Java猜谜游戏。如何输入数据验证(范围检查)以及如何输入猜测？

Question

我正在为类做一个项目。这是一个猜谜游戏，获得一个随机数，然后用户猜测它是什么。我已经有了该项目的工作版本，但根据我的指示，它需要数据验证(范围检查最好)，并且还需要根据用户正确猜测的尝试次数显示特定消息。如果它小于 3，它应该说“干得好!”如果大于 3 但小于 7，则应显示“需要更多练习”之类的内容。如果超过 7，它应该说“需要更多练习”。我不想解构我的整个项目，我只想添加其中，并进行相应的调整。有人可以给我一种编码这些东西的方法吗？

这是我的代码:

import java.util.Scanner;

public class GuessingGameCalc {

    private static void displayWelcomeMessage(int max) {
       System.out.println("Welome to the Java Guessing Game!");
       System.out.println(" ");
       System.out.println("I'm thinking of a number between 1 and" + " " + max);
       System.out.println(" ");   
    }  

    public static int calculateRandomValue(int max){
       double value = (int) (Math.random() * max + 1);
       int number = (int) value;
       number++;
       return number;
    }

    public static void main(String[] args){
        final int max = 100;
        String prompt = "y";
        displayWelcomeMessage(max);
        int unit = calculateRandomValue(max);
        Scanner sc = new Scanner(System.in);
        int counter = 1;

        while (prompt.equalsIgnoreCase("y")) {
            while (true) {
                System.out.println("Please enter a number.");  
                int userEntry = sc.nextInt();

                if (userEntry < 1 || userEntry > max) {
                    System.out.println("Invalid guess! Guess again!");
                    continue;
                }

                if (userEntry < unit) {
                    System.out.println("Too low! Guess higher!");
                }else if (userEntry > unit) {
                    System.out.println("Too high! Guess lower!");
                } else {
                    System.out.println("Congratulations! You guessed it in" + " " + counter + " " + "tries!\n");
                    break;
                }
                counter++;
            }

            System.out.println("Would you like to try again? Yes or No?");

            prompt = sc.next();
            System.out.println("Goodbye!");
       }
    } 

   public static void validateTheData() { }
}

Answer 1

似乎您需要做的就是传递计数器变量来验证 Data 方法并输出消息，如下所示:

...
while (true) {
  System.out.println("Please enter a number.");

  int userEntry = sc.nextInt();

  if (userEntry < 1 || userEntry > max) {
    System.out.println("Invalid guess! Guess again!");
    continue;
  }

  if (userEntry < unit) {
    if( (unit - userEntry) > 10 ){
      System.out.println("Way Too low! Guess higher!");
    } else {
      System.out.println("Too low! Guess higher!");
    }
  } else if (userEntry > unit) {
    if( (userEntry - unit) > 10 ){
      System.out.println("Way Too high! Guess lower!");
    } else {
      System.out.println("Too high! Guess lower!");
    }
  } else {
    validateTheData(counter);
    break;
  }
  counter++;
}
...

public static void validateTheData(int count) {
  if( count < 3){
    System.out.println("Good job!");
  } else if( count < 7 ){
    System.out.println("Need more practice.");
  } else{
    System.out.println("Need way more practice.");
  }
}