lire le fichier txt javafx

 package blah;
 import javafx.application.Application;
 import javafx.stage.Stage;
 import javafx.stage.FileChooser;
 import javafx.scene.Scene;
 import javafx.scene.layout.VBox;
 import javafx.scene.layout.HBox;
 import javafx.scene.text.Text;
 import javafx.scene.control.Button;
 import javafx.event.ActionEvent;
 import javafx.event.EventHandler;
 import java.io.File;

public class blah
    extends Application {

private Text actionStatus;
private Stage savedStage;


public static void main(String [] args) {

    Application.launch(args);
}

@Override
public void start(Stage primaryStage) {
    Button open = new Button("open");
    open.setOnAction(new SingleFcButtonListener());
    HBox open1 = new HBox(10);
    open1.getChildren().addAll(open);
    Button save = new Button("Save");
            HBox save1 = new HBox(10);
            save1.getChildren().addAll(save);

    actionStatus = new Text();



    VBox vbox = new VBox(30);
    vbox.getChildren().addAll( open1,save1,  actionStatus);
    Scene scene = new Scene(vbox, 500, 300); 
    primaryStage.setScene(scene);
    primaryStage.show();
    savedStage = primaryStage;
}

private class SingleFcButtonListener implements EventHandler<ActionEvent> {

    @Override
    public void handle(ActionEvent e) {

        showSingleFileChooser();
    }
}

private void showSingleFileChooser() {

    FileChooser fileChooser = new FileChooser();
    File selectedFile = fileChooser.showOpenDialog(null);

    if (selectedFile != null) {

        actionStatus.setText("File selected: " + selectedFile.getName());
    }

   }

}
MightyK24