{"id":203031,"date":"2025-05-22T08:01:42","date_gmt":"2025-05-22T00:01:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203031\/"},"modified":"2025-05-22T08:01:42","modified_gmt":"2025-05-22T00:01:42","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e6%97%a0%e9%94%81%e5%b9%b6%e8%a1%8c%e8%ae%a1%e7%ae%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203031\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff1f<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff1f\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u8fc7\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\u6765\u7ba1\u7406\u5e76\u53d1\uff0c\u4ece\u800c\u53ef\u4ee5\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\u3002Java 8 \u5f15\u5165\u4e86 Stream API\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5e76\u884c\u5904\u7406\u6570\u636e\u96c6\u5408\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b\uff1a\u5e76\u884c\u6392\u5e8f<\/strong><\/p>\n

\u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u5e76\u884c\u6392\u5e8f\u7684\u5b9e\u6218\u6848\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff1a<\/p>\n

List<Integer> numbers = Arrays.asList(1, 3, 5, 2, 4, 6);\n\n\/\/ \u4f7f\u7528 Stream \u5e76\u884c\u6392\u5e8f\nList<Integer> sortedNumbers = numbers.stream()\n    .sorted()\n    .toList();<\/pre>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cList.stream()<\/code> \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u987a\u5e8f\u6d41\uff0c\u7136\u540e\u4f7f\u7528 sorted()<\/code> \u65b9\u6cd5\u6309\u7167\u81ea\u7136\u987a\u5e8f\u5bf9\u6d41\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002toList()<\/code> \u65b9\u6cd5\u5c06\u6392\u5e8f\u540e\u7684\u6d41\u8f6c\u6362\u4e3a\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002<\/p>\n
Stream API \u5185\u90e8\u4f7f\u7528 Fork\/Join \u6846\u67b6\u6765\u5e76\u884c\u5904\u7406\u6570\u636e\u96c6\u5408\u3002\u5b83\u5c06\u5217\u8868\u5212\u5206\u4e3a\u8f83\u5c0f\u7684\u5757\uff0c\u7136\u540e\u5728\u72ec\u7acb\u7684\u7ebf\u7a0b\u6c60\u4e2d\u5e76\u884c\u5904\u7406\u8fd9\u4e9b\u5757\u3002\u6700\u540e\u7531\u4e3b\u7ebf\u7a0b\u6536\u96c6\u5e76\u5408\u5e76\u6392\u5e8f\u540e\u7684\u5757\u3002<\/p>\n
\u65e0\u9501\u5e76\u884c\u7684\u7279\u70b9<\/strong><\/p>\n
\u51fd\u6570\u5f0f\u7f16\u7a0b\u5b9e\u73b0\u7684\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n
    \n
  • \u7ebf\u7a0b\u5b89\u5168\uff1a<\/strong>\u7531\u4e8e\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u56e0\u6b64\u6ca1\u6709\u5171\u4eab\u72b6\u6001\u5bfc\u81f4\u7684\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002<\/li>\n
  • \u9ad8\u6027\u80fd\uff1a<\/strong>\u5e76\u884c\u5904\u7406\u53ef\u4ee5\u5145\u5206\u5229\u7528\u591a\u6838\u5904\u7406\u5668\uff0c\u63d0\u9ad8\u8ba1\u7b97\u6548\u7387\u3002<\/li>\n
  • \u6613\u4e8e\u7f16\u5199\uff1a<\/strong>Stream API \u63d0\u4f9b\u4e86\u7b80\u6d01\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u5e76\u53d1\u5904\u7406\u63a5\u53e3\u3002<\/li>\n<\/ul>\n
    \u5176\u4ed6\u65e0\u9501\u5e76\u884c\u6280\u5de7<\/strong><\/p>\n
    \u9664\u4e86 Stream API\uff0cJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u6280\u672f\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff0c\u4f8b\u5982\uff1a<\/p>\n
      \n
    • ConcurrentHashMap<\/strong>\uff1a\u4e00\u79cd\u7ebf\u7a0b\u5b89\u5168\u7684\u5e76\u53d1\u54c8\u5e0c\u8868\uff0c\u5141\u8bb8\u5e76\u884c\u8bfb\u53d6\u548c\u5199\u5165\u3002<\/li>\n
    • AtomicLong<\/strong>\uff1a\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\u7684 long \u7c7b\u578b\u53d8\u91cf\uff0c\u53ef\u4ee5\u5b9e\u73b0\u65e0\u9501\u7684\u9012\u589e\u548c\u9012\u51cf\u64cd\u4f5c\u3002<\/li>\n
    • java.util.concurrent<\/strong> \u5305\uff1a\u63d0\u4f9b\u5404\u79cd\u5e76\u53d1\u5de5\u5177\uff0c\u4f8b\u5982\u9501\u3001\u6805\u680f\u548c\u7ebf\u7a0b\u6c60\u3002<\/li>\n<\/ul>\n
      \u4eca\u5929\u5173\u4e8e\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76\u884c\u8ba1\u7b97\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5b9e\u73b0\u65e0\u9501\u5e76...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203031","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203031","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203031"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203031\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}