Retrieve the preference node using a Class object and saves and retrieves a preference in the node.

     

import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {
    Preferences prefs = Preferences.userNodeForPackage(Main.class);

    final String PREF_NAME = "your_preference";

    String newValue = "a string";
    prefs.put(PREF_NAME, newValue);

    String defaultValue = "default string";
    String propertyValue = prefs.get(PREF_NAME, defaultValue); // "a string"
  }
}

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Retrieve the preference node using a Class object and saves and retrieves a preference in the node. : Preference Properties « Development Class « Java

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