Getting the Roots of the Preference Trees

     

import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {

    // Get the system root
    Preferences prefs = Preferences.systemRoot();

    // Get the user root
    prefs = Preferences.userRoot();

    // The name of a root is ""
    String name = prefs.name();

    // The parent of a root is null
    Preferences parent = prefs.parent();

    // The absolute path of a root is "/"
    String path = prefs.absolutePath();
  }
}

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Getting the Roots of the Preference Trees : Preference Properties « Development Class « Java

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