how to create nodes of different characteristics using a single node class in java?

Question

my node class is

class Node{

    protected int data;
    protected Node link;
    public Node(){
      link=null;
      data =0;
    }

    public Node(int d,Node n){
      data=d;
      link=n;  
    }

    public void setlink(Node n){
      link=n;
    }

    public void setData(int d){
      data=d;
    }

    public Node getlink(){
      return link;

    }

    public int getData(){
      return data;
    }
}

I want to create a node with 5 parts :

1. to store row no.
2. to store column no.
3. to store value
4. pointer to next row
5. pointer to next column

Answer 1

You can use following class as node with required values:

static class Node
    {
        int rowNo;
        int columnNo;
        int value;
        Node next;
        int nextColumnNo;
        Node(int r,int c,int v) 
        {
            rowNo=r;
            columnNo=c;
            value=v;
            next=null;
            nextColumnNo=0;
        }
    }

And use the nodes as follow by linking together:

head = new Node(1,11,11);
Node second = new Node(2,22,22);
Node third = new Node(3,33,33);

head.next=second;
second.next=third;

head.nextColumnNo = second.columnNo;
second.nextColumnNo = third.columnNo;