The example below shows how to use GTKLookAndFeel in Swing applications.
try {
// sure look and feel
UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
// not-so-sure look and feel
System.setProperty("os.name", "Windows");
System.setProperty("os.version", "5.1");
UIManager.setLookAndFeel(
"com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}
catch (Exception ex) {
ex.printStackTrace();
}