{"id":202605,"date":"2025-05-22T10:10:12","date_gmt":"2025-05-22T02:10:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202605\/"},"modified":"2025-05-22T10:10:12","modified_gmt":"2025-05-22T02:10:12","slug":"%e9%87%8d%e7%94%a8-java-%e5%87%bd%e6%95%b0%e7%9a%84%e6%8a%80%e5%b7%a7%e5%92%8c%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202605\/","title":{"rendered":"\u91cd\u7528 Java \u51fd\u6570\u7684\u6280\u5de7\u548c\u65b9\u6cd5"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u91cd\u7528 Java \u51fd\u6570\u7684\u6280\u5de7\u548c\u65b9\u6cd5<\/h1>\n<p>\u4f60\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u91cd\u7528 Java \u51fd\u6570\u7684\u6280\u5de7\u548c\u65b9\u6cd5\u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/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<p>Java \u51fd\u6570\u91cd\u7528\u6280\u5de7\u5305\u62ec\uff1a1\u3001\u4f7f\u7528\u9759\u6001\u65b9\u6cd5\u8c03\u7528\u72ec\u7acb\u4e8e\u5b9e\u4f8b\u7684\u65b9\u6cd5\u30022\u3001\u4f7f\u7528\u5b9e\u4f8b\u65b9\u6cd5\u5c06\u51fd\u6570\u5173\u8054\u5230\u7279\u5b9a\u5bf9\u8c61\u7684\u5b9e\u4f8b\u30023\u3001\u901a\u8fc7\u533f\u540d\u5185\u90e8\u7c7b\u5728\u4e0d\u521b\u5efa\u547d\u540d\u7c7b\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u63a5\u53e3\u6216\u6269\u5c55\u7c7b\u30024\u3001\u4f7f\u7528\u51fd\u6570\u5f0f\u63a5\u53e3\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u65b9\u6cd5\u5f15\u7528\u4f20\u9012\u51fd\u6570\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729923023671c87cfcc4ed.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u91cd\u7528 Java \u51fd\u6570\u7684\u6280\u5de7\u548c\u65b9\u6cd5<\/strong><\/p>\n<p><strong>\u5f15\u8a00<\/strong><\/p>\n<p>\u5728 Java \u5f00\u53d1\u4e2d\uff0c\u51fd\u6570\u91cd\u7528\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u590d\u7528\u6027\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u91cd\u7528 Java \u51fd\u6570\u7684\u5404\u79cd\u6280\u5de7\u548c\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5b9e\u6218\u6848\u4f8b\u6765\u5c55\u793a\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5e94\u7528\u3002<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u9759\u6001\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li>\u5c06\u516c\u5171\u51fd\u6570\u6807\u8bb0\u4e3a\u9759\u6001\uff0c\u4ee5\u5141\u8bb8\u5728\u4e0d\u5b9e\u4f8b\u5316\u7c7b\u7684\u60c5\u51b5\u4e0b\u8c03\u7528\u5b83\u4eec\u3002<\/li>\n<li>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>public class MathUtils {\n\n  public static double add(int a, int b) {\n      return a + b;\n  }\n\n}\n\npublic class Main {\n\n  public static void main(String[] args) {\n      double sum = MathUtils.add(10, 20);\n      System.out.println(\"Sum: \" + sum);\n  }\n}<\/pre>\n<\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5 2\uff1a\u5b9e\u4f8b\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528\u5b9e\u4f8b\u65b9\u6cd5\u5c06\u51fd\u6570\u4e0e\u7279\u5b9a\u7c7b\u7684\u5b9e\u4f8b\u5173\u8054\u8d77\u6765\u3002<\/li>\n<li>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>public class Person {\n\n  private String name;\n\n  public Person(String name) {\n      this.name = name;\n  }\n\n  public String getName() {\n      return name;\n  }\n}\n\npublic class Main {\n\n  public static void main(String[] args) {\n      Person person = new Person(\"John\");\n      String name = person.getName();\n      System.out.println(\"Name: \" + name);\n  }\n}<\/pre>\n<\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5 3\uff1a\u533f\u540d\u5185\u90e8\u7c7b<\/strong><\/p>\n<ul>\n<li>\u533f\u540d\u5185\u90e8\u7c7b\u5141\u8bb8\u5728\u4e0d\u521b\u5efa\u547d\u540d\u7c7b\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u4e00\u4e2a\u63a5\u53e3\u6216\u6269\u5c55\u4e00\u4e2a\u7c7b\u3002<\/li>\n<li>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>public class Main {\n\n  public static void main(String[] args) {\n      Runnable runnable = new Runnable() {\n\n          @Override\n          public void run() {\n              System.out.println(\"Hello from anonymous class!\");\n          }\n      };\n\n      Thread thread = new Thread(runnable);\n      thread.start();\n  }\n}<\/pre>\n<\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5 4\uff1a\u51fd\u6570\u5f0f\u63a5\u53e3<\/strong><\/p>\n<ul>\n<li>\u51fd\u6570\u5f0f\u63a5\u53e3\u5177\u6709\u5355\u4e2a\u62bd\u8c61\u65b9\u6cd5\uff0c\u5141\u8bb8\u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u6216\u65b9\u6cd5\u5f15\u7528\u5c06\u51fd\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u4ee3\u7801\u3002<\/li>\n<li>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>@FunctionalInterface\ninterface MathOperation {\n  int operate(int a, int b);\n}\n\npublic class Main {\n\n  public static void main(String[] args) {\n      MathOperation sum = (a, b) -&gt; a + b;\n      int result = sum.operate(10, 20);\n      System.out.println(\"Sum: \" + result);\n  }\n}<\/pre>\n<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u6848\u4f8b 1\uff1a\u91cd\u7528\u6570\u5b66\u51fd\u6570<\/strong><\/p>\n<ul>\n<li>\u5efa\u7acb\u4e00\u4e2a\u5305\u542b\u5404\u79cd\u6570\u5b66\u64cd\u4f5c\u7684 MathUtils \u7c7b\uff0c\u5e76\u4f7f\u7528\u9759\u6001\u65b9\u6cd5\u5b9e\u73b0\u8fd9\u4e9b\u64cd\u4f5c\u3002<\/li>\n<li>\u7136\u540e\u5728\u5176\u4ed6\u7c7b\u4e2d\u5bfc\u5165 MathUtils \u7c7b\u5e76\u4f7f\u7528\u5176\u51fd\u6570\uff0c\u800c\u65e0\u9700\u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n<p><strong>\u6848\u4f8b 2\uff1a\u91cd\u7528\u6570\u636e\u9a8c\u8bc1\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u636e\u9a8c\u8bc1\u65b9\u6cd5\u7684 ValidationUtils \u7c7b\uff0c\u5e76\u4f7f\u7528\u5b9e\u4f8b\u65b9\u6cd5\u4e0e\u591a\u4e2a\u5b9e\u4f53\u8fdb\u884c\u4ea4\u4e92\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u3001\u8868\u5355\u63d0\u4ea4\u6216\u6570\u636e\u5e93\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u901a\u8fc7\u5229\u7528\u9759\u6001\u65b9\u6cd5\u3001\u5b9e\u4f8b\u65b9\u6cd5\u3001\u533f\u540d\u5185\u90e8\u7c7b\u548c\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u7a0b\u5e8f\u5458\u53ef\u4ee5\u6709\u6548\u5730\u91cd\u7528 Java \u51fd\u6570\u3002\u8fd9\u53ef\u4ee5\u8282\u7701\u65f6\u95f4\u548c\u7cbe\u529b\uff0c\u540c\u65f6\u63d0\u9ad8\u4ee3\u7801\u8d28\u91cf\u3002\u901a\u8fc7\u4e86\u89e3\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u521b\u5efa\u66f4\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\u548c\u53ef\u590d\u7528\u7684 Java \u7a0b\u5e8f\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8ejava,\u91cd\u7528\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u91cd\u7528 Java \u51fd\u6570\u7684\u6280\u5de7\u548c\u65b9\u6cd5\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u91cd\u7528 Java 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