// date:17.4.13

// author: linyang <942510346@qq.com>

package chap9;

public class Rectangle extends GeometricObject {

private double width;

private double height;

public Rectangle() {

}

public Rectangle(double width, double height) {

this.width = width;

this.height = height;

}

public double getWidth() {

return width;

}

public void setWidth(double width) {

this.width = width;

}

public double getHeight() {

return height;

}

public void setHeight(double height) {

this.height = height;

}

public double getArea() {

return width * height;

}

public double getPerimeter() {

return 2 * (width + height);

}

}