Removing a Preference Node : Preference Properties « Development Class « Java

1. Java
2. Development Class
3. Preference Properties

Removing a Preference Node

     

import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {
    boolean exists = Preferences.userRoot().nodeExists("/yourValue"); // false
    if (!exists) {
      Preferences prefs = Preferences.userRoot().node("/yourValue");
      prefs.removeNode();
      // prefs.removeNode();
    }
    Preferences prefs = Preferences.userRoot().node("/yourValue/child");
    exists = Preferences.userRoot().nodeExists("/yourValue"); // true
    exists = Preferences.userRoot().nodeExists("/yourValue/child"); // true

    Preferences.userRoot().node("/yourValue").removeNode();

    exists = Preferences.userRoot().nodeExists("/yourValue"); // false
    exists = Preferences.userRoot().nodeExists("/yourValue/child"); // false
  }
}

   
    
    
    
    
  

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