import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
// JFrame
// JPanel
// JButton
// UIManager

class GridEksempel {
    public static void main(String[] args) {
        // 1
        JFrame vindu = new JFrame();
        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        
        try {

            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName()
            );

        } catch (Exception e) {e.printStackTrace();}
        

        // 2
        JPanel panel = new JPanel();

        // 3
        vindu.add(panel);
        lagGridKnapper(panel);

        
        // DET SISTE SOM SKJER
        vindu.pack();
        vindu.setVisible(true);
    }

    static void lagGridKnapper(JPanel panel) {
        String[] teksten = new Tekst().hentTekst();
        int rad = 3; 
        int kol = 3;

        panel.setLayout(new GridLayout(rad,kol));
        int teller = 0;
        for (int i = 0; i < rad; i++) {
            for (int j = 0; j < kol; j++) {
                panel.add(new GridKnapp(""+teller, teksten[teller++]));
            }
        }

    }
}

class GridKnapp extends JButton {
    String label;
    String melding;

    GridKnapp(String label, String melding) {
        super(label);
        this.label = label;
        this.melding = melding;
        initGUI();
    }

    class EndreLabel implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            if (getText().equals(label)) {
                setText(melding);
            } else {
                setText(label);
            }
        }
    }


    // Alt som har med GUI å gjøre
    public void initGUI() {
        addActionListener(new EndreLabel());
    }

}