import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


class Uke15 {

  static int xDimensjon = 200;
  static int yDimensjon = 100;
  static JLabel teller = new JLabel("0", SwingConstants.CENTER);

  // opprett en del knapper
  // i et MxN rutenett, i dette tilfellet 3 x 5
  // ha en felles teller som teller hvor mange ganger knappene har blitt trykket

  public static void main(String[] args) {
    JFrame vindu = new JFrame("Uke 15 GUI program");
    vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel panel = new JPanel();
    vindu.add(panel);

    //panel.setLayout(new GridLayout(5, 1));
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
    JPanel tellerSubpanel = new JPanel();

    tellerSubpanel.setPreferredSize(new Dimension(xDimensjon, yDimensjon));
    tellerSubpanel.setBorder(BorderFactory.createLineBorder(Color.BLACK));
    teller.setFont(new Font("times new roman", Font.CENTER_BASELINE, 60));
    tellerSubpanel.add(teller);
    panel.add(tellerSubpanel);



    int knappIndeks = 0;
    for (int i = 0; i < 3; i++) {

      JPanel subpanel = new JPanel();
      subpanel.setLayout(new GridLayout(1, 5));

      for (int j = 0; j < 5; j++) {
        TellerKnapp knapp = new TellerKnapp("knapp " + knappIndeks);
        subpanel.add(knapp);
        knappIndeks++;

      }

      panel.add(subpanel);
    }


    vindu.pack();
    vindu.setVisible(true);
  }

  static class TellerKnapp extends JButton {

    public TellerKnapp(String tekst) {
      super(tekst);
      this.setBackground(Color.BLACK);
      this.setForeground(Color.YELLOW);
      this.setPreferredSize(new Dimension(xDimensjon, yDimensjon));
      this.setFont(new Font( "times new roman" , Font.BOLD  , 40 ));
      this.initGUI();
    }

    class OekTeller implements ActionListener {
      @Override
      public void actionPerformed(ActionEvent e) {
        // hent teller sin tekst
        // ?k med 1
        // oppdater teller sin tekst
        int tellerVerdi = Integer.parseInt(teller.getText());
        teller.setText( String.valueOf(tellerVerdi + 1) );
      }
    }

    public void initGUI() {
      this.addActionListener(new OekTeller());
    }
  }
}














//