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31. To overload a prefix ++ for a Number class, an appropriate function header is
Number & Number:: operator ++ (Number & num)
Number & Number:: operator (int)++
Number & Number :: operator ++ (int)
This Number: : operator ++ (Number & num)
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32. The « operator is used for output only when
it is used as a binary operator
it is used as a unary operator
cout is to the left
you write a function to overload it.
33. Object-oriented programmers primarily focus on
procedures to be performed
step-by-step statements needed to solve a problem
objects and the tasks that must be performed with those objects
physical orientation of objects within a program.
34. If « operator has been overloaded appropriately for the class Number, and a and b are members of the Numbers class, then which statement is legal?
count << a
count << a << b
Both (a) and (b)
None of these
35. Using an overloaded « operator for a class
is the only way to display values of data members of a class
works correctly only if all data members are private
allows output statements within a program that uses the class to become simpler
is possible only if the »operator is overloaded as well.
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