java - How to properly import a new file into my media player -

i cant seem new file loaded media player. idea why? have tried using jfilechooser swing wasn't compatible , cant fx version work. able file open bar show up. can see open button, when selected- nothing happens.

is there wrong scenes?

package jjcg;  import java.io.file; import java.net.malformedurlexception; import javafx.application.application; import javafx.event.actionevent; import javafx.scene.scene; import javafx.scene.control.menu; import javafx.scene.control.menubar; import javafx.scene.control.menuitem; import javafx.scene.paint.color; import javafx.stage.filechooser; import javafx.stage.stage;  /**  *  * @author jarai  */ public class jjcg extends application {      player player;     filechooser filechooser;     @override     public void start(final stage primarystage) {          menuitem open = new menuitem("open");         menu file = new menu("file");         menubar menu = new menubar();          file.getitems().add(open);         menu.getmenus().add(file);          filechooser = new filechooser();          open.setonaction((actionevent e) -> {             player.player.pause();             file file1;             file1 = filechooser.showopendialog(primarystage);             if (file1 != null) {                 try {                     player = new player(file1.touri().tourl().toexternalform());                     scene scene = new scene(player, 1400,750, color.black);                     primarystage.setscene(scene);                 }catch (malformedurlexception e1) {                 }             }         });          player player2;         player2 = new player("file:///c:/users/jarai/videos/bl.mp4");         player2.settop(menu);         scene scene = new scene(player2, 1400, 750, color.black);         primarystage.setscene(scene);         primarystage.show();      }     public static void main(string[] args) {         launch(args);     }  }