/**
 * Author by flo on 10/25/15.
 * Project Num : Project 4
 * Purpose     : Node class to hold data when called from Driver class
 *             : This class holds next node pointer and text data in each node
 * Algorithm   : Just a simple Node class which has various methods to get and set
 *             : text data values and return a node to user
 *             :
 * Compile     : javac Project4Driver.java
 *             : java Project4Driver
 */

public class Node {

    // Node Data members
    public String data;
    public Node next;

    // Default empty Node Constructor
    public Node() {
        this.data = "";
        this.next = null;
    }

    // Node constructor with data
    public Node(String d) {
        this.next = null;
        this.data = d;
    }

    // Node constructor specify a particular node
    public Node(String d, Node n) {
        this.next = n;
        this.data = d;
    }

    // return next node
    public Node getNext() {
        return this.next;
    }

    // set this node to next node
    public void setNext(Node n) {
        this.next = n;
    }

    // return data of a node
    public String getData() {
        return this.data;
    }

    // set the data of a node to String value
    public void setData(String d) {
        this.data = d;
    }

    // test to see if there is next node
    public boolean hasNext()      {
        return this.next == null;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Node node = (Node) o;

        if (data != null ? !data.equals(node.data) : node.data != null) return false;
        return !(next != null ? !next.equals(node.next) : node.next != null);
    }

    @Override
    public int hashCode() {
        int result = data != null ? data.hashCode() : 0;
        result = 31 * result + (next != null ? next.hashCode() : 0);
        return result;
    }

    @Override
    public String toString() {
        return "Node{" +
                "data='" + data + '\'' +
                ", next=" + next +
                '}';
    }
}