The Code - MajickTek/Java-Properties GitHub Wiki

Here is how to load .properties:

import java.util.*;
import java.io.*;
 
public class LoadSample {
  public static void main(String args[]) throws Exception {
    Properties prop = new Properties();
    FileInputStream fis = 
      new FileInputStream("sample.properties");
    prop.load(fis);
    prop.list(System.out);
    System.out.println("\nThe foo property: " +
        prop.getProperty("foo"));
  }
}

And here is how to load .XML:

import java.util.*;
import java.io.*;
 
public class LoadSampleXML {
  public static void main(String args[]) throws Exception {
    Properties prop = new Properties();
    FileInputStream fis =
      new FileInputStream("sampleprops.xml");
    prop.loadFromXML(fis);
    prop.list(System.out);
    System.out.println("\nThe foo property: " +
        prop.getProperty("foo"));
  }
}

Finally, to convert .properties to .xml:

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;

public class PropertiesXMLExample
{
    public static void main(String[] args) throws IOException
    {
    	Properties props = new Properties();
    	props.setProperty("email.support", "[email protected]");

    	//where to store?
    	OutputStream os = new FileOutputStream("c:/email-configuration.xml");

    	//store the properties detail into a pre-defined XML file
    	props.storeToXML(os, "Support Email","UTF-8");

    	System.out.println("Done");
    }
}

P.S.: You can do the opposite (XML to properties) like this:

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class PropertiesXMLExample
{
    public static void main(String[] args) throws IOException
    {
    	Properties props = new Properties();

    	InputStream is = new FileInputStream("c:/email-configuration.xml");
    	//load the xml file into properties format
    	props.loadFromXML(is);

    	String email = props.getProperty("email.support");

    	System.out.println(email);

    }
}