How to add BASIC Authentication into HttpURLConnection?

--
Here is one sample.

...
    try {
      //Create connection
      url = new URL(targetURL);
      connection = (HttpURLConnection)url.openConnection();
      connection.setRequestMethod("POST");
      ...
      BASE64Encoder enc = new sun.misc.BASE64Encoder();
      String userpassword = username + ":" + password;
      String encodedAuthorization = enc.encode( userpassword.getBytes() );
      connection.setRequestProperty("Authorization", "Basic "+
            encodedAuthorization);
      ...
      //Send post data
      ...

    } catch (Exception e) {
      ...
    } finally {

      if(connection != null) {
        connection.disconnect(); 
      }
    }
  }