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

public class Oblig7tips {

    public static void main(String[] args) {
        JFrame vindu = new JFrame("Kalkulator");
        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        JPanel panel = new JPanel(); 
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        vindu.add(panel);

        JLabel tekst = new JLabel("Tekst øverst");
        panel.add(tekst);

        JPanel knapper = new JPanel();
        panel.add(knapper);
        knapper.setLayout(new GridLayout(1,4));
        knapper.add(new JButton("<"));
        knapper.add(new JButton(">"));
        knapper.add(new JButton("Opp"));
        knapper.add(new JButton("Ned"));

        JPanel rutenett = new JPanel();
        panel.add(rutenett);
        rutenett.setLayout(new GridLayout(10,10));

        for (int i = 0; i<100; i++){
            rutenett.add(new JLabel(""+i));
        }


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

}