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

public class MainWindow extends JFrame {

    private JPanel panel1;
    private JButton addNewImageButton;
    private JButton changeExistImageButton;
    private JButton deleteExistImageButton;
    private JButton addExistImageButton;
    private JButton makeBackupButton;
    private JButton loadBackupButton;
    private JButton launchTomcatButton;
    private JButton stopTomcatButton;
    private JList list1;
    private JList list2;

    public MainWindow() {
        super("OSLoader (development version)");

        panel1 = new JPanel();
        panel1.setLayout(new GridLayout(2, 2));
        stopTomcatButton = new JButton("click");
        panel1.add(stopTomcatButton);
        setContentPane(panel1);

        setSize(550, 350);
        setVisible(true);
    }

    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
        } catch (UnsupportedLookAndFeelException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        new MainWindow();
    }
}