While循环遇到麻烦

Question

我已经尝试过如下代码。

public class GuessNumber {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        Random rand = new Random();

        int number = rand.nextInt(100) + 1;

        int guess;

        System.out.println("Guess the number between 1 and 100");
        System.out.println("");

        guess = scan.nextInt();

        while (guess < number) {
            System.out.println("Higher!");
            guess = scan.nextInt();
        }
        while (guess > number) {
            System.out.println("Lower!");
            guess = scan.nextInt();
        }
        while (guess == number) {
            System.out.println("Correct!");
            break;
        }
    }
}

而且我很难让它询问直到用户获得正确的号码。 并在游戏结束时询问用户是否要再次玩游戏

Answer 1

您在这里使用循环

while (guess < number) {
    System.out.println("Higher!");
    guess = scan.nextInt();
}
while (guess > number) {
    System.out.println("Lower!");
    guess = scan.nextInt();
}
while (guess == number) {
    System.out.println("Correct!");
    break;
}

有创造力 。 它碰巧有缺陷，但是很有创造力。 你需要类似的东西

while (guess != number) {
  System.out.println((guess < number) ? "Higher!" : "Lower!");
  guess = scan.nextInt();
}
System.out.println("Correct!");

Answer 2

您只需要一个while循环。 在循环中重新排列逻辑。

boolean isRunning = true;

while(isRunning){

guess = scan.nextInt();

if(guess < number){
  System.out.println("Higher!");
}else if(guess > number){
  System.out.println("Lower!");
}else if(guess == number){
  System.out.println("Correct!");
//ask if need another input. (want to continue or not)
 if(not continue){
    break; or isRunning = false;
 }

}


}

Answer 3

逻辑并不完全正确。 您需要一个while循环来检查每个条件，并在猜测不等于该数字的情况下继续请求一个新数字。

while (guess != number) {
  if (guess < number)
    System.out.println("Higher!");
  else
    System.out.println("Lower!");
  guess = scan.nextInt();
}
System.out.println("Correct!");

Answer 4

while (true) {
     if(guess < number)       
        System.out.println("Higher!");
     else if(guess > number)
        System.out.println("Lower!");
     else if (guess == number){
        System.out.println("Correct!");
     }
     guess = scan.nextInt();
}