第七周作业

public  class Rectangle{
    int length;
    int width;
    public void getArea(){
    System.out.println(length * width);
    }
    public void getper(){
    System.out.println((length + width)*2);
    }
    public void showAll(){
    System.out.println(length * width);
    System.out.println("长是" + length);
        System.out.println("宽是" + width);
        System.out.println("面积是");
        getArea();
        System.out.println("周长是");
        getPer();
        }
}


import java.util.Scanner;
public class Demon3.{
    public staitc void main(String[] args){
    Rectangle mhl = new Rectangle();  //连接
    Scanner p=new Scanner(System.in)  //控制台输入
    System.out.print("请输入长");
    mhl.length = input.nextInt();
    System.out.print("请输入宽:");
    mhl.with=input.nextInt();
    mhl.showAll();
    }
}