java猜数游戏

package hello;

import java.util.Scanner;

public class hello {

    private static Scanner in;

    public static void main(String[] args) {

        in = new Scanner(System.in);
        int rad_num, guess, count = 0;
        rad_num =  (int)(1+Math.random()*(100));
        guess = in.nextInt();
        count++;
        while(guess != rad_num)
        {
                if(guess < rad_num)
                {
                    System.out.println("这个数小了");
                }
                else
                {
                    System.out.println("这个数大了");

                }
                count++;
                guess = in.nextInt();
        }
        System.out.println("恭喜你猜对了,用了"+ count+"次");
    }
}