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Program in Java: To add a node at the beginning of a linkedlist

 Node addBegin(int data)

    {

        Node temp = new Node();

        temp.data=data;

        if(this.link==null && this.data==0) 

        { //if the entire linked list is empty

            this.data=data;

            return this;

        }

        else

        {

            Node ptr=this;

            temp.link=ptr;

            ptr=temp;

            return ptr;

        }


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