作业一号

package com.Shapes;

public class Shapes {
    public static void main(String[] args){
        /*Shape shape = new Shape();
        Shape roundness = new Roundness();
        Shape square = new Square();
        Shape rhombus = new Rhombus();
        shape.type();
        shape.draw();
        roundness.type();
        roundness.draw();
        square.type();
        square.draw();
        rhombus.type();
        rhombus.draw();*/
        Shape[] A = new Shape[4];
        A[0] = new Shape();
        A[1] = new Roundness();
        A[2] = new Square();
        A[3] = new Rhombus();
        for(Shape s : A){
            s.type();
            s.draw();
        }
    }
}

class Shape{
    public void type(){
        System.out.print("超类爸爸:");
    }
    public void draw(){
        System.out.println("我是楼下所有人的爸爸");
    }
}
class Roundness extends Shape{
    public void type(){
        System.out.print("圆形:");
    }
    public void draw(){
        System.out.println("我似鸽圆，莫得感情，也莫得钱");
    }
}
class Square extends Shape{
    public void type(){
        System.out.print("方形:");
    }
    public void draw(){
        System.out.println("讲真的我现在有点方");
    }
}
class Rhombus extends Shape{
    public void type(){
        System.out.print("菱形:");
    }
    public void draw() {
        System.out.println("菱形(冷漠)");
    }
}