1 package text1;
2
3 import java.util.Scanner;
4
5 public class text11 {
6 public static void main(String[] args){
7
8 Scanner sc =new Scanner(System.in);
9
10
11 System.out.print("输入圆的半径");
12 int a =sc.nextInt();
13
14
15 System.out.print("圆的周长是;"+a*2*3.14+"圆的面积是;"+a*a*3.14);
16
17 }
18 }
转载于:https://www.cnblogs.com/wangguoning/p/5864272.html