{"id":202837,"date":"2025-05-22T08:18:26","date_gmt":"2025-05-22T00:18:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202837\/"},"modified":"2025-05-22T08:18:26","modified_gmt":"2025-05-22T00:18:26","slug":"java%e5%87%bd%e6%95%b0%e5%9c%a8%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f%e4%b8%ad%e7%9a%84%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202837\/","title":{"rendered":"Java\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528<\/h1>\n<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\uff0c\u5b9e\u73b0\u4e86\u6a21\u5f0f\u7684\u6838\u5fc3\u529f\u80fd\u5e76\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u3001\u53ef\u590d\u7528\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u3002\u5728 Java \u4e2d\uff0c\u51fd\u6570\u7528\u4e8e\u5b9e\u73b0\u4ee5\u4e0b\u8bbe\u8ba1\u6a21\u5f0f\uff1a\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff1a\u5b9a\u4e49\u4e00\u4e2a\u63a5\u53e3\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\uff0c\u4f46\u5177\u4f53\u521b\u5efa\u7531\u6d3e\u751f\u7c7b\u51b3\u5b9a\u3002\u7b56\u7565\u6a21\u5f0f\uff1a\u5b9a\u4e49\u4e00\u7ec4\u7b97\u6cd5\uff0c\u5c06\u7b97\u6cd5\u5b9e\u73b0\u4e0e\u4f7f\u7528\u5b83\u4eec\u7684\u4ee3\u7801\u5206\u79bb\u3002\u89c2\u5bdf\u8005\u6a21\u5f0f\uff1a\u5141\u8bb8\u5bf9\u8c61\u8ba2\u9605\u4e8b\u4ef6\uff0c\u5e76\u5728\u4e8b\u4ef6\u53d1\u751f\u65f6\u6536\u5230\u901a\u77e5\u3002\u4f8b\u5982\uff0c\u5728\u7535\u5546\u7f51\u7ad9\u4e2d\uff0c\u51fd\u6570\u53ef\u7528\u4e8e\u5b9e\u73b0\u8d2d\u7269\u7bee\u4e2d\u7684\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u3001\u8fd0\u8d39\u7b56\u7565\u6a21\u5f0f\u548c\u901a\u77e5\u7528\u6237\u66f4\u65b0\u7684\u89c2\u5bdf\u8005\u6a21\u5f0f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729948909671ceced3bb46.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528<\/strong><\/p>\n<p>\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u5b83\u4eec\u5b9e\u73b0\u4e86\u8bbe\u8ba1\u6a21\u5f0f\u7684\u6838\u5fc3\u529f\u80fd\uff0c\u5e76\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\u3001\u53ef\u590d\u7528\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u3002\u8ba9\u6211\u4eec\u63a2\u7d22 Java \u4e2d\u51fd\u6570\u5728\u4e0d\u540c\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528\u3002<\/p>\n<p><strong>\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f<\/strong><\/p>\n<p>\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u5b9a\u4e49\u4e86\u4e00\u4e2a\u63a5\u53e3\uff0c\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\uff0c\u4f46\u5177\u4f53\u521b\u5efa\u5bf9\u8c61\u7684\u804c\u8d23\u7531\u6d3e\u751f\u7c7b\u6765\u786e\u5b9a\u3002Java \u4e2d\u7684\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u5de5\u5382\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>interface ShapeFactory {\n    Shape createShape();\n}\n\nclass RectangleFactory implements ShapeFactory {\n    @Override\n    public Shape createShape() {\n        return new Rectangle();\n    }\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>ShapeFactory<\/code> \u63a5\u53e3\u5b9a\u4e49\u4e86\u5fc5\u8981\u7684\u521b\u9020\u65b9\u6cd5\uff0c\u800c <code>RectangleFactory<\/code> \u5b9e\u73b0\u4e86\u8be5\u65b9\u6cd5\u6765\u521b\u5efa <code>Rectangle<\/code> \u7c7b\u7684\u5bf9\u8c61\u3002<\/p>\n<p><strong>\u7b56\u7565\u6a21\u5f0f<\/strong><\/p>\n<p>\u7b56\u7565\u6a21\u5f0f\u5b9a\u4e49\u4e86\u4e00\u7ec4\u7b97\u6cd5\uff0c\u6bcf\u4e2a\u7b97\u6cd5\u90fd\u5b9e\u73b0\u4e00\u4e2a\u7279\u5b9a\u4efb\u52a1\u3002\u8fd9\u79cd\u6a21\u5f0f\u5c06\u7b97\u6cd5\u7684\u5b9e\u73b0\u4e0e\u4f7f\u7528\u5b83\u4eec\u7684\u5ba2\u6237\u7aef\u4ee3\u7801\u5206\u79bb\u3002Java \u4e2d\u7684\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u7b56\u7565\u6a21\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>interface SortAlgorithm {\n    void sort(int[] arr);\n}\n\nclass BubbleSort implements SortAlgorithm {\n    @Override\n    public void sort(int[] arr) {\n        \/\/ implement bubble sort algorithm\n    }\n}<\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c<code>SortAlgorithm<\/code> \u63a5\u53e3\u5b9a\u4e49\u4e86\u6392\u5e8f\u7b97\u6cd5\uff0c\u800c <code>BubbleSort<\/code> \u7c7b\u5b9e\u73b0\u4e86\u7b97\u6cd5\u3002\u5ba2\u6237\u7aef\u4ee3\u7801\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u9002\u5f53\u7684 <code>SortAlgorithm<\/code> \u5bf9\u8c61\u8fdb\u884c\u6392\u5e8f\u6765\u9694\u79bb\u6392\u5e8f\u7b97\u6cd5\u7684\u5b9e\u73b0\u548c\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u89c2\u5bdf\u8005\u6a21\u5f0f<\/strong><\/p>\n<p>\u89c2\u5bdf\u8005\u6a21\u5f0f\u5141\u8bb8\u5bf9\u8c61\u8ba2\u9605\u4e8b\u4ef6\uff0c\u4ee5\u4fbf\u5728\u4e8b\u4ef6\u53d1\u751f\u65f6\u6536\u5230\u901a\u77e5\u3002Java \u4e2d\u7684\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u89c2\u5bdf\u8005\u6a21\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>interface Subject {\n    void addObserver(Observer observer);\n    void removeObserver(Observer observer);\n    void notifyObservers();\n}\n\nclass ConcreteSubject implements Subject {\n    \/\/ implementation details...\n}\n\ninterface Observer {\n    void update();\n}\n\nclass ConcreteObserver implements Observer {\n    \/\/ implementation details...\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>Subject<\/code> \u63a5\u53e3\u5b9a\u4e49\u4e86\u89c2\u5bdf\u8005\u7684\u7ba1\u7406\u65b9\u6cd5\uff0c<code>ConcreteSubject<\/code> \u7c7b\u5b9e\u73b0\u4e86\u8fd9\u4e9b\u65b9\u6cd5\u3002<code>Observer<\/code> \u63a5\u53e3\u5b9a\u4e49\u4e86\u66f4\u65b0\u56de\u8c03\uff0c<code>ConcreteObserver<\/code> \u7c7b\u5b9e\u73b0\u4e86\u5b83\u3002\u901a\u8fc7\u4f7f\u7528\u51fd\u6570\uff0c\u6211\u4eec\u80fd\u591f\u5c06\u89c2\u5bdf\u8005\u4e0e\u4e3b\u9898\u5206\u79bb\uff0c\u5e76\u5b9e\u73b0\u7075\u6d3b\u4e14\u53ef\u6269\u5c55\u7684\u4e8b\u4ef6\u901a\u77e5\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cJava \u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4f8b\u5982\uff0c\u5728\u7535\u5546\u7f51\u7ad9\u7684\u8d2d\u7269\u7bee\u4e2d\uff0c\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u53ef\u4ee5\u7528\u6765\u6839\u636e\u4e0d\u540c\u4ea7\u54c1\u7c7b\u578b\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u7684\u5546\u54c1\u884c\u5bf9\u8c61\u3002\u7b56\u7565\u6a21\u5f0f\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u8fd0\u8d39\u7b97\u6cd5\uff0c\u800c\u89c2\u5bdf\u8005\u6a21\u5f0f\u53ef\u4ee5\u7528\u6765\u901a\u77e5\u7528\u6237\u6709\u5173\u8d2d\u7269\u7bee\u66f4\u65b0\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJava\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u5728\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f5c\u7528 &#46;&#46;&#46;<\/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-202837","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202837","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=202837"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202837\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}