Determining If a Preference Node Contains a Specific Value : Preference « Development « Java Tutorial

1. Java Tutorial
2. Development
3. Preference

import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;

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


  public static String containsValue(Preferences node, String value) {
    try {
      String[] keys = node.keys();

      for (int i = 0; i < keys.length; i++) {
        if (value.equals(node.get(keys[i], null))) {
          return keys[i];
        }
      }
    } catch (BackingStoreException e) {
    }
    return null;
  }
}