public void insertAfter(int data){
		Link lk=new Link();
		lk.data=data;
		
		if(current.next!=null){
			current.next.prior=lk;
			lk.next=current.next;
		}
		else{
			mylist.last=lk;
		}
		lk.prior=current;
		current.next=lk;
			
	}