import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.UIManager.LookAndFeelInfo; @SuppressWarnings("serial") public class LookAndFeelDemo extends JFrame implements ActionListener { private static class LookAndFeelApplication { private LookAndFeelInfo lookAndFeelInfo; private LookAndFeelApplication(LookAndFeelInfo lookAndFeelInfo) { this.lookAndFeelInfo = lookAndFeelInfo; } public static LookAndFeelApplication[] getInstalledLookAndFeelApplications(