Java猜谜游戏无限循环

Question

我的代码有问题，程序无法再次播放，但是也不会结束。

在获胜或猜测过多后，代码继续在内部 while 循环中循环。

这是我的代码:

/**
 * This program will prompt the user to guess a secret number
 * This number will is between 1 and N, where N is a postive number
 *
 * @author: Perry Chapman
*/

import java.util.Scanner;

public class SecretNumber2
{
    public static void main( String [] args )
    {
        int N;
        int randomNumber;    
        int guess;
        int tries, maxTries;

        boolean win = false;
        boolean playing = true;
        int playAgain = 1;
        tries = 0;

        while(playing == true)
        { 
            Scanner input = new Scanner( System.in );

            System.out.println( "This is a guessing game." );
            System.out.println( "What is the max number of tries: ");
            maxTries = input.nextInt();
            System.out.println( "Enter a value between 1 and 1000: " );
            N = input.nextInt();

            randomNumber = (int)(N * Math.random()) + 1;

            while (win == false)
            {
                System.out.println( "Enter your guess: " );                      
                guess = input.nextInt();
                tries++;

                if (guess == randomNumber) 
                {  
                    System.out.println( "Congratulations! The number of guesses it took you was " + tries );
                    win = true;
                    System.out.println("Would you like to play again? \n (1)Yes or (2)No: ");
                    playAgain = input.nextInt();

                    if(playAgain == 1) {
                        playing = true;
                    }

                    else if (playAgain == 2) {
                        playing = false;
                    }
                    tries = 0;
                }

                else if(guess < randomNumber)
                    System.out.println( "Too low, guess again." );

                else if(guess > randomNumber)                        
                    System.out.println( "Too high, guess again." );

                else if(tries == maxTries)
                {
                    System.out.println("You have exceeded the max number of tries. \nYou lose.");
                    System.out.println("\nWould you like to play again?\n (1)Yes or (2)No: ");
                    playAgain = input.nextInt();

                    if(playAgain == 1) {
                      playing = true;
                    }

                    else if(playAgain == 2) {
                      playing = false;
                    }

                    tries = 0;
                }
            }
        }
    }
}

Answer 1

Andrew 是对的，为了循环条件必须为真。if else 语句需要按正确的顺序。这是修复方法，希望对您有所帮助。

public static void main(String[] args) {
    int N;
    int randomNumber;
    int guess;
    int tries, maxTries;

    boolean lose;
    boolean playing = true;
    int playAgain;
    tries = 0;

    while (playing) {
        Scanner input = new Scanner(System.in);

        System.out.println("This is a guessing game.");
        System.out.println("What is the max number of tries: ");
        maxTries = input.nextInt();
        System.out.println("Enter a value between 1 and 1000: ");
        N = input.nextInt();

        randomNumber = (int) (N * Math.random()) + 1;
        lose = true;

        while (lose) {
            System.out.println("Enter your guess: ");
            guess = input.nextInt();
            tries++;

            if (guess == randomNumber) {
                System.out.println("Congratulations! The number of guesses it took you was " + tries);
                lose = false;
                System.out.println("Would you like to play again? \n (1)Yes or (2)No: ");
                playAgain = input.nextInt();

                if (playAgain == 1) {
                    playing = true;
                } else if (playAgain == 2) {
                    playing = false;
                }
                tries = 0;
            } else if (tries == maxTries) {
                System.out.println("You have exceeded the max number of tries. \nYou lose.");
                System.out.println("\nWould you like to play again?\n (1)Yes or (2)No: ");
                playAgain = input.nextInt();

                if (playAgain == 1) {
                    playing = true;
                } else if (playAgain == 2) {
                    playing = false;
                }
                lose = false;
                tries = 0;
            } else if (guess < randomNumber) {
                System.out.println("Too low, guess again.");
            } else if (guess > randomNumber) {
                System.out.println("Too high, guess again.");
            }
        }
    }
}