Question

I am trying to write a program that asks a user for a ten digit number and then stores each digit in an array.

public class checksum {

public static void main(String[] args) {

    int david[] = new int[10];
    System.out.println("Enter your 10 digit number: ");
    Scanner scan = new Scanner(System.in);

    for (int i = 0; i < david.length; i++) {

        david[i] = scan.nextInt();
    }

    System.out.println(david);

}

}

Can anyone tell me where I am going wrong?

Answer 1

Read it as String and then populate array using String.charAt

    int david[] = new int[10];
    System.out.println("Enter your 10 digit number: ");
    Scanner scan = new Scanner(System.in);
    String str = scan.next();
    if (str.length() < david.length) {
        System.out.println("invalid number");
    }
    for (int i = 0; i < david.length; i++) {

        david[i] = Character.digit(str.charAt(i), 10);
    }
    System.out.println(Arrays.toString(david));

Output:

Enter your 10 digit number: 
1234567890
[1, 2, 3, 4, 5, 6, 7, 8, 9, 0]