内部类---匿名类

package 学习;
abstract class pp{
public abstract void free();
}
public class EX{
public static void main(String []args)
{

EX ex=new EX();
ex.f(new pp(){
public void free(){
System.out.println("O(∩_∩)O哈哈~");
}
});
pp p2=new pp(){
public void free(){
System.out.println("(*^__^*) 嘻嘻……");
}
};
p2.free();
}
void f(pp p1)
{
p1.free();
}
}