import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.layout.HBox;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.event.EventHandler;
import javafx.event.ActionEvent;
import javafx.geometry.Pos;
import javafx.scene.layout.GridPane;
import javafx.scene.text.Text;


public class Kalkulator extends Application {
    
    TextField x;
    TextField y;
    
    Text output = new Text("Utregning");
    /*Tips: Noen elementer b?r kunne hentes ut av en hendelsesbehandler!*/
    
    
  
    @Override
    public void start (Stage stage) {
		
		 x = new TextField("Skriv inn tall 1");
		y = new TextField("Skriv inn tall 2");
		
        VBox rootPane = new VBox();
        HBox hbTekst = new HBox();
        GridPane rutenett = new GridPane();

        Button pluss = new Button("+");
        Button minus = new Button("-");
        Button multiplikasjon = new Button("x");
        Button divisjon = new Button("/");  
      
      
        pluss.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent event) {

			int minSum = (Integer.parseInt(x.getText())) + Integer.parseInt(y.getText());

            String tekst = "" + minSum;
            output.setText(tekst);
            
          }
        });
        minus.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent event) {
            int minSum = (Integer.parseInt(x.getText())) - Integer.parseInt(y.getText());
			
            String tekst = "" + minSum;
            output.setText(tekst);
            
          }
        }); 
      
      multiplikasjon.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent event) {
            int minSum = (Integer.parseInt(x.getText())) * Integer.parseInt(y.getText());
            String tekst = "" + minSum;
            output.setText(tekst);
            
          }
        });
            
        divisjon.setOnAction(new EventHandler<ActionEvent>() {
          @Override
          public void handle(ActionEvent event) {
            int minSum = (Integer.parseInt(x.getText())) / Integer.parseInt(y.getText());
            String tekst = "" + minSum;
            output.setText(tekst);
            
          }
        });

          
        hbTekst.getChildren().addAll(x,y);
        rutenett.add(pluss, 0, 0);
        rutenett.add(minus, 1, 0);
        rutenett.add(multiplikasjon, 0, 1);
        rutenett.add(divisjon, 1, 1);
      
        rootPane.getChildren().addAll(hbTekst, rutenett, output);
          
        Scene scene = new Scene(rootPane);
        stage.setScene(scene);
        stage.show();
        
    }
   public static void main(String[] args) {
    Application.launch(args);
  }
}