Question

尝试制作一个彩票游戏，将用户输入与存储彩票答案的随机生成的数据进行比较（不工作100％不确定为什么有时候它不会在答案中提取，有时会获得额外的答案.EG。总计柜台坏了？）。但是我的验证方法不正确，我不确定如何修复这个想法？

import java.util.Random;
import java.util.Scanner;

public class TestingClassDemo {
    public static void main(String[] args) {

        int input; //Holds keyboard input
        final int TOTAL_ANSWERS = 10; //Number of answers
        int[] guesses = new int[TOTAL_ANSWERS]; //Array to hold answers

        //Creates a Scanner object for keyboard input
        Scanner userInput = new Scanner(System.in);

        //Gets the users Input
        System.out.println("Welcome to the Lottery!");

        for(int i = 0; i < guesses.length; i++)
        {
            System.out.print("Enter digit " + (i+1) + ": ");
            input = userInput.nextInt();

            while(!validate(guesses[i]))
            {
                System.out.println("Invalid input. Please enter a digit between 1-9");
                System.out.print("Enter digit " + (i+1) + ": ");
                input = userInput.nextInt();
            }
        }

        //Creates a Lottery Object
        TestingClass myLottery = new TestingClass(guesses);


        System.out.print("\nCorrect Numbers: " + (myLottery.totalCorrect()));

    }//End of Main Method
    public static boolean validate(int a)
    {
        boolean status;

        if( a == 1 || a == 2 || a == 3 || a == 4 || a == 5 || a == 6 || a == 7 || a == 8 || a == 9)
            status = true;
        else 
            status = false;
        return status;

    }
}//End of TestingClassDemo

其他班级

public class TestingClass {

    private int[] lotteryNumbers = new int[10];

    for(int i = 0; i < lotteryNumbers.length; i++)
    {
        lotteryNumbers[i] = (int) (Math.random()*10);
        System.out.print(lotteryNumbers[i]+ " ");
    }
    }//End of LOOP

    //Creates a Private Array for lotteryNumbers the user Guesses
    private int[] lotteryGuesses = new int[10];

    //Creates a Private int totalCorrect whether correct guesses are stored
    private int totalCorrect = 0;

    //Appends lotteryGuesses to lotteryNumbers for comparison
    public TestingClass(int[] lotteryNumbers)
    {
        lotteryGuesses = lotteryNumbers;
    }

    /** Compares whether the uses LotteryGuess are correct
     and if they are increases total Correct
     */
    public int totalCorrect()
    {
        for( int x = 0; x < lotteryNumbers.length; x++)
        {
            if (lotteryGuesses[x] == lotteryNumbers[x])
            {
                totalCorrect += 1;
            }
        }
        return totalCorrect;
    }
}//End of Public Class TestingClass

Answer 1

input = userInput.nextInt();

while(!validate(guesses[i]))
{
}

你在这里遗漏了一些东西。您应验证输入，并在有效时将其复制到猜测数组中。

input = userInput.nextInt();

while(!validate(input))
{ 
    ...  
}
guesses[i] = input;

不确定为什么我的方法不遵循我想要它做的事情

1 个答案: