Method handle

src/main/java/exitcode/LoginScreen.java:641–657

(KeyEvent event)

        finishBox.getChildren().addAll(systemLabel4, spacer, finish_button);
        systemField.addEventFilter(KeyEvent.KEY_TYPED, new EventHandler<KeyEvent>() {
            @Override
            public void handle(KeyEvent event) {
                String character=event.getCharacter();
                event.consume();
                if(!(systemField.getText().length() >= 32)) {
                    character = character.replace(" ", "-").toLowerCase();
                    if(character.matches("[a-z]")) {
                        systemField.setText(systemField.getText() + character);
                        systemField.end();
                    } else if(character.matches("[\\d]|[-]")) {
                        if(!(systemField.getText().length() < 1)) {
                            systemField.setText(systemField.getText() + character);
                            systemField.end();
                        }
                    }
                }
            }
        });

        Main.main_primaryStage.getScene().setRoot(NameSystem.main_root);