shapetest.java

Java程序设计大学教程程序源代码

package jbookch4;

/**
 * <p>几何形状的继承 </p>
 * <p>演示继承关系</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: 博艺工作室</p>
 * @author 刘艺
 * @version 1.0
 */
public class ShapeTest {
    public static void main(String[] args) {
        Retangle retangle = new Retangle(10.0, 20.0);
        Square square = new Square(10.0);
        System.out.println(retangle + "周长：" + retangle.calcPerimeter());
        System.out.println(retangle + "面积：" + retangle.calcArea());
        System.out.println(square + "周长：" + square.calcPerimeter());
        System.out.println(square + "面积：" + square.calcArea());

    }

}