java初学4

public class InnerDemo {
    public static void main(String[] args) {
        //Outer.Inner in = new Outer().new Inner();
        Outer.Inner in;
        Outer out = new Outer();
        in = out.new Inner();
        //in.inShow();
        //Outer out = new Outer();
        //out.outShow();
    }
}

class Outer {
    class Inner {
        public void inShow() {
            System.out.println("inShow");
        }
    }
    public void outShow(){
        //System.out.println("outShow");
        Inner in = new Inner();
        in.inShow();
    }
}