Creates a URL object from the specified protocol, host, port number, file, and handler. Specifying a port number of -1 indicates that the URL should use the default port for the protocol. Specifying a handler of null indicates that the URL should use a default stream handler for the protocol, as outlined for: java.net.URL#URL(java.lang.String, java.lang.String, int, java.lang.String)

If the handler is not null and there is a security manager, the security manager's checkPermission method is called with a NetPermission("specifyStreamHandler") permission. This may result in a SecurityException. No validation of the inputs is performed by this constructor.

Parameters:

protocol     the name of the protocol to use.

host     the name of the host.

port     the port number on the host.

file     the file on the host

handler     the stream handler for the URL.

Exceptions:

MalformedURLException if an unknown protocol is specified.

SecurityException if a security manager exists and its checkPermission method doesn't allow specifying a stream handler explicitly.

`protocol`		the name of the protocol to use.
`host`		the name of the host.
`port`		the port number on the host.
`file`		the file on the host
`handler`		the stream handler for the URL.

`MalformedURLException`		if an unknown protocol is specified.
`SecurityException`		if a security manager exists and its `checkPermission` method doesn't allow specifying a stream handler explicitly.