Recursion - digits in reverse order

Question

I need to implement a recursive method printDigits that takes an integer num as a parameter and prints its digits in reverse order, one digit per line.

This is what

Answer 1

Relatively simple since you need to print one digit per line. You also state that you print its digits, which implies that leading zeros are still going to be displayed. Our test case

123000 prints :

0

0

0

3

2

1

here is the code, no while, no string, and no math library :

    private void printIntegerDigitsReversed(int i) {
        if (i / 10== 0 ){
            System.out.println(i);
        }
        else{
            printIntegerDigitsReversed(i%10);
            printIntegerDigitsReversed(i/10);
        }
    }