第5次作业--对象的创建与使用

package Test;

public class test5 {
    int count;
    public static void main(String[] args) {
        // TODO Auto-generated method stub    
        //建立矩形的类的对象
        Rectangle rect = new Rectangle(2,3);
        rect.getArea();
        rect.getPeri();
    }
}
class  Rectangle{
    //矩形的宽
    private double width = 0.0;
    //矩形的高
    private double height = 0.0;
    //矩形的面积
    private double area = 0.0;
    //矩形的周长
    private double peri = 0.0;
    Rectangle(double width,double height){
        this.width = width;
        this.height = height;
    }
    //计算矩形的面积
    public void getArea() {
        area = width*height;
        System.out.println("矩形的面积是："+area);
    }
    //计算矩形的周长
    public void getPeri() {
        peri = (height+width)*2;
        System.out.println("矩形的周长是："+peri);
    }
}