编辑代码

import java.util.Scanner;
class Main {
	public static void main(String[] args) {
       int hm;
       Scanner sc=new Scanner(System.in);
       System.out.println("请输入数字");
       hm=sc.nextInt();
       switch(hm){
           case 1:
           System.out.println("爸爸的号码");
           break;
           case 2:
           System.out.println("妈妈的号码");
           break;
           case 3:
           System.out.println("爷爷的号码");
           break;
           case 4:
           System.out.println("奶奶的号码");
           break;
       }

	}
}