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When
you write multiple constructors, sometimes we like
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to
have the contructors call another function to actually
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get
the work done (to minimize duplication of code)
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In
C++ we do this by writing named member functions
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In
Java we do this by having one constructor call another
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constructor
with a special usage of the this pointer!
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This
can only happen once within a constructor
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It
must be the first thing a constructor does
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list
(int i) { //first constructor which does the real work}
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list
(int i, int j) {this(i); //calls
the constructor with an int }
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