JavaFX MediaPlayer play and pause

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Region;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import javafx.util.Duration;

public class Main extends Application {
  private static final String MEDIA_URL = "http://your server/sample.mp4";

  @Override//from w w  w.  ja v  a  2 s .  c o m
  public void start(Stage primaryStage) {
    Media media = new Media(MEDIA_URL);
    MediaPlayer mediaPlayer = new MediaPlayer(media);
    MediaView mediaView = new MediaView(mediaPlayer);

    Button playButton = new Button(">");
    playButton.setOnAction(e -> {
      if (playButton.getText().equals(">")) {
        mediaPlayer.play();
        playButton.setText("||");
      } else {
        mediaPlayer.pause();
        playButton.setText(">");
      }
    });

    Button rewindButton = new Button("<<");
    rewindButton.setOnAction(e -> mediaPlayer.seek(Duration.ZERO));
    
    Slider slVolume = new Slider();
    slVolume.setPrefWidth(150);
    slVolume.setMaxWidth(Region.USE_PREF_SIZE);
    slVolume.setMinWidth(30);
    slVolume.setValue(50);
    mediaPlayer.volumeProperty().bind(
      slVolume.valueProperty().divide(100));

    HBox hBox = new HBox(10);
    hBox.setAlignment(Pos.CENTER);
    hBox.getChildren().addAll(playButton, rewindButton,
      new Label("Volume"), slVolume);

    BorderPane pane = new BorderPane();
    pane.setCenter(mediaView);
    pane.setBottom(hBox);


    Scene scene = new Scene(pane, 650, 500);
    primaryStage.setTitle("MediaDemo");
    primaryStage.setScene(scene);
    primaryStage.show();    
  }


  public static void main(String[] args) {
    launch(args);
  }
}