java - 无法停止 while 循环

Question

在我创建的这个游戏中，我遇到了一个问题。这一切都很好，除了如果你因为某种原因失败了，游戏就会重新启动，这不是我想要的。我想显示我设置为显示的内容，然后中断循环，由于某种原因 break; 不工作。代码:

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

public class GuessingGame1_3 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        Random rand = new Random();

        System.out.print("Pick a number to guess between: ");
        int userNumber = input.nextInt();

        int random = rand.nextInt(userNumber);

       if (random < 1) {
            random = random + 1;
       } else if (random > userNumber) {
            random = random - 1;
       }

        while (true) {
            System.out.print('\f');
            System.out.print("Pick the amount of attempts you would like to have (Max of 10 attempts): ");
            int userAttempts = input.nextInt();

          if (userAttempts > 10) {
             System.out.println("To Many Attempts");
             System.out.println("");
          } else if (userAttempts <= 10) {

            System.out.println("Version: 1.3");
            System.out.println("----------------------------------------------------------------------");
            System.out.println("You have " + userAttempts + " attempts to guess the number or else you fail. Goodluck!");
            System.out.println("");
            System.out.println("Type 'begin' to Begin!");
            String start = input.next();
            System.out.print('\f');

            if (start.equals("begin")) {
            for(int i=1; i<userAttempts + 1; i++) {
              System.out.print("Enter a number between 1-" + userNumber + ": ");
              int number = input.nextInt();

              if (number > random) {
                System.out.println("Too Big");
                System.out.println("");
              } else if (number < random) {
                System.out.println("Too Small");
                System.out.println("");
              } else if (number == random) {
                System.out.println("Correct!");
               break;
              }

              if (i == userAttempts) {
               System.out.println("You have failed");
               System.out.println("Number Was: " + random);
               break;
              }
            }
          } else if (!start.equals("begin")) {
            System.out.print('\f');
            System.out.println("Incorrect Command");
            System.out.println("Please Exit Console And Retry");
            break;
          }
        }
      }
    }
}

Answer 1

对于嵌套循环，如果您想中断外层循环，您可以添加标签前缀¹。

game: while (true) {

那么你可以

break game;

终止标记为game 的语句。

^{1_{另见 JLS-14.7. Labeled Statements它说(部分地)Statements may have label prefixes.}}