super关键字

package test0302;
class Outer3{
    Outer3(){
        System.out.println("outer2");
    }
    class Inner2{
        Inner2(){
            System.out.println("Inner2");
        }
    }
}
//继承 实例内部类
class Demo01 extends Outer3.Inner2{
    Demo01(Outer3 o){
        o.super();//super调用基类中的某一个构造函数
        System.out.println("Demo");
    }
}
public class TestInner {
    public static void main(String[] args) {
        Demo01 d = new Demo01(new Outer3());
    }
}
//--------------------------------------------------