http://abc.com:8080/test.php

1. public URl (String protocol, String host, int port, String file)
2. public URl (String protocol, String host, String file)
3. public URl (URL Contex String url)
4. public URl (String url)

1. public String getProtocol()
2. public String getHost()
3. public String getPort()
4. public String getFile()
5. public String getQuery() // ?name = "GCES"