complete code

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

src/main/java/sbu/javafx/Launcher.java

@@ -4,5 +4,6 @@ import javafx.application.Application;
 
 public class Launcher{
     public static void main(String[] args) {
-        // TODO: Launch the JavaFX application by calling Application.launch(Main.class)    }
+        Application.launch(MusicApp.class, args);
+    }
 }

src/main/java/sbu/javafx/MusicApp.java

@@ -13,10 +13,14 @@ public class MusicApp extends Application {
     public void start(Stage stage) throws IOException
     {
         FXMLLoader fxmlLoader = new FXMLLoader(MusicApp.class.getResource("App-view.fxml"));
-        Scene scene = new Scene(fxmlLoader.load());
+        Scene scene = new Scene(fxmlLoader.load(),500,450);
+
+        MusicController musicController = fxmlLoader.getController();
+        musicController.setStage(stage);
+
         stage.setTitle("Music Player");
         stage.setScene(scene);
-        //TODO: add icon to the stage
+
         stage.show();
     }
 

src/main/java/sbu/javafx/MusicController.java

@@ -1,31 +1,79 @@
 package sbu.javafx;
 
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
-import javafx.event.ActionEvent;
+import javafx.scene.Scene;
 import javafx.scene.control.Label;
-import javafx.scene.input.MouseEvent;
+import javafx.scene.control.ListView;
 import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
 
 public class MusicController {
 
-    // TODO: Define your UI components using the @FXML annotation.
+    @FXML
+    private Label nowPlayingLabel;
 
-    //TODO: Implement the logic to play a song. This method should update the UI to show which song is currently playing.
+    private final ObservableList<String> playlist =
+            FXCollections.observableArrayList();
+
+    private Stage stage;
+
+    public void setStage(Stage stage) {
+        this.stage = stage;
+    }
 
     @FXML
-    public void handlePlayAction() {
+    public void playSong1() {
-        //Update labels, change button icons, etc.
+        handlePlayAction("Blinding Lights");
     }
 
-    //TODO: Logic to add a specific song to the user's playlist.
+    @FXML
+    public void playSong2() {
+        handlePlayAction("Shape of You");
+    }
+
+    @FXML
+    public void playSong3() {
+        handlePlayAction("Believer");
+    }
+
+    public void handlePlayAction(String songName) {
+        nowPlayingLabel.setText("Now Playing: " + songName);
+    }
+
+    @FXML
+    public void addSong1() {
+        addToPlaylist("Blinding Lights");
+    }
+
+    @FXML
+    public void addSong2() {
+        addToPlaylist("Shape of You");
+    }
+
+    @FXML
+    public void addSong3() {
+        addToPlaylist("Believer");
+    }
 
     public void addToPlaylist(String songName) {
-        //Add the song to a list or update a ListView.
+        playlist.add(songName);
     }
 
-    // TODO:This method should open a new window or change the current scene  to display the "Playlist" page.
+    @FXML
-
     public void openPlaylistWindow() {
-        //Create a new stage and show the playlist UI.
+
+        Label title = new Label("My Playlist");
+
+        ListView<String> listView = new ListView<>();
+        listView.setItems(playlist);
+
+        VBox root = new VBox(10);
+        root.getChildren().addAll(title, listView);
+
+        Scene playlistScene = new Scene(root, 400, 300);
+
+        stage.setScene(playlistScene);
     }
 }

src/main/resources/sbu/javafx/App-view.fxml

@@ -1,8 +1,48 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.layout.HBox?>
 <?import javafx.scene.layout.VBox?>
-<VBox xmlns="http://javafx.com/fxml" alignment="CENTER" spacing="10">
 
-    <!-- TODO: Add your code here! -->
+<VBox xmlns="http://javafx.com/javafx"
+      xmlns:fx="http://javafx.com/fxml"
+      fx:controller="sbu.javafx.MusicController"
+      alignment="CENTER"
+      spacing="15">
+    <Label text="Music Player"/>
+
+    <Label fx:id="nowPlayingLabel"
+           text="Now Playing: None"/>
+
+    <!-- Song 1 -->
+    <HBox spacing="10" alignment="CENTER">
+        <Label text="Blinding Lights - The Weeknd - 3:20"/>
+        <Button text="Play"
+                onAction="#playSong1"/>
+        <Button text="Add to Playlist"
+                onAction="#addSong1"/>
+    </HBox>
+
+    <!-- Song 2 -->
+    <HBox spacing="10" alignment="CENTER">
+        <Label text="Shape of You - Ed Sheeran - 4:10"/>
+        <Button text="Play"
+                onAction="#playSong2"/>
+        <Button text="Add to Playlist"
+                onAction="#addSong2"/>
+    </HBox>
+
+    <!-- Song 3 -->
+    <HBox spacing="10" alignment="CENTER">
+        <Label text="Believer - Imagine Dragons - 3:24"/>
+        <Button text="Play"
+                onAction="#playSong3"/>
+        <Button text="Add to Playlist"
+                onAction="#addSong3"/>
+    </HBox>
+
+    <Button text="View Playlist"
+            onAction="#openPlaylistWindow"/>
 
 </VBox>