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

import java.awt.BorderLayout;
import java.awt.GridLayout;

public class LayoutsEksempler {
    public static void main(String[] args) {
        /* Setter opp vinduet */
        try {
            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) {
            System.exit(1);
        }

        JFrame vindu = new JFrame("Layouts eksempler");
        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

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

        /* Lager 5 knapper */
        JButton b1 = new JButton("1");
        JButton b2 = new JButton("2");
        JButton b3 = new JButton("3");
        JButton b4 = new JButton("4");
        JButton b5 = new JButton("5");

        // /* FLOWLAYOUT: */
        panel.add(b1);
        panel.add(b2);
        panel.add(b3);
        panel.add(b4);
        panel.add(b5);


        /* BORDER LAYOUT */
        panel.setLayout(new BorderLayout());
        panel.add(b1, BorderLayout.NORTH);
        panel.add(b2, BorderLayout.SOUTH);
        panel.add(b3, BorderLayout.EAST);
        panel.add(b4, BorderLayout.CENTER);
        panel.add(b5, BorderLayout.WEST);

        /* GRID LAYOUT */
        int rader = 2;
        int kol = 3;
        panel.setLayout(new GridLayout(rader, kol));
        panel.add(b1);
        panel.add(b2);
        panel.add(b3);
        panel.add(b4);
        panel.add(b5);


        /* Pakker sammen og viser GUI-vinduet */
        vindu.pack();
        vindu.setVisible(true);
    }
    
}