<a href="#Assignability">assignable</a> to the parameter types of
<code>F</code> and are evaluated before the function is called.
The type of the expression is the result type
of <code>F</code>.
A method invocation is similar but the method itself
is specified as a selector upon a value of the receiver type for
the method.
</p>

<pre>
math.Atan2(x, y)  // function call
var pt *Point

durban

// dvag : 2014-06-23 Deutsche Vermögensberatung Aktiengesellschaft DVAG
dvag

// dvr : 2016-05-26 DISH Technologies L.L.C.
dvr

// earth : 2014-12-04 Interlink Systems Innovation Institute K.K.
earth

// eat : 2014-01-23 Charleston Road Registry Inc.
eat

// eco : 2016-07-08 Big Room Inc.
eco

// edeka : 2014-12-18 EDEKA Verband kaufmännischer Genossenschaften e.V.

 * username for example:
 * <tt>
 * String username = f.getPrincipal().getName();
 * </tt>
 * The <tt>Principal</tt> object returned will never be <tt>null</tt>
 * however the username can be <tt>null</tt> indication anonymous
 * credentials were used (e.g. some IPC$ services).
 */

    public Principal getPrincipal() {
        return auth;
    }

/**

letter, nearly as large as himself, and this he handed over to
the other, saying, in a solemn tone, `For the Duchess.  An
invitation from the Queen to play croquet.'  The Frog-Footman
repeated, in the same solemn tone, only changing the order of the
words a little, `From the Queen.  An invitation for the Duchess
to play croquet.'

  Then they both bowed low, and their curls got entangled
together.