Question

我正在用java代码创建一个Guessing游戏程序。我遇到了主类和测试类运行的问题。任何帮助，将不胜感激。游戏的说明是计算机生成随机＃，用户必须猜测7个或更少的猜测数。如果猜测超过7，则游戏结束并询问用户是否想再次玩游戏？＆＃39;

这是我的猜测课程：

import java.util.Random;

public class Guess 
{
    int computersNumber; // A random number picked by the computer.
    int usersGuess = 0;      // A number entered by user as a guess.
    int guessCount = 0;      // Number of guesses the user has made.

    Random random = new Random();

    int randomNumber = random.nextInt(100);


    public Guess(int n)
    {
        usersGuess = n;
    }



   public boolean getGuess()
   {
       boolean isValid = false;
            if (isValid)
              {
                  return false;
              }

            if (usersGuess == computersNumber)

              {  
                  return true;
              }

            return isValid;
    }

   public boolean isGuessCorrect()
   {
       return getGuess() == computersNumber;
   }

   public int getCount()
   {
       guessCount ++;
       return guessCount;
   }

        boolean playAgain;


}

测试员/主要课程：

import java.util.Scanner;

public class GuessTester 
{
public static void main(String[] args) 
{
    Scanner in = new Scanner(System.in);

    System.out.println("Let's play a game!");
    System.out.println();
    System.out.println("The computer will generate a number between 0 and 100. You will have up to seven guesses"
                + "to figure out what the number is. Good luck!");
    System.out.println();

    System.out.print("What is your first guess? ");
    int n = in.nextInt();

    Guess guess = new Guess(n);

    if (guess.getGuess == computersNumber) 
    {
        System.out.println("That's Correct! ");
    }
    if (getCount == 7) 
    {
        System.out.println("You lose, you didn't get the number in 7 guesses.");
    }

    System.out.println("Would you like to play again? ");
    in.nextBoolean();

    System.out.println();

    System.out.println("Thanks for playing.");

    in.close();

}

}

Answer 1

您的代码中有一些不能编译的东西。你发布了所有代码吗？

首先要做的事情：如果您有class Guess并且想要访问其方法，则需要首先实例化Object class：

int n = in.nextInt();
Guess guess = new Guess(n);

接下来，为了实际访问guess的方法，它的写法如下：

if (guess.getGuess() == computersNumber) {
   System.out.println("That's Correct! ");
}

但是在您的示例中，变量computersNumber未在主类中定义，但它是Guess类的成员。由于computersNumber和方法getGuess()都是Guess类的一部分，因此最好从该类中实际访问它们并在那里进行比较。也许在一个单独的方法中：

public class Guess{
   ....
   public boolean isGuessCorrect(){
      return getGuess() == computersNumber;
   }
}

我在Guess类中看到的另一件事是你在getGuess()中访问了一些未定义的布尔变量：

if (!isValid) {
    return false;
}

isValid来自哪里？在哪里定义？

编辑：有点暗示道路：

您可以生成0到100之间的随机数，如下所示：

Random random = new Random();
int randomNumber = random.nextInt(100);  // this will be a number between 0 and 100
int another = random.nextInt(1000);   // you can reuse the random object and generate more numbers

使用测试人员类猜测游戏

1 个答案: