循环时无法停止 [英] Can't stop while loop

问题描述

在我创建的这个游戏中，我遇到了一个问题。一切都很好，除了如果您由于某种原因失败而导致游戏重新启动，那不是我想要的。我想显示要设置的内容，然后中断循环，由于某些原因 break; 无法正常工作。
代码：

In this game that I created I ran into a problem. It all works great except that if you fail for some reason the game just restarts and that's not what I want. I want to display what I have it set to display and then break the loop, for some reason the break; isn't working. Code:

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;
          }
        }
      }
    }
}

推荐答案

如果想中断外循环，则可以使用嵌套循环，您可以添加标签前缀 ¹

With nested loops if you want to break the outer loop you might add a label prefix¹.

game: while (true) {

然后您可以

break game;

终止标有 game 的语句

^{1 _{另请参见 JLS-14.7。带标签的声明（部分说明）声明可能具有 标签 前缀。}}

^{1_{See also JLS-14.7. Labeled Statements which says (in part) Statements may have label prefixes.}}

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