java输入数字猜测

在Java中，你可以通过控制台输入让用户猜数字，通常用于练习基本的用户交互。下面是一个简单的示例，目标数字隐藏起来，用户输入他们的猜测，然后程序判断并给出提示：

import java.util.Scanner;

public class GuessNumberGame {
    private int secretNumber;
    private int attempts;

    public GuessNumberGame(int secret) {
        this.secretNumber = secret;
        this.attempts = 0;
    }

    public void startGame() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("欢迎来到猜数字游戏，我在心里想了一个1到100之间的数。");
        
        while (true) {
            System.out.print("请输入你的猜测：");
            int guess = scanner.nextInt();

            attempts++;
            if (guess < secretNumber) {
                System.out.println("太小了，再试一次！");
            } else if (guess > secretNumber) {
                System.out.println("太大了，再试试！");
            } else {
                System.out.printf("恭喜你，猜对了！尝试次数：%d\n", attempts);
                break;
            }
        }
        scanner.close();
    }

    public static void main(String[] args) {
        GuessNumberGame game = new GuessNumberGame(50);
        game.startGame();
    }
}