It's not working what am I doing wrong?

Given main(), complete the SongNode class to include the printSongInfo() method. Then write the Playlist class' printPlaylist() method to print all songs in the playlist. DO NOT print the dummy head node.

Ex: If the input is:

Stomp! 380 The Brothers Johnson The Dude 337 Quincy Jones You Don't Own Me 151 Lesley Gore -1 

the output is:

LIST OF SONGS ------------- Title: Stomp! Length: 380 Artist: The Brothers Johnson Title: The Dude Length: 337 Artist: Quincy Jones Title: You Don't Own Me Length: 151 Artist: Lesley Gore

import java.util.Scanner;

public class Playlist { // TODO: Write method to ouptut list of songs public static void printPlaylist(SongNode songs){ SongNode song = song.getNext(); while (song != null) { song.printSongInfo(); System.out.println(); song = song.getNext(); } } public static void main (String[] args) { Scanner scnr = new Scanner(System.in); SongNode headNode; SongNode currNode; SongNode lastNode;

String songTitle; int songLength; String songArtist;

// Front of nodes list headNode = new SongNode(); lastNode = headNode;

// Read user input until -1 entered songTitle = scnr.nextLine(); while (!songTitle.equals("-1")) { songLength = scnr.nextInt(); scnr.nextLine(); songArtist = scnr.nextLine(); currNode = new SongNode(songTitle, songLength, songArtist); lastNode.insertAfter(currNode); lastNode = currNode; songTitle = scnr.nextLine(); } // Print linked list System.out.println("LIST OF SONGS"); System.out.println("-------------"); printPlaylist(headNode); } }

public class SongNode { private String songTitle; private int songLength; private String songArtist; private SongNode nextNodeRef; // Reference to the next node

public SongNode() { songTitle = ""; songLength = 0; songArtist = ""; nextNodeRef = null; }

// Constructor public SongNode(String songTitleInit, int songLengthInit, String songArtistInit) { this.songTitle = songTitleInit; this.songLength = songLengthInit; this.songArtist = songArtistInit; this.nextNodeRef = null; }

// Constructor public SongNode(String songTitleInit, int songLengthInit, String songArtistInit, SongNode nextLoc) { this.songTitle = songTitleInit; this.songLength = songLengthInit; this.songArtist = songArtistInit; this.nextNodeRef = nextLoc; }

// insertAfter public void insertAfter(SongNode nodeLoc) { SongNode tmpNext;

tmpNext = this.nextNodeRef; this.nextNodeRef = nodeLoc; nodeLoc.nextNodeRef = tmpNext; }

// Get location pointed by nextNodeRef public SongNode getNext() { return this.nextNodeRef; }

// TODO: Write printSongInfo() method public void printInfo(){ System.out.println("Title: " + songTitle); System.out.println("Length: " + songLength); System.out.println("Artist: " + songArtist); } }