(De)Serialization of the songs

Serialization and Deser now work fine for the songs. We're able to store
arrays.

2 files changed, 63 insertions, 42 deletions

diff --git a/Song.java b/Song.java
index 2890536..6e26332 100644
--- a/Song.java
+++ b/Song.java
@@ -15,7 +15,7 @@ public class Song extends MusicalElement{
 	public void setGenre(Genre genre){this.genre=genre.name();}
 
         public String toString() {
-		return "Title : "+getTitle()+"\nDuration : "+getDuration()+"\nContent : "+getContent()+"\nArtist : "+getArtist()+"\nGenre : "+getGenre();
+		return "Id : "+getId()+"\nTitle : "+getTitle()+"\nDuration : "+getDuration()+"\nContent : "+getContent()+"\nArtist : "+getArtist()+"\nGenre : "+getGenre();
 //                return getTitle()+";"+getDuration()+";"+getContent()+";"+getArtist()+";"+getGenre();
         }
 
diff --git a/jMusicHub.java b/jMusicHub.java
index 26fe9b6..82b364b 100644
--- a/jMusicHub.java
+++ b/jMusicHub.java
@@ -46,13 +46,69 @@ public class jMusicHub {
 		if (confirm.equalsIgnoreCase("Y")){ //if the user is ok with what he typed, create a song obj
 			Song newSong = new Song(title, duration, content, artist,genre);
 			return newSong;
-//				songs.add(newSong);
 		} else {
 			System.out.println("Aborting...");
 			System.out.println("");
 			return null;
 		}
 	}
+/**<h2>saveSongs</h2>
+ * saveSongs is used by the command "s"
+ * @param songs ArrayList<Song> Object
+ * */
+	public static void saveSongs(ArrayList<Song> songs){
+
+		String filename = "songs";
+
+		// Serialization
+		try {
+
+		    // Saving of object in a file
+		    FileOutputStream file = new FileOutputStream(filename);
+		    ObjectOutputStream out = new ObjectOutputStream(file);
+
+		    // Method for serialization of object
+		    out.writeObject(songs);
+
+		    out.close();
+		    file.close();
+
+		    System.out.println("Your songs have been serialized\n");
+		}
+		catch (IOException ex) {
+		    System.out.println("IOException is caught");
+		}
+	}
+
+/**<h2>listSongs</h2>
+ * listSongs is called when using the "S" command in order to list the songs inside the "songs" file.
+ * */
+
+	public static void listSongs(){
+		String filename="songs";
+
+		// Deserialization
+	        try {
+			// Reading the object from a file
+			FileInputStream file = new FileInputStream(filename);
+			ObjectInputStream in = new ObjectInputStream(file);
+
+			@SuppressWarnings("unchecked")
+
+			// Method for deserialization of object
+			ArrayList<Song> songs = (ArrayList<Song>)in.readObject();
+
+			in.close();
+			file.close();
+			System.out.println("Object has been deserialized");
+			for (Song s : songs ){
+				System.out.println(s);
+			}
+		}
+ 		catch (IOException ex) {System.out.println("IOException is caught");}
+		catch (ClassNotFoundException ex) {System.out.println("ClassNotFoundException is caught");}
+	}
+
 
 	public jMusicHub() {
 
@@ -65,18 +121,6 @@ public class jMusicHub {
 		//used to temporarly save the songs before any "s" command
 
 		System.out.println("Starting extraction");
-		//Here will be the process to extract the files
-/*	        try {
-			FileOutputStream fos = new FileOutputStream(file);
-			ObjectOutputStream oos = new ObjectOutputStream(fos);
-			oos.writeObject(albums);
-			oos.close();
-			fos.close();
-		}
-		catch (IOException ioe) {
-			ioe.printStackTrace();
-			return;
-		}*/
 		System.out.println("Extraction done\n");
 		//Here will be the number of playlist, albums, songs and auidobook extracted
 
@@ -85,7 +129,7 @@ public class jMusicHub {
 			userInput = scan.nextLine();
 			switch(userInput) {
 				case "h" : //page help
-					System.out.printf("c: add a new song\na: add a new album\n+: add an existing song to an album\nl: add a new audiobook\np: create a new playlist from existing songs and audiobooks\n-: delete a playlist\ns: save playlists, albums, songs and audiobooks into the concerned files\nh: print this help screen\nq: quit the program\n");
+					System.out.printf("c: add a new song\na: add a new album\n+: add an existing song to an album\nl: add a new audiobook\np: create a new playlist from existing songs and audiobooks\n-: delete a playlist\ns: save playlists, albums, songs and audiobooks into the concerned files\nS: List all your songs\nh: print this help screen\nq: quit the program\n");
 					break;
 				case "q" :
 					System.out.println("Goodbye !");
@@ -120,34 +164,11 @@ public class jMusicHub {
 				case "-":
 					break;
 				case "s":
-					for (Song s: songs){
-						String filename = "songs.csv";
-
-						// Serialization
-						try {
-
-						    // Saving of object in a file
-						    FileOutputStream file = new FileOutputStream
-						                                   (filename);
-						    ObjectOutputStream out = new ObjectOutputStream
-						                                   (file);
-
-						    // Method for serialization of object
-						    out.writeObject(s);
-
-						    out.close();
-						    file.close();
-
-						    System.out.println("Object has been serialized\n"
-						                      + "Data before Deserialization.");
-						    System.out.println(s);
-						}
-						catch (IOException ex) {
-						    System.out.println("IOException is caught");
-						}
-					}
+					saveSongs(songs);
+					break;
+				case "S":
+					listSongs();
 					break;
-
 				default :
 					System.out.println("Unknown command. Type h for help.");