匿名内部类

 1 public class AnmInnerClass {
 2 
 3     /**
 4      * @param args
 5      * 匿名类，也叫匿名内部类，是对原类的集成并且直接实例化的对象
 6      */
 7     public static void main(String[] args) {
 8         // TODO Auto-generated method stub
 9         Foo foo=new Foo(){
10             public int getA(){
11                 System.out.println("调用了getA()");
12                 return super.getA();
13             }
14         };
15         System.out.println(foo.getA());
16         
17         
18     }
19 }    
20     class Foo{
21         int a;
22         public int getA(){
23             return a;
24         }
25     }