{"id":202790,"date":"2025-05-22T11:46:50","date_gmt":"2025-05-22T03:46:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202790\/"},"modified":"2025-05-22T11:46:50","modified_gmt":"2025-05-22T03:46:50","slug":"%e5%9c%a8-java-%e4%b8%ad%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%bb%a3%e7%a0%81%e5%92%8c%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%bc%96%e7%a8%8b%e4%bb%a3%e7%a0%81%e7%9a%84%e5%b7%ae%e5%bc%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202790\/","title":{"rendered":"\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u7684\u5dee\u5f02\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

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

\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u7684\u5dee\u5f02\u6709\u54ea\u4e9b\uff1f<\/h1>\n

\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300a\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u7684\u5dee\u5f02\u6709\u54ea\u4e9b\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

<\/p>\n

Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u5dee\u5f02\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u4f7f\u7528\u7eaf\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u800c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u4f7f\u7528\u5bf9\u8c61\u548c\u7c7b\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u907f\u514d\u4f7f\u7528\u5bf9\u8c61\uff0c\u800c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u56f4\u7ed5\u5bf9\u8c61\u7ec4\u7ec7\u7a0b\u5e8f\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u65b9\u6cd5\u4f5c\u4e3a\u4e00\u7b49\u516c\u6c11\u4f20\u9012\uff0c\u800c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\u65b9\u6cd5\u4f5c\u4e3a\u7c7b\u7684\u65b9\u6cd5\u5b9e\u73b0\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u7a0b\u5e8f\u6ca1\u6709\u5185\u90e8\u72b6\u6001\uff0c\u800c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7\u5bf9\u8c61\u5b58\u50a8\u548c\u4fee\u6539\u72b6\u6001\u3002<\/p>\n

<\/p>\n

Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u7684\u5dee\u5f02<\/strong><\/p>\n

\u7b80\u4ecb<\/strong>
\u51fd\u6570\u5f0f\u7f16\u7a0b(FP)\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u7f16\u7a0b\u8303\u5f0f\u3002FP \u4fa7\u91cd\u4e8e\u4f7f\u7528\u7eaf\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u800c OOP \u4fa7\u91cd\u4e8e\u5bf9\u8c61\u548c\u7c7b\u3002\u672c\u6587\u5c06\u63a2\u8ba8 Java \u4e2d FP \u4ee3\u7801\u548c OOP \u4ee3\u7801\u4e4b\u95f4\u7684\u4e3b\u8981\u5dee\u5f02\uff0c\u5e76\u63d0\u4f9b\u4e00\u4e2a\u5b9e\u6218\u6848\u4f8b\u6765\u6f14\u793a\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u3002<\/p>\n

\u5dee\u5f02<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
\u5c5e\u6027<\/strong><\/th>\n\u51fd\u6570\u5f0f\u7f16\u7a0b<\/strong><\/th>\n\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b<\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u51fd\u6570<\/strong><\/td>\n\u7eaf\u51fd\u6570\uff0c\u65e0\u526f\u4f5c\u7528\u3002<\/td>\n\u53ef\u4ee5\u6709\u526f\u4f5c\u7528\uff0c\u4f8b\u5982\u4fee\u6539\u5bf9\u8c61\u6216\u5c5e\u6027\u3002<\/td>\n<\/tr>\n
\u6570\u636e<\/strong><\/td>\n\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u4f8b\u5982\u96c6\u5408\u3002<\/td>\n\u53ef\u53d8\u6570\u636e\uff0c\u4f8b\u5982\u7c7b\u7684\u5b9e\u4f8b\u3002<\/td>\n<\/tr>\n
\u5bf9\u8c61<\/strong><\/td>\n\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u5bf9\u8c61\u3002<\/td>\n\u7a0b\u5e8f\u56f4\u7ed5\u5bf9\u8c61\u7ec4\u7ec7\u3002<\/td>\n<\/tr>\n
\u65b9\u6cd5<\/strong><\/td>\n\u4f5c\u4e3a\u4e00\u7b49\u516c\u6c11\u4f20\u9012\u3002<\/td>\n\u4f5c\u4e3a\u7c7b\u7684\u65b9\u6cd5\u5b9e\u73b0\u3002<\/td>\n<\/tr>\n
\u72b6\u6001<\/strong><\/td>\n\u7a0b\u5e8f\u6ca1\u6709\u5185\u90e8\u72b6\u6001\u3002<\/td>\n\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7\u5bf9\u8c61\u5b58\u50a8\u548c\u4fee\u6539\u72b6\u6001\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

\u8003\u8651\u4ee5\u4e0b\u5c06\u5217\u8868\u4e2d\u6240\u6709\u6570\u5b57\u7ffb\u500d\u7684\u793a\u4f8b\uff1a<\/p>\n

FP \u4ee3\u7801\uff1a<\/strong><\/p>\n

import java.util.List;\nimport java.util.stream.Collectors;\n\nclass Main {\n    public static void main(String[] args) {\n        List<Integer> numbers = List.of(1, 2, 3, 4, 5);\n\n        List<Integer> doubledNumbers = numbers.stream()\n            .map(number -> number * 2)\n            .collect(Collectors.toList());\n\n        System.out.println(doubledNumbers);\n    }\n}<\/pre>\n
OOP \u4ee3\u7801\uff1a<\/strong><\/p>\n
class NumberDoubler {\n    private List<Integer> numbers;\n\n    public NumberDoubler(List<Integer> numbers) {\n        this.numbers = numbers;\n    }\n\n    public List<Integer> doubleNumbers() {\n        for (int i = 0; i < this.numbers.size(); i++) {\n            this.numbers.set(i, this.numbers.get(i) * 2);\n        }\n        return this.numbers;\n    }\n}\n\nclass Main {\n    public static void main(String[] args) {\n        List<Integer> numbers = List.of(1, 2, 3, 4, 5);\n\n        NumberDoubler doubler = new NumberDoubler(numbers);\n        List<Integer> doubledNumbers = doubler.doubleNumbers();\n\n        System.out.println(doubledNumbers);\n    }\n}<\/pre>\n
\u5206\u6790<\/strong><\/p>\n
    \n
  • FP \u4ee3\u7801\u4fdd\u6301\u5217\u8868\u4e0d\u53ef\u53d8\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u6765\u5b58\u50a8\u53cc\u500d\u7684\u6570\u5b57\u3002\u5b83\u907f\u514d\u4e86\u5bf9\u539f\u59cb\u5217\u8868\u8fdb\u884c\u4fee\u6539\uff0c\u5e76\u4f7f\u7528\u6d41 (Stream) \u5b9e\u73b0\u4e86\u51fd\u6570\u5f0f\u64cd\u4f5c\u3002<\/li>\n
  • OOP \u4ee3\u7801\u901a\u8fc7\u4e00\u4e2a\u5bf9\u8c61\u6765\u5b58\u50a8\u548c\u4fee\u6539\u5217\u8868\u3002\u5b83\u5728\u5185\u90e8\u4fee\u6539\u5217\u8868\uff0c\u53ef\u80fd\u4f1a\u4ea7\u751f\u526f\u4f5c\u7528\u3002<\/li>\n<\/ul>\n
    \u7ed3\u8bba<\/strong><\/p>\n
    FP \u4ee3\u7801\u4e0e OOP \u4ee3\u7801\u5728 Java \u4e2d\u5177\u6709\u4e0d\u540c\u7684\u4f18\u7f3a\u70b9\u3002FP \u4ee3\u7801\u53ef\u4ee5\u63d0\u4f9b\u4e0d\u53d8\u6027\u3001\u51fd\u6570\u7ec4\u5408\u548c\u65e0\u9700\u72b6\u6001\u7684\u4f18\u70b9\uff0c\u800c OOP \u4ee3\u7801\u5728\u6a21\u62df\u771f\u5b9e\u4e16\u754c\u573a\u666f\u65f6\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u7ed3\u6784\u548c\u5c01\u88c5\u3002\u6839\u636e\u5177\u4f53\u5e94\u7528\u573a\u666f\u9009\u62e9\u9002\u5f53\u7684\u8303\u5f0f\u5bf9\u4e8e\u7f16\u5199\u5065\u58ee\u4e14\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u81f3\u5173\u91cd\u8981\u3002<\/p>\n
    \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4ee3\u7801\u7684\u5dee\u5f02\u6709\u54ea\u4e9b\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,\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u4ee3\u7801\u548c...<\/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-202790","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202790","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=202790"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202790\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}