import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.scene.control.Button;
import javafx.event.EventHandler;
import javafx.event.ActionEvent;



public class EnkelKnapp extends Application {
	
	Button button = null;
	
	public void start(Stage stage) {
		
		VBox root = new VBox();
		
		button = new Button("Trykk her!");
		
		Knappebehandler k = new Knappebehandler();
		
		button.setOnAction(k);
		
		root.getChildren().add(button);
		
		
		Scene scene = new Scene(root);
		stage.setScene(scene);
		stage.setTitle("Hei!");
		stage.show();
	}
	
	class Knappebehandler implements EventHandler<ActionEvent> {
		
		public void handle(ActionEvent e) {
			button.setText("Hei verden");
		}
		
	}
	
	public static void main(String[] args) {
		Application.launch(args);
	}
}