anyone know the reason why 6 is missing from the second statement?

code:

public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Enter the numbers: "); int num = scan.nextInt(),sum = 0; if (num0;i--) { System.out.print(" " + digit[i]); } System.out.println(" Sum of digits is: "+sum); } }

Enter the numbers: 3456 Digits of 3456 are: 3 4 5 Sum of digits is: 18 Process completed