java实现猜数字小游戏（1-100）

import java.util.Scanner;

public class GuessNumber {
     public static void main(String[] args){ 
           Scanner sc = new Scanner(System.in);
           System.out.println("现在开始游戏？(Y/N)");
           String choice = sc.nextLine();
           while((!choice.equals("Y"))&&(!choice.equals("N"))){
                  System.out.println("输入有误请重新输入：");
                  choice = sc.nextLine();
           }
           if(choice.equals("N")){
                  System.out.println("已退出");
                  System.exit(0);
           }
           int number;
           int times = 1;
           while(true){
                  int target = (int) (Math.random()*100+1);
                  System.out.println("游戏已开始，请输入猜想的数字(1-100): ");
	              number = sc.nextInt();
	              while(true){
		              if(number>target){
			               System.out.println("猜大了！");
			               number = sc.nextInt();
			               times = times + 1