DAY 15 LINKED LIST HACKKERANK

  public static  Node insert(Node head,int data) {

        Node newNode=new Node(data); 

        Node temp=head;

        if(head==null){

            head=newNode;

            return head;

        }

        else{

            while(temp.next!=null){

                temp=temp.next;

            }

            temp.next=newNode;

            return head;

        }

        //Complete this method

    }