Помогите пожалуйста с реализацией метода addByIndex в LinkedList, не понимаю как это нужно сделать. Если сможете, пожалуйста объясните. Буду благодарен!

private Node head;

public void addByIndex(int index, int element) {
		int printIndex = index;
		Node newNode = new Node(element);

		if (index == 0) {
			//Provide implementation where the index at which to add an element is 0.

			//KEEP THIS LINE TO PRINT RESULT!
			System.out.println("Element " + element + " was added at index " + index + ".");
		} else {
			//Provide implementation where the index at which to add an element is greater than 0.
				for (int i = 0; i < index; i++) {
					head = head.next;
				}


			//KEEP THIS LINE TO PRINT RESULT!
			System.out.println("Element " + element + " was added at index " + printIndex + ".");
		}
}

public class Node {
		private int data;
		private Node next;

		public Node(int data) {
			this.data = data;
			this.next = null;
		}
}