// ListNode.java

public class ListNode
{
	protected Object data;
	protected ListNode nextNode;


	// constructor creates ListNode that refers to object
	public ListNode( Object object )
	{
		this( object, null );
	} // end constructor


	// constructor creates ListNode that refers to object and next node
	public ListNode( Object object, ListNode node )
	{
		data = object;
		nextNode = node;
	} // end ListNode two-argument constructor


	// set data
	public void setData( Object object )
	{
		data = object;
	} // end method set data


	// return reference to data in node
	public Object getObject()
	{
		return data;
	} // end method getObject


	// set next node
	public void setNextNode( ListNode node )
	{
		nextNode = node;
	} // end method setNextNode
	// return reference to next node in list


	public ListNode getNext()
	{
		return nextNode;
	} // end method getNext
} // end class ListNode