import java.util.Scanner;
class Rectangle
{
double width=0;
double height=0;
public static void area(double w,double h)
{
double area=0;
area=w*h;
System.out.println("面积为："+area);
}
public static void perimeter(double w,double h)
{
double perimeter=0;
perimeter=2*(w+h);
System.out.println("周长为："+perimeter);
}
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.println("分别输入矩形的宽和高:");
double width=sc.nextDouble();
double height=sc.nextDouble();//转换
System.out.println("该矩形宽："+width+",长："+height);
area(width,height);
perimeter(width,height);
}
}
