Explanation: In the above program, the class data has two member variables each of integer
and float types respectively. It also has two constructors one with no argument and the other
with float argument. The member function show() displays the contents of the data members.
In function main(), z is an object of class data. When z is created, the constructor with no
argument is called and data members are initialized to zero. When z is initialized to one, the
constructor with float argument is invoked. The integer value ...
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