Java实现简单猜数字小游戏

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

public class guessNum { 
 public static int getRanNum(){  //获得一个随机数
  Random random = new Random();
  return random.nextInt(100);
 }

 public static boolean guess(Scanner scanner,int toGuess){
  System.out.println("请输入要猜的数（1-100）：");
  int num = scanner.nextInt();
  if ( num < toGuess){
   System.out.println("小了...");
   return false;
  } else if ( num > toGuess){
   System.out.println("大了...");
   return false;
  } else {
   System.out.println("恭喜你，猜对了！！");
   return true;
  }
 }

 public static void startGame(Scanner scanner){
  int toGuess = getRanNum();
  while( true ){
   if (guess(scanner,toGuess)){
    break;
   }
  }
 }

 public static void main(String[] args) {
  Scanner scanner = new Scanner(System.in);
  startGame(scanner);
 }
}