java猜数小程序

import java.util.Random;
import java.util.Scanner;

public class Number {
 public static void main(String[] args) {
  System.out.println("********猜数游戏********");
  Random r = new Random();
  Scanner sc = new Scanner(System.in);
  //电脑随机产生数字
  int computer = r.nextInt(10)+1;
  while(true){
   System.out.println("请输入你数字");
   String person1 = sc.next();
   boolean flag = validate(person1);
   if(flag){
    int person = Integer.parseInt(person1);
    if(computer==person){
     System.out.println("恭喜你答对了^_^");
     break;
    }else if(computer>person){
     System.out.println("小了");
    }else{
     System.out.println("大了");
    }
   }else{
    System.out.println("请注意输入格式");
   }
  }
 }
 //正则校验的方法
 public static boolean validate(String name){
  String reg = "^\\d|\\d+$";
  if(name.matches(reg)){
   return true;
  }
  return false;
 }
}