Java入门程序---JavaBean

需求:

按照课堂上所讲要求定义一个长方形类,并定义其求周长和面积的方法,然后定义一个测试类进行测试。

 

package com.company;

public class Test {
    public static void main(String[] args) {
        int length;
        int width;
        
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入长方形的长");
        int length = sc.nextInt();
        System.out.println("请输入长方形的宽");
        int width =sc.nextInt();
 
        Rectangle rec=new Rectangle();
        rec.setLength(length);
        rec.setWidth(width);
        
       System.out.println("周长是:"+rec.getPerimeter());
       System.out.println("面积是:"+rec.getArea());
     
    }
}

class Rectangle{
     private int length;
     private int width;
     public Rectangle(){}
  
     public void setLength(int length){
         this.length=length;
     }
     public void setWidth(int width){
         this.width=width;
     }
     public int getPerimeter(){
         return int (length + width)*2;
     }
     public void getArea(){
         return int width*length;
     }

}

  

posted @ 2020-03-26 12:41  Arielsixsixsix  阅读(136)  评论(0编辑  收藏  举报