Question

在用户输入猜测之前，阵列正在打印。我确定它在错误的位置。我需要数组来记录猜测的次数，然后当用户最终猜出正确的数字时，我需要它来打印出它所花费的尝试次数。最后我会添加回合，但我想确保在我这样做之前可以正确打印阵列。

// "Guess My Number"
import java.util.Random; //program uses random 
import java.util.Scanner; //program uses scanner

public class GuessMyNumber{
     public static void main(String[] args){
            Scanner input = new Scanner ( System.in );
            int randomNum;
            int userNum;
            int counter;
            Random randomNumbers = new Random();
            randomNum = 1 + randomNumbers.nextInt(11);
            counter = 1;

            System.out.println( "Enter a number (no decimals) from 1 to 1000: \n" );
            userNum = input.nextInt();

            int[] guess;
            guess = new int[ 99 ];//array of 100 guesses
            for (int guesses = 0; guesses < guess.length; guesses++ ){
                    System.out.printf("%5d%8d\n", guesses, guess[guesses] );
            }
            while (userNum != randomNum){
                  if (userNum < randomNum){    
                           System.out.printf( "%d is too low! Please pick another number.\n",            userNum);
                           ++counter;
                  }
                  else if (userNum > randomNum){
                          System.out.printf("%d is too high! Please pick another number.\n", userNum);
                          ++counter;
                  }
                          userNum = input.nextInt(); 
            }
            System.out.println( "\nCongratulations! You guessed the right number.\n");
            System.out.printf( "It took you %d tries!", counter);
     }        
}

Answer 1

您需要为'guess'的每个元素指定一个值。

for (...) {
    guess[guesses] = guesses; // or something else
    System.out.printf(...)
}

在用户输入后打印数组值

1 个答案: