第七周作业

package Wxte;

public class Rectangle {
	 double length;
	    double width;
	    public void getArea() {
	        System.out.println("面积="+length*width);
	    }
	     
	    public void getPer() {
	        System.out.println("周长"+(length+width)*2);
	    }
	     
	    public void showAll() {
	        System.out.println("长="+length);
	        System.out.println("宽="+width);    
	        getArea();
	        getPer();
	    }
}

　　

package Wxte;

import java.util.Scanner;

public class Mask {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		 Rectangle b = new Rectangle();
         Scanner input = new Scanner(System.in);
         System.out.print("输入长:");
         b.length = input.nextInt();
         System.out.print("输入宽:");
         b.width = input.nextInt();
         b.showAll();
    }



	}