Computational thinking for a software developer/computer programmer is a critical skill that is consistently applied. This lab requires you to develop a solution using Java object-oriented programming that simulates creating and managing a collection of songs. The system manages information about a collection of songs. The system stores the following information (for each attribute, choose any type that you think is appropriate--you must be able to justify the decisions you make): Collection Name: the name for the collections of songs Collection list of songs: the system allows you to create a collection with unlimited songs. You can add the same song multiple times to any given collection. Hence, the collection allows songs to be duplicated Note: other system functionalities can be inferred from the given JUnit test. o NoSystem.out.printlnstatementsshouldappearinit. o NoScanneroperations(e.g.,input.nextInt())shouldappearinit. Instead, declare the method's input parameters as indicated by the JUnit tests. code for song.java : public class Song { // ALREADY IMPLEMENTED; DO NOT MODIFY private String songArtist; private String songTitle; private String songAlbum; private double songPrice; private int songYear; private int songLength; // Length in seconds   // ALREADY IMPLEMENTED; DO NOT MODIFY public Song(String songTitle, String songArtist, String songAlbum, int songYear, int songLength, double songPrice) {   this.songArtist = songArtist; this.songTitle = songTitle; this.songAlbum = songAlbum; this.songPrice = songPrice; this.songYear = songYear; this.songLength = songLength; // length in seconds } // ALREADY IMPLEMENTED; DO NOT MODIFY public String getSongArtist() { return songArtist; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongArtist(String songArtist) { this.songArtist = songArtist; } // ALREADY IMPLEMENTED; DO NOT MODIFY public String getSongTitle() { return songTitle; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongTitle(String songTitle) { this.songTitle = songTitle; } // ALREADY IMPLEMENTED; DO NOT MODIFY public String getSongAlbum() { return songAlbum; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongAlbum(String songAlbum) { this.songAlbum = songAlbum; }   public double getSongPrice() { return songPrice; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongPrice(double songPrice) { this.songPrice = songPrice; } // ALREADY IMPLEMENTED; DO NOT MODIFY public int getSongYear() { return songYear; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongYear(int songYear) { this.songYear = songYear; }   public int getSongLength() { return songLength; } // ALREADY IMPLEMENTED; DO NOT MODIFY public void setSongLength(int songLength) { this.songLength = songLength; } // ALREADY IMPLEMENTED; DO NOT MODIFY @Override public String toString() { return String.format("Song|%-20s|%-15s|%-20s|%6s|%d:%02d|%6.2f", this.songTitle, this.songArtist, this.songAlbum, this.songYear > 0 ? String.format("%d", this.songYear) : "", this.songLength / 60, this.songLength % 60, this.songPrice); } // ALREADY IMPLEMENTED; DO NOT MODIFY @Override public int hashCode() { return Objects.hash(songAlbum, songArtist, songLength, songPrice, songTitle, songYear); } // ALREADY IMPLEMENTED; DO NOT MODIFY @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Song other = (Song) obj; return Objects.equals(songAlbum, other.songAlbum) && Objects.equals(songArtist, other.songArtist) && songLength == other.songLength && Double.doubleToLongBits(songPrice) == Double.doubleToLongBits(other.songPrice) && Objects.equals(songTitle, other.songTitle) && songYear == other.songYear; }} i need code for songCollection.java