public static SinglyLinkedListNode insertNodeAtPosition(SinglyLinkedListNode head, int data, int position) {

SinglyLinkedListNode node = new SinglyLinkedListNode(data);
if (head == null){
    return node;
}

    if (position == 0){
        node.next = head;
        return node;
    }

    else {
        SinglyLinkedListNode current = head;
        for (int i = 0; i < position - 1; i++){
            current = current.next;
        }

        node.next = current.next;
        current.next = node;
        return head;
    }

}