Single Link-List with Operations - Add in Beginning, Add at End, Del at Beg, Del at End, Del any Element, Display, Search

import java.util.Scanner;

public class SingleLL

{

    Node start=new Node();

    Node end=new Node();

    Node curr=new Node();

    int num;

    SingleLL()

    {

        start=null;

        end=null;

        num=0;

    }

   

    void AddBeg(int val)

    {

        Node t=new Node();

        t.info=val;

        if(num++==0)

            end=t;

        else

            t.next=start;

        start=t;

    }

    void AddEnd(int val)

    {