{"id":202602,"date":"2025-05-22T08:57:03","date_gmt":"2025-05-22T00:57:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202602\/"},"modified":"2025-05-22T08:57:03","modified_gmt":"2025-05-22T00:57:03","slug":"%e5%9c%a8-java-%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e6%97%b6%e5%a6%82%e4%bd%95%e7%a1%ae%e4%bf%9d%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8%e6%80%a7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202602\/","title":{"rendered":"\u5728 Java \u4e2d\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u65f6\u5982\u4f55\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u6027\uff1f"},"content":{"rendered":"

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

\u5728 Java \u4e2d\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u65f6\u5982\u4f55\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u6027\uff1f<\/h1>\n

\u4f60\u5728\u5b66\u4e60\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587\u300a\u5728 Java \u4e2d\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u65f6\u5982\u4f55\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u6027\uff1f\u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<\/span>\uff0c\u5982\u679c\u4f60\u60f3\u63d0\u5347\u81ea\u5df1\u7684\u5f00\u53d1\u80fd\u529b\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5927\u5bb6\u8981\u77e5\u9053\u7f16\u7a0b\u7406\u8bba\u57fa\u7840\u548c\u5b9e\u6218\u64cd\u4f5c\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u54e6\uff01<\/p>\n

\u5982\u4f55\u4fdd\u8bc1 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u7ebf\u7a0b\u5b89\u5168\u6027\uff1a\u4e0d\u53ef\u53d8\u5bf9\u8c61\uff1a\u786e\u4fdd\u51fd\u6570\u5f0f\u6570\u636e\u7ed3\u6784\u53ca\u5176\u5143\u7d20\u4e0d\u53ef\u53d8\uff0c\u4ee5\u9632\u6b62\u6570\u636e\u7ade\u4e89\u3002\u7eaf\u51fd\u6570\uff1a\u4f7f\u7528\u4e0d\u4f1a\u6539\u53d8\u8f93\u5165\u6216\u5177\u6709\u72b6\u6001\u7684\u51fd\u6570\uff0c\u786e\u4fdd\u4e00\u81f4\u548c\u53ef\u9884\u6d4b\u7684\u7ed3\u679c\u3002\u540c\u6b65\u5916\u90e8\u53ef\u53d8\u72b6\u6001\uff1a\u5982\u679c\u8bbf\u95ee\u53ef\u53d8\u5916\u90e8\u72b6\u6001\uff0c\u4f7f\u7528\u9501\u6216\u539f\u5b50\u53d8\u91cf\u786e\u4fdd\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u3002<\/p>\n

<\/p>\n

\u5982\u4f55\u5728 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168\u6027<\/strong><\/p>\n

Java \u4e2d\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\uff08FP\uff09\u4f7f\u7528\u4e0d\u53ef\u53d8\u5bf9\u8c61\u548c\u7eaf\u51fd\u6570\uff0c\u63d0\u4f9b\u4e86\u5e76\u53d1\u7f16\u7a0b\u7684\u5929\u7136\u4f18\u52bf\u3002\u7136\u800c\uff0c\u8981\u786e\u4fdd\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u7684\u7ebf\u7a0b\u5b89\u5168\u6027\uff0c\u9700\u8981\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n

\u4e0d\u53ef\u53d8\u5bf9\u8c61<\/strong><\/p>\n

\u786e\u4fdd\u51fd\u6570\u5f0f\u6570\u636e\u7ed3\u6784\uff08\u5982\u6d41\u548c\u4e0d\u53ef\u53d8\u96c6\u5408\uff09\u53ca\u5176\u5143\u7d20\u662f\u4e0d\u53ef\u53d8\u7684\u3002\u8fd9\u9632\u6b62\u4e86\u591a\u4e2a\u7ebf\u7a0b\u610f\u5916\u4fee\u6539\u540c\u4e00\u5bf9\u8c61\uff0c\u4ece\u800c\u907f\u514d\u4e86\u6570\u636e\u7ade\u4e89\u3002<\/p>\n

\u7eaf\u51fd\u6570<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u63d0\u5021\u4f7f\u7528\u7eaf\u51fd\u6570\uff0c\u5b83\u4eec\u4e0d\u4f1a\u6539\u53d8\u5176\u8f93\u5165\u6216\u5177\u6709\u72b6\u6001\u3002\u8fd9\u786e\u4fdd\u4e86\u7ebf\u7a0b\u4e4b\u95f4\u51fd\u6570\u8c03\u7528\u7684\u7ed3\u679c\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9884\u6d4b\u6027\u3002<\/p>\n

\u540c\u6b65\u5916\u90e8\u53ef\u53d8\u72b6\u6001<\/strong><\/p>\n

\u5982\u679c\u51fd\u6570\u5f0f\u4ee3\u7801\u6d89\u53ca\u8bbf\u95ee\u53ef\u53d8\u7684\u5916\u90e8\u72b6\u6001\uff08\u4f8b\u5982\u5171\u4eab\u53d8\u91cf\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u540c\u6b65\u673a\u5236\uff08\u4f8b\u5982\u9501\u6216\u539f\u5b50\u53d8\u91cf\uff09\u6765\u786e\u4fdd\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u8be5\u72b6\u6001\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b\uff1a\u4f7f\u7528\u5e76\u884c\u6d41<\/strong><\/p>\n

\u8003\u8651\u4ee5\u4e0b\u5e76\u884c\u6d41\u7684\u4f8b\u5b50\uff0c\u5b83\u4f7f\u7528\u4e0d\u53ef\u53d8\u6d41\u548c\u7eaf\u51fd\u6570\u5bf9\u5217\u8868\u4e2d\u7684\u6574\u6570\u8fdb\u884c\u5e73\u65b9\u548c\u6c42\u548c\uff1a<\/p>\n

import java.util.Arrays;\nimport java.util.List;\nimport java.util.stream.IntStream;\n\npublic class ThreadSafeFunctionalProgramming {\n\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u53d8\u7684\u6574\u6570\u5217\u8868\n        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);\n\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u5e76\u884c\u6d41\u5e76\u6c42\u548c\n        int sum = numbers.stream()\n                .map(n -> n * n) \/\/ \u4f7f\u7528\u7eaf\u51fd\u6570\u5c06\u6bcf\u4e2a\u5143\u7d20\u5e73\u65b9\n                .sum(); \/\/ \u4f7f\u7528\u7eaf\u51fd\u6570\u5bf9\u5143\u7d20\u8fdb\u884c\u6c42\u548c\n\n        System.out.println(\"The sum is: \" + sum);\n    }\n}<\/pre>\n
\u8be5\u4ee3\u7801\u5229\u7528 Java 8 \u7684\u5e76\u884c\u6d41\uff0c\u4f46\u7531\u4e8e\u4f7f\u7528\u7684\u6570\u636e\u7ed3\u6784\u548c\u51fd\u6570\u90fd\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u4fdd\u8bc1\u4e86\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5728 Java \u4e2d\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u65f6\u5982\u4f55\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u6027\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u51fd\u6570\u5f0f\u7f16\u7a0b,\u7ebf\u7a0b\u5b89\u5168\u6027\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728 Java \u4e2d\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u65f6...<\/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-202602","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202602","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=202602"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202602\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}