Java tutorial
import java.util.prefs.Preferences; public class Main { public static void main(String[] argv) throws Exception { Preferences prefs = Preferences.userNodeForPackage(java.lang.String.class); Preferences node = prefs.parent(); // /java node = node.parent(); // null String[] names = null; names = prefs.childrenNames(); for (int i = 0; i < names.length; i++) { node = prefs.node(names[i]); } } }