import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.control.TextBox;
import javafx.stage.Stage;
import javafx.scene.input.KeyEvent;
 
public class KeyEvents extends Application {
 
    final ListView<String> console = new ListView<String>();
    //create a observableArrayList of logged events that will be listed in console
    final ObservableList<String> consoleObservableList = FXCollections.observableArrayList();
 
    {
        //set up the console
        console.setItems(consoleObservableList);
        console.setLayoutY(60);
        console.setPrefSize(400, 195);
    }
    final TextBox textBar = new TextBox("Write here");
 
    @Override
    public void start(Stage stage) throws Exception {
        Group root = new Group();
        Scene scene = new Scene(root, 500, 400);
        stage.setScene(scene);
 
        textBar.setPrefSize(200, 35);
        textBar.setLayoutX(100);
        textBar.setStyle("-fx-font-size: 14;");
 
        textBar.setOnKeyPressed(new EventHandler<KeyEvent>() {
            public void handle(KeyEvent ke) {
                showOnConsole("Key Pressed: " + ke.getText());
            }
        });
 
        textBar.setOnKeyReleased(new EventHandler<KeyEvent>() {
            public void handle(KeyEvent ke) {
                showOnConsole("Key Released: " + ke.getText());
            }
        });
 
        textBar.setOnKeyTyped(new EventHandler<KeyEvent>() {
            public void handle(KeyEvent ke) {
                String text = "Key Typed: " + ke.getCharacter();
                showOnConsole(text);
            }
        });
 
        root.getChildren().addAll(textBar, console);
        stage.setVisible(true);
    }
 
    public static void main(String[] args) {
        Application.launch(args);
    }
 
    private void showOnConsole(String text) {
        //if there is 8 items in list, delete first log message, shift other logs and  add a new one to end position
        if (consoleObservableList.size() == 8) {
            consoleObservableList.remove(0);
//            consoleObservableList.clear();
        }
        consoleObservableList.add(text);
    }
}