java - 无法成功重新循环 while 循环

Question

我在以下代码中的目标是不断进行猜测，直到用户猜测正确的数字或​​退出。要退出，我可以轻松地跳出循环，但是当我尝试继续循环时，它无法正常工作。首先它需要多个输入，然后还完全重新生成我的数字，而我想要做的是不断猜测(询问用户)相同的随机数。下面是我的代码:

public class Test {
public static void main(String[] args) {
    int count, randNum, guess;
    count = 0;
    Scanner scan = new Scanner(System.in);

    while (true) {
        Random rand = new Random();
        randNum = rand.nextInt(100) + 1;
        System.out.println("Guess a number b/w 1 and 100");
        guess = scan.nextInt();
        count += 1;

        if (guess == randNum) {
            System.out.println("Correct guess.");
            System.out.println("It took " + count + " tries to guess the right number");
            System.out.println("Would you like to play again? ");
            System.out.println("Press any letter to play again or q to quit: ");
            if (scan.next().charAt(0) == 'q' || scan.next().charAt(0) == 'Q') {
                break;
            }
            else{
                continue;
            }
        }
        if (guess > randNum) {
            System.out.println("Your guess is bigger than actual number. Would you like to try again?");
            System.out.println("Press q to quit or any other letter to try again");
            if (scan.next().charAt(0) == 'q' || scan.next().charAt(0) == 'Q') {
                break;
            }
            else {
                continue;
            }
        }
        else if (guess < randNum) {
            System.out.println("Your guess is smaller than actual number. Would you like to try again?");
            System.out.println("Press q to quit or any other letter to try again");
            if (scan.next().charAt(0) == 'q' || scan.next().charAt(0) == 'Q') {
                break;
            }
            else  {
                    continue;
                }
            }

        }

}

}

Answer 1

生成随机数的代码应该放在while语句之前。当您调用 continue 时，它会返回到 while block 的第一行，从而生成另一个随机数。