javafx button.onclick() not working - javafx

Question

i am having a problem when i click on the button it doesn t work.
actually for the moment i am just asking that the button execute a system.out.println() just for the test. the name of the button is btndetailUser
listRechercheUser.setCellFactory(new Callback<ListView<User>, ListCell<User>>() {
#Override
public ListCell<User> call(ListView<User> p) {
ListCell<User> cell;
cell = new ListCell<User>() {
#Override
protected void updateItem(User user, boolean bln) {
super.updateItem(user, bln);
if (user != null) {
ImageView img;
String mm=user.getPath().trim();
if (mm.equals("fusee.png")){
img = new ImageView(new Image("mto/cr/images/"+mm));}
else{
img = new ImageView(new Image("mto/cr/images/mains-fonds.png"));
}
VBox vb = new VBox(10);
HBox hb = new HBox(20);
VBox vb1 = new VBox(20);
VBox vb3= new VBox(20);
vb1.getChildren().add(new Label(" "));
hb.setStyle("-fx-border-color: #C8C8C8 ;");
vb.setAlignment(Pos.CENTER);
VBox vb2 = new VBox(30);
vb.setAlignment(Pos.CENTER);
vb2.setAlignment(Pos.BASELINE_LEFT);
vb3.setAlignment(Pos.CENTER_RIGHT);
Label id = new Label(user.getId()+"id firas:");
Label username = new Label(user.getUsername()+" username firas:");
Label nom = new Label(user.getNom()+"nom firas:");
Label prenom = new Label(user.getPrenom()+"prenom firas:");
Button btndetailUser = new Button();
btndetailUser.setId("btndetailUser");
btndetailUser.setText("btndetailUser "+user.getId());
Image imageAccesProjet = new Image("mto/cr/images/enter.png");
ImageView enterIV= new ImageView(imageAccesProjet);
enterIV.setFitHeight(10);
enterIV.setFitWidth(10);
btndetailUser.setGraphic(enterIV);
btndetailUser.getStyleClass().add("buttonLogin");
System.out.println(btndetailUser.getText());
btndetailUser.setOnMouseClicked(
(MouseEvent event2) ->
System.out.println("firas"));
btndetailUser.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
System.out.println(".handle()");
}
});
vb.getChildren().addAll(new Label(" "), img, new Label(" "),username);
vb2.getChildren().addAll(nom, prenom);
vb3.getChildren().addAll(btndetailUser);
hb.getChildren().addAll(vb1, vb, vb2,vb3);
setGraphic(hb);
}
}
};
return cell;
}
});

Answer 1

try something like,
btndetailUser.setOnAction(e -> {
System.out.println("freetext")
});