u5feb\u901f\u5730\u8c03\u6574\uff0c\u4ee5\u7ef4\u62a4\u5176\u7279\u6027\u3002<\/p>\n<\/p>\n \u5728Java\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6216\u7279\u5b9a\u7684\u7c7b\u6765\u5b9e\u73b0\u6700\u5927\u5806\u548c\u6700\u5c0f\u5806\u3002<\/p>\n<\/p>\n \u5728\u6700\u5927\u5806\u4e2d\uff0c\u7236\u8282\u70b9\u7684\u503c\u603b\u662f\u5927\u4e8e\u7b49\u4e8e\u5176\u5b50\u8282\u70b9\u7684\u503c<\/strong>\uff0c\u8fd9\u610f\u5473\u7740\u6240\u6709\u7684\u64cd\u4f5c\u90fd\u5fc5\u987b\u4ed4\u7ec6\u8bbe\u8ba1\u4ee5\u7ef4\u6301\u8fd9\u4e00\u7279\u6027\u3002\u5728\u5b9e\u73b0\u65f6\uff0c\u63d2\u5165\u64cd\u4f5c\u662f\u5c06\u65b0\u5143\u7d20\u52a0\u5230\u6570\u7ec4\u7684\u672b\u5c3e\uff0c\u7136\u540e\u8fdb\u884c\u4e0a\u6d6e\u64cd\u4f5c\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u901a\u8fc7\u8fde\u7eed\u4e0e\u7236\u8282\u70b9\u6bd4\u8f83\u5e76\u5728\u5fc5\u8981\u65f6\u4ea4\u6362\u6765\u5b8c\u6210\u3002\u5220\u9664\u64cd\u4f5c\u4e00\u822c\u6307\u7684\u662f\u5220\u9664\u6839\u8282\u70b9\uff0c\u5373\u5806\u4e2d\u7684\u6700\u5927\u5143\u7d20\uff0c\u8fd9\u65f6\u5c06\u6839\u8282\u70b9\u4e0e\u6570\u7ec4\u6700\u672b\u7aef\u7684\u5143\u7d20\u4ea4\u6362\uff0c\u7136\u540e\u6267\u884c\u4e0b\u6c89\u64cd\u4f5c\u3002<\/p>\n<\/p>\n \u6700\u5c0f\u5806\u7684\u5b9e\u73b0\u903b\u8f91\u4e0e\u6700\u5927\u5806\u7684\u5b9e\u73b0\u7c7b\u4f3c\uff0c\u4f46\u662f\u65b9\u5411\u76f8\u53cd\uff0c\u7236\u8282\u70b9\u7684\u503c\u603b\u662f\u5c0f\u4e8e\u7b49\u4e8e\u5176\u5b50\u8282\u70b9\u7684\u503c<\/strong>\u3002\u8fd9\u540c\u6837\u9700\u8981\u5728\u63d2\u5165\u548c\u5220\u9664\uff08\u7279\u522b\u662f\u5220\u9664\u6839\u8282\u70b9\uff09\u65f6\u8fdb\u884c\u76f8\u5e94\u7684\u5806\u5316\u64cd\u4f5c\u6765\u7ef4\u6301\u5806\u7684\u6027\u8d28\u3002<\/p>\n<\/p>\n Java\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u7684\u4f18\u5148\u961f\u5217\u7c7b \u5b9e\u9645\u4e0a\uff0c \u5806\u5728\u591a\u79cd\u5e94\u7528\u573a\u666f\u4e2d\u90fd\u5341\u5206\u6709\u7528\u3002<\/p>\n<\/p>\n \u56e0\u4e3a\u5806\u80fd\u591f\u5feb\u901f\u8bbf\u95ee\u5230\u6700\u5927\u6216\u6700\u5c0f\u5143\u7d20\uff0c\u5b83\u7ecf\u5e38\u88ab\u7528\u4e8e\u6570\u636e\u6d41\u7684\u5b9e\u65f6\u6392\u5e8f\u548c\u5904\u7406\u3002\u4f8b\u5982\uff0c\u5728\u5904\u7406\u5b9e\u65f6\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u5feb\u901f\u63d0\u53d6\u51fa\u6700\u76f8\u5173\u6216\u6700\u7d27\u6025\u7684\u4fe1\u606f\u3002<\/p>\n<\/p>\n \u5806\u6392\u5e8f\u662f\u4e00\u79cd\u5229\u7528\u5806\u7279\u6027\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5b83\u9996\u5148\u5c06\u5143\u7d20\u96c6\u5408\u6784\u5efa\u6210\u4e00\u4e2a\u5806\uff0c\u7136\u540e\u901a\u8fc7\u4e0d\u65ad\u79fb\u9664\u5806\u9876\u7684\u5143\u7d20\u5e76\u7ef4\u62a4\u5806\u7684\u6027\u8d28\u6765\u8fbe\u5230\u6392\u5e8f\u7684\u76ee\u7684\u3002<\/p>\n<\/p>\n \u5806\u4f5c\u4e3a\u4e00\u4e2a\u52a8\u6001\u6570\u636e\u7ed3\u6784\uff0c\u9700\u8981\u901a\u8fc7\u5404\u79cd\u64cd\u4f5c\u7ef4\u62a4\u5176\u7279\u6027\uff0c\u8fd9\u5c31\u6d89\u53ca\u5230\u8c03\u8bd5\u548c\u9519\u8bef\u5904\u7406\u3002<\/p>\n<\/p>\n \u5806\u7684\u7ef4\u62a4\u9700\u8981\u786e\u4fdd\u5728\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u540e\uff0c\u4f9d\u65e7\u6ee1\u8db3\u5806\u7684\u6027\u8d28\u3002\u8fd9\u5f80\u5f80\u6d89\u53ca\u590d\u6742\u7684\u6307\u9488\u64cd\u4f5c\u548c\u6570\u7ec4\u7ba1\u7406\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u590d\u6742\u6570\u636e\u65f6\u3002<\/p>\n<\/p>\n \u7531\u4e8e\u5806\u5185\u90e8\u7ed3\u6784\u8f83\u4e3a\u590d\u6742\uff0c\u8c03\u8bd5\u53ef\u80fd\u6bd4\u7ebf\u6027\u6570\u636e\u7ed3\u6784\u66f4\u4e3a\u590d\u6742\u3002\u5229\u7528\u5355\u5143\u6d4b\u8bd5\u548c\u65ad\u8a00\u53ef\u4ee5\u5e2e\u52a9\u68c0\u9a8c\u5806\u7684\u64cd\u4f5c\u662f\u5426\u4fdd\u6301\u4e86\u6570\u636e\u7ed3\u6784\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n \u5728\u8ba8\u8bba\u6570\u636e\u7ed3\u6784\u4e2d\u7684\u5806\u65f6\uff0c\u4e0d\u80fd\u5ffd\u7565Java\u5185\u5b58\u7ba1\u7406\u4e2d\u7684\u201c\u5806\u201d\u6982\u5ff5\u3002<\/p>\n<\/p>\n Java\u4f7f\u7528\u4e86\u540d\u4e3a\u201c\u5806\u201d\u7684\u5185\u5b58\u533a\u57df\uff0c\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u5b9e\u4f8b\u3002Java\u5806\u548c\u6570\u636e\u7ed3\u6784\u4e2d\u7684\u5806\u662f\u4e24\u4e2a\u5b8c\u5168\u4e0d\u540c\u7684\u6982\u5ff5\uff0c\u4f46\u5b83\u4eec\u7684\u5171\u540c\u4e4b\u5904\u5728\u4e8e\uff0c\u90fd\u662f\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u52a8\u6001\u7ba1\u7406\u6570\u636e\u7684\u5730\u65b9\u3002<\/p>\n<\/p>\n Java\u5806\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u5783\u573e\u56de\u6536\uff08Garbage Collection\uff09\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u56de\u6536\u4e0d\u518d\u4f7f\u7528\u7684\u5bf9\u8c61\uff0c\u4ee5\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002\u8fd9\u4e0e\u6570\u636e\u7ed3\u6784\u4e2d\u7684\u5806\u8fdb\u884c\u5143\u7d20\u7ef4\u62a4\u5f62\u6210\u4e86\u4e00\u4e2a\u6709\u8da3\u7684\u5bf9\u6bd4\u3002<\/p>\n<\/p>\n \u603b\u7684\u6765\u8bf4\uff0cJava\u4e2d\u7684\u5806\u4f5c\u4e3a\u4e00\u79cd\u4f18\u96c5\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e0d\u4ec5\u5728\u7b97\u6cd5\u8bbe\u8ba1\u4e2d\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5e94\u7528\u573a\u666f\uff0c\u800c\u4e14\u5176\u5728Java\u7684\u5185\u5b58\u7ba1\u7406\u4e2d\u4e5f\u626e\u6f14\u4e86\u6838\u5fc3\u7684\u89d2\u8272\u3002\u7406\u89e3\u548c\u638c\u63e1\u5806\u7684\u7279\u6027\u5bf9\u4e8e\u4efb\u4f55\u60f3\u8981\u63d0\u9ad8\u7f16\u7a0b\u548c\u7cfb\u7edf\u8bbe\u8ba1\u6280\u80fd\u7684Java\u7a0b\u5e8f\u5458\u800c\u8a00\u90fd\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002<\/p>\n<\/p>\n \u4ec0\u4e48\u662fJava\u4e2d\u7684\u5806\u6570\u636e\u7ed3\u6784\uff1f<\/strong> \u5806\u6570\u636e\u7ed3\u6784\u5728Java\u4e2d\u6709\u4ec0\u4e48\u5e94\u7528\uff1f<\/strong> \u4e3a\u4ec0\u4e48Java\u4e2d\u4f7f\u7528\u5806\u6570\u636e\u7ed3\u6784\uff1f<\/strong>\u4e00\u3001\u5806\u7684\u57fa\u672c\u6982\u5ff5\u4e0e\u7279\u6027<\/h3>\n<\/p>\n
\u5806\u7684\u6027\u8d28<\/h4>\n<\/p>\n
i<\/code>\u7684\u8282\u70b9\uff0c\u5176\u5de6\u5b50\u8282\u70b9\u7684\u4e0b\u6807\u662f2*i+1<\/code>\uff0c\u53f3\u5b50\u8282\u70b9\u7684\u4e0b\u6807\u662f2*i+2<\/code>\uff0c\u800c\u5176\u7236\u8282\u70b9\u7684\u4e0b\u6807\u662f(i-1)\/2<\/code>\u3002<\/p>\n<\/p>\n\u5806\u7684\u64cd\u4f5c<\/h4>\n<\/p>\n
\u4e8c\u3001\u6700\u5927\u5806\u4e0e\u6700\u5c0f\u5806\u7684\u5b9e\u73b0<\/h3>\n<\/p>\n
\u6700\u5927\u5806\u7684\u5b9e\u73b0<\/h4>\n<\/p>\n
\u6700\u5c0f\u5806\u7684\u5b9e\u73b0<\/h4>\n<\/p>\n
\u4e09\u3001Java\u4e2d\u7684\u4f18\u5148\u961f\u5217\u548c\u5806<\/h3>\n<\/p>\n
PriorityQueue<\/code>\uff0c\u5b83\u5728\u5e95\u5c42\u662f\u901a\u8fc7\u6700\u5c0f\u5806\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<\/p>\n\u4f18\u5148\u961f\u5217\u7684\u4f7f\u7528<\/h4>\n<\/p>\n
PriorityQueue<\/code>\u7c7b\u63d0\u4f9b\u4e86\u5b9e\u73b0\u4f18\u5148\u961f\u5217\u6570\u636e\u7ed3\u6784\u7684\u6240\u6709\u64cd\u4f5c\uff0c\u5982add<\/code>\uff08\u63d2\u5165\u5143\u7d20\uff09\u3001poll<\/code>\uff08\u5f39\u51fa\u6700\u5c0f\u5143\u7d20\uff09\u3001peek<\/code>\uff08\u83b7\u53d6\u6700\u5c0f\u5143\u7d20\u4f46\u4e0d\u5f39\u51fa\uff09\u7b49\u3002\u5b83\u53ef\u4ee5\u4fdd\u8bc1\u5143\u7d20\u6309\u7167\u81ea\u7136\u987a\u5e8f\u6216\u6307\u5b9a\u7684Comparator<\/code>\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n<\/p>\nPriorityQueue<\/code>\u548c\u5806\u7684\u5173\u7cfb<\/h4>\n<\/p>\nPriorityQueue<\/code>\u662f\u5bf9\u5806\u7684\u4e00\u79cd\u5177\u4f53\u5e94\u7528\uff0c\u5e76\u6269\u5c55\u4e86\u5806\u7684\u80fd\u529b\uff0c\u5141\u8bb8\u7528\u6237\u5b9a\u4e49\u5143\u7d20\u7684\u4f18\u5148\u7ea7\uff0c\u8fd9\u610f\u5473\u7740\u4e0d\u4ec5\u53ef\u4ee5\u5904\u7406\u6574\u6570\uff0c\u4e5f\u53ef\u4ee5\u5904\u7406\u590d\u6742\u7684\u5bf9\u8c61\u3002<\/p>\n<\/p>\n\u56db\u3001\u5806\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u6570\u636e\u6d41\u6392\u5e8f\u548c\u5904\u7406<\/h4>\n<\/p>\n
\u5806\u6392\u5e8f<\/h4>\n<\/p>\n
\u4e94\u3001\u5806\u7684\u7ef4\u62a4\u548c\u8c03\u8bd5<\/h3>\n<\/p>\n
\u5806\u7ef4\u62a4\u7684\u6311\u6218<\/h4>\n<\/p>\n
\u8c03\u8bd5\u5806\u5b9e\u73b0<\/h4>\n<\/p>\n
\u516d\u3001Java\u5806\u548c\u5185\u5b58\u7ba1\u7406<\/h3>\n<\/p>\n
Java\u5185\u5b58\u5806<\/h4>\n<\/p>\n
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