Question

我有一个关于这个HiLo游戏的真正快速问题。当我去测试它时，一切正常，除非我希望它显示它们猜测了多少尝试。我想说的是它不会计算最初的猜测，但会计算它之后的数字，因此它显示的猜测比实际值少。这是我的代码。

编辑：我有另一个快速的问题。我希望程序不计算猜测，如果它超出0到10的范围。我将如何这样做，因为当我运行程序时，它将猜测作为我的尝试之一。

＆＃13;

import java.util.Random;     // Random number generator class
import java.util.Scanner;    // reads user inputs

public class HiLo
{
	public static void main (String[] args)
	{
		//declare variables
		final int MAX = 10;
		int answer, guess;
		int numberOfTries = 0 ;
		String again;

		Scanner Keyboard = new Scanner(System.in);

		do

		{
			System.out.print (" I'm thinking of a number between 0 and "
			+ MAX + ". Guess what it is: ");
			guess = Keyboard.nextInt();
			//guess
			Random generator = new Random(); //Random  number generator. 0 to 10.
			answer = generator.nextInt(MAX) +1;

			if (guess > 10)//if guess is bigger than 10 then error message
			{
			System.out.println ("ERROR – Your guess is out of the range 0 to 10.");
			}
			if (guess < 0)//if guess is smaller than 0 then error message
			{
		    System.out.println ("ERROR – Your guess is out of the range 0 to 10.");
			}

			while (guess != answer )//If guess is not the answer
			{

			if (guess > answer )//If guess is more than the answer
			{
			System.out.println ("You guessed too high! \nTry again:");
			guess = Keyboard.nextInt();
			}

			if (guess < answer )//If guess is less than the answer
			{
			System.out.println ("Too Low! \nTry again:");
			guess = Keyboard.nextInt();
			}

			numberOfTries=numberOfTries+1;

			}//end of the loop

			// display result
			if ( guess == answer)
			{
			numberOfTries += 1;
			System.out.println ("YOU WIN!");
			System.out.println("It took you " + numberOfTries + " tries!") ;
			System.out.println();
			System.out.print( "Do you want to play again(Y/N)?");
			}


			Keyboard.nextLine(); // skip over enter key
			again = Keyboard.nextLine();

			numberOfTries=0;



		}while (again.equalsIgnoreCase ("Y") );



	} // end of class

} //end of main

＆＃13;

谢谢！

Answer 1

你应该把numberOfTries + = 1放在if（guess == answer）里面，这样它也会计算正确的答案

if ( guess == answer)
        {
        numberOfTries += 1;   // <--- This adds the final guess
        System.out.println ("YOU WIN!");
        System.out.println("It took you " + numberOfTries + " tries!") ;
        System.out.println();
        System.out.print( "Do you want to play again(Y/N)?");
        }

Answer 2

初始化并将其重置时，应将numberOfTries设置为1，这样在进入while (guess != answer )循环之前已经考虑了第一个猜测

HiLo游戏随机数生成器

2 个答案: