Preferences: systemRoot() : Preferences « java.util.prefs « Java by API

1. Java by API
2. java.util.prefs
3. Preferences

Preferences: systemRoot()

 



import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {
    // System preference nodes

    // Use a Class
    Preferences prefs = Preferences.systemNodeForPackage(java.lang.String.class);

    // Use an absolute path
    prefs = Preferences.systemRoot().node("/java/lang/String");

    // Use a relative path
    prefs = Preferences.systemRoot().node("/javax/swing");
    prefs = prefs.node("text/html");

    // User preference nodes

    // Use a class
    prefs = Preferences.userNodeForPackage(Main.class);

    // Use an absolute path
    prefs = Preferences.userRoot().node("/com/mycompany");

    // Use a relative path
    prefs = Preferences.userRoot().node("/javax/swing");
    prefs = prefs.node("text/html");
  }
}

   
  

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