Preferences: exportSubtree(OutputStream os) : Preferences « java.util.prefs « Java by API

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

Preferences: exportSubtree(OutputStream os)

   

import java.io.FileOutputStream;
import java.util.prefs.Preferences;

public class Main {
  public static void main(String args[]) throws Exception {
    Preferences prefsRoot = Preferences.userRoot();
    Preferences myPrefs = prefsRoot.node("PreferenceExample");

    myPrefs.put("A", "a");
    myPrefs.put("B", "b");
    myPrefs.put("C", "c");

    FileOutputStream fos = new FileOutputStream("prefs.xml");

    myPrefs.exportSubtree(fos);
    fos.close();

  }
}

   
    
    
  

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