Developing multimedia applications with  JMF         T.G.Venkatesh      
21
    MediaLocator and URL
         String  locatorString  = "vfw://0" ;
//creating MediaLocator from locatorString
MediaLocator   ml = new MediaLocator( locatorString );
//creating an URL from locatorString
try{
url = new URL( locatorString );
}catch( MalformedURLException  e ) {
System.out.println (e);
}
// creating MediaLocator from URL
    ml = new MediaLocator( url );