第四周作业-键盘输入数据 和 数据类型

package Compute;import java.util.Scanner;public class ComputeArea2 {   public static void main(String args[]){ final double PI=3.14159; double area; double radius=0.0; Scanner sc =new Scanner(System.in); while(sc.hasNextDouble()){ radius=sc.nextDouble(); area=PI*radius*radius; System.out.println("The area forthe circle of 10 is"+area); } sc.close(); area = PI*10*10; System.out.println("The area for the circle of 10 is"+area);  }}