Removing a Preference from a Preference Node : Preference « Development « Java Tutorial

1. Java Tutorial
2. Development
3. Preference

import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {
    // Get the user preference node for java.lang
    Preferences prefs = Preferences.userNodeForPackage(String.class);

    // Remove a preference in the node
    final String PREF_NAME = "name_of_preference";
    prefs.remove(PREF_NAME);

    // Remove all preferences in the node

    prefs.clear();

  }
}