java

　　匿名内部类

package com.javatest.mama;

public class Mama {
    int x = 5;
    public static void main(String[] args){
        Mama t = new Mama();
        t.say();
        /* Baby m = new Baby(); */ //错误：No enclosing instance of type Mama is accessible
                                   //main()是静态类，而内部类是动态类
        
        
    }
    void say(){
        System.out.println("say()");
        Baby x = new Baby();
        x.show();
    }
    
    class Baby{
        void show(){
            System.out.println("show("+x+")");
        }
    }
}