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Shared
properties are represented by static class
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members.
Static class members can be either static data
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members
or static member functions. These members
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can
be declared in either the public, protected, or private
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sections
of a class interface.
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When
a member function is declared as static, we are
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not
limited to using this function through an object of
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that
class. This function can be used anywhere it is legal
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to
use the class itself. This is because static member
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functions
are invoked independent of the objects and do
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not
contain a this pointer.
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It can be called via: class::function(args)
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