Various ways to construct URL using java.net.URL - http://www.devx.com/tips/Tip/33824?trk=DXRSS_JAVA

URL vs. URI vs. URN: The Confusion Continues - http://www.damnhandy.com/2011/01/18/url-vs-uri-vs-urn-the-confusion-continues/ http://java67.blogspot.com.au/2013/01/difference-between-url-uri-and-urn.html