Import a file of exported preference data. : BufferedInputStream « File « Java Tutorial

1. Java Tutorial
2. File
3. BufferedInputStream

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.prefs.Preferences;

public class Main {
  public static void main(String[] argv) throws Exception {
    // Create an input stream on a file
    InputStream is = new BufferedInputStream(new FileInputStream("output.xml"));

    // Import preference data

    Preferences.importPreferences(is);
  }
}