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A
base class constructor is always invoked before a
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derived
class constructor in an inheritance hierarchy.
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| • |
This
means that a derived class' constructor can assume
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that
the base class members have been initialized by the
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time
it is executed.
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The
body of a derived class constructor is executed last
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after
the base class and all indirect base class constructors
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within
the hierarchy have executed.
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But,
when we have a derived class, we are not explicitly
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using
the base class' constructor. Instead, the base class’
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constructor
is implicitly invoked by the derived class
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constructor
that initializes the base class members.
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