Display array in reverse

public class DisplayArrayInReverse {
    public static void main(String[] args) {
        int[] arr = new int[]{1, 2, 3, 4, 5, 6};

        reverse(arr, 0);
    }

    private static void reverse(int[] arr, int idx) {
        // base case
        if (idx == arr.length)
            return;
        
        // faith
        reverse(arr, idx + 1);
        
        // post order
        System.out.println(arr[idx]);
    }
}