博客

import java.util.Scanner;
public class RectangleTest {
    float length;
    float width;
    float getArea() {
        float area;
        area=length*width;
        return area;

    }


    public static void main(String[] args) {
        // TODO Auto-generated method stub
        float perimeter,area;
        Rectangle rectangle = new Rectangle();
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入矩形的长:");
        rectangle.length = sc.nextFloat();
        System.out.println("请输入矩形的宽:");
        rectangle.width = sc.nextFloat();
        area= rectangle.getArea();
        perimeter=2*(rectangle.length+rectangle.width);
        System.out.println("矩形的面积:"+area);
        System.out.println("矩形的周长:"+perimeter);

    }

}