Question

我是编程的新手，我正在制作一个猜谜游戏，程序随机生成一个介于1到10之间的数字，然后要求用户猜出该数字是什么，用户应该能够继续猜测，直到他猜对了，系统问他们是否想再玩一次，在我的代码中，我打印了系统随机生成的数字，以便在测试时更快地完成游戏。当我尝试执行程序并输入系统已生成的数字时，它们是正确的并且询问是否要再次播放的消息不会出现。

任何帮助将不胜感激！提前谢谢你，

（另外，这个问题有什么问题只是告诉我，这是我第一次在这里询问）

这是我的代码，

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

public class GuessingGame1 {
    public static int randomizer() {
        Random rand = new Random();
        int num = rand.nextInt(10)+1;
        System.out.println(num);
        int count = 0;
        return num;
    }
    public static int userInput() {
        System.out.println("I've thought of a number between 1 and 10");
        System.out.println("Enter your guess...");
        Scanner scan = new Scanner(System.in);
        int guess = scan.nextInt();
        return guess;
    }
    public static String compare() {
        int count = 0;
        String result = null;
        if (userInput() == randomizer()) {
             System.out.println("You guessed it - I was thinking of " + randomizer());
             count++;
             result = "It took you " + count + " guesses.";
             return result;
        }

        else if (userInput() > randomizer())  {
             result = "Lower!";
             count++;
             return result;
        }

        else if (userInput() < randomizer()) {
             result = "Higher";
             count++;
        }
        return result;

    }
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        Scanner scanLine = new Scanner(System.in);

        String playAgain = "";

        do  {
            randomizer();

            do {
                userInput();
                compare

            } while (userInput() != randomizer());
            System.out.println("Play again? Yes/No");
            playAgain = scanLine.nextLine();


        } while (playAgain.equalsIgnoreCase("yes") || playAgain.equalsIgnoreCase("y"));
    }
}

Answer 1

问题是你给Randomizer打了两次电话！

调用randomizer一次作为参数进行比较，并从匹配中返回boolean返回布尔值。

Answer 2

你必须改变你的方法

   public static String compare(int a,int b) {
        int count = 0;
        String result = null;
        if (a == b) {
             System.out.println("You guessed it - I was thinking of " + b);
             count++;
             result = "It took you " + count + " guesses.";
             return result;
        }

        else if (a > b)  {
             result = "Lower!";
             count++;
             return result;
        }

        else if (a < b) {
             result = "Higher";
             count++;
        }
        return result;

    }
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        Scanner scanLine = new Scanner(System.in);

        String playAgain = "";
        int a;
        int b;
        do  {
            do {
               a=userInput();
               b= randomizer();
               System.out.println(compare(a,b));
            } while (a != b);
            System.out.println("Play again? Yes/No");
            playAgain = scanLine.nextLine();


        } while (playAgain.equalsIgnoreCase("yes") || playAgain.equalsIgnoreCase("y"));
    }
}

Answer 3

你已经将（）保留在比较中，并且当调用compare函数时，计数将始终为零。

为什么我的程序循环正确？

3 个答案: