Method itSearch

12_LinkedList.java/LL.java:105–117

(int key)

    //Iterative
    public int itSearch(int key) {
        Node temp = head;
        int i = 0;

        while(temp != null) {
            if(temp.data == key) {
                return i;
            }
            temp = temp.next;
            i++;
        }
        return -1;
    }

    public int recSearch(int key) {
        return searchHelper(head, key);