JAVA-将数组返回到main

Question

在我正在处理的程序中,我创建了一个循环来接收20个单独的字符作为用户输入,转换为char,存储在array2中,并将array2返回到main.当我运行我编写的程序时,似乎我编写的代码没有正确地存储array2中的字符.

主要:

// Create array to hold user's answers, and pass answers to the array.
char array2[ ] = new char[20];
getAnswers(array2);

在getAnswers()中:

// getAnswers method requests user input and passes to array2.
public static char[ ] getAnswers(char array2[ ])
{
   String input;  // Holds user input.

   Scanner keyboard = new Scanner(System.in);

   // Request user input.
   System.out.println("Enter the answers for the the multiple choice exam.");

   // Loop to receive input into array.
   for (int index = 0; index < 20; index++)
   {
      System.out.print("Enter number " + (index + 1) +": ");
      input = keyboard.nextLine();
      array2 = input.toCharArray();
   }
   return array2;
}

Answer 1

尝试

array2[index] = input.charAt(0);

在将值输入到输入变量之后,而不是每次通过循环为其分配一个新的char数组.