Java涓殑abstract鍏抽敭瀛楃敤浜庡０鏄庢娊璞＄被鍜屾娊璞℃柟娉曘€?/p>

1. 鎶借薄绫伙細浣跨敤abstract鍏抽敭瀛椾慨楗扮殑绫荤О涓烘娊璞＄被锛屽畠涓嶈兘鐩存帴瀹炰緥鍖栵紝鍙兘浣滀负鐖剁被琚户鎵裤€傛娊璞＄被鍙互鍖呭惈鎶借薄鏂规硶鍜岄潪鎶借薄鏂规硶銆?/p>

   abstract class Animal {
       String name;
   
       abstract void sound(); // 鎶借薄鏂规硶
   
       void sleep() {
           System.out.println("Animal is sleeping");
       }
   }
   

2. 鎶借薄鏂规硶锛氫娇鐢╝bstract鍏抽敭瀛椾慨楗扮殑鏂规硶绉颁负鎶借薄鏂规硶锛屽畠娌℃湁鏂规硶浣擄紝鍙湁鏂规硶鐨勫０鏄庯紝鍏蜂綋鐨勫疄鐜扮敱瀛愮被瀹炵幇銆?/p>

   abstract void sound();
   

   瀛愮被蹇呴』瀹炵幇鎶借薄绫讳腑鐨勬娊璞℃柟娉曪紝鍚﹀垯瀛愮被涔熼渶瑕佸０鏄庝负鎶借薄绫汇€?/p>

   class Dog extends Animal {
       void sound() {
           System.out.println("Dog is barking");
       }
   }
   

   娉ㄦ剰锛氭娊璞℃柟娉曚笉鑳借澹版槑涓簆rivate銆乻tatic鎴杅inal锛屽畠蹇呴』琚瓙绫诲疄鐜帮紝骞朵笖涓嶈兘琚疄渚嬪寲銆?/p>

3. 浣跨敤鎶借薄绫伙細

   • 鎶借薄绫讳笉鑳界洿鎺ュ疄渚嬪寲锛屽彧鑳介€氳繃鍏跺瓙绫昏繘琛屽疄渚嬪寲銆?/li>

   Animal animal = new Dog();
   animal.sound(); // 杈撳嚭锛?quot;Dog is barking"
   animal.sleep(); // 杈撳嚭锛?quot;Animal is sleeping"
   

   • 鎶借薄绫诲彲浠ヤ綔涓烘柟娉曠殑鍙傛暟绫诲瀷鍜岃繑鍥炲€肩被鍨嬨€?/li>

   void doSomething(Animal animal) {
       // ...
   }
   
   Animal getAnimal() {
       // ...
   }
   

   • 鎶借薄绫诲彲浠ヨ缁ф壙鍜屾墿灞曘€?/li>

   class Cat extends Animal {
       void sound() {
           System.out.println("Cat is meowing");
       }
   }