Question

我查看了网站，看到了类似的帖子，但需要进一步澄清。像往常一样，Java新手并想要一些帮助。该场景是乐透计划。将数字输入数组1，数组2生成随机数。将输入与随机数组进行比较。目前坚持将我的输入与随机数组进行比较，并打印出多少数字是正确的。任何帮助，将不胜感激。谢谢。

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

{
      Scanner input = new Scanner(System.in);
      boolean isNumber;
      int[] numbers = new int[6];
                {
                    System.out.println("Please enter number: ");
               do{   
                    if (input.hasNextInt()) 
                    {    
                        System.out.println("Please enter number: ");
                            for (int h = 0; h < 5; h++)
                            numbers[h] = input.nextInt();
                            isNumber = true;
                    } else 
                    {
                        System.out.println("Not a valid input!");
                        isNumber = false;
                        input.next();
                    }

                }  while (!(isNumber));

                    for (int h = 0; h < numbers.length; h++)
                     System.out.print(numbers[h] + " ");      

                        {

                                    int[] lottery = new int[6];
                                    int randomNum;

                                    for (int i = 0; i < 6; i++)
                                    {
                                        randomNum = (int) (Math.random() * 50); 
                                        for (int x = 0; x < i; x++)
                                        {
                                            if (lottery[i] == randomNum) 
                                            {
                                                randomNum = (int) (Math.random() * 50);
                                            }

                                        }
                                        lottery[i] = randomNum;
                                    }

                                    for (int i = 0; i < lottery.length; i++)
                                        System.out.print(lottery[i] + " ");
                        }
                }   
        }
    }
}

Answer 1

将此代码添加到最后：

   for (int i = 0; i < numbers.length; i++) {
        for (int j = i; j < lottery.length; j++) {
            if (numbers[i] == lottery[j]) {
                counter++;
            }
        }
    }
    System.out.println("\n" + counter);

将第一个for循环从for (int h = 0; h < 5; h++)更改为for (int h = 0; h <= 5; h++)并创建计数器变量

Java：将扫描仪输入数组与随机生成的数组进行比较

1 个答案: