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36. Which of the following is the best prototype to overload the « operator for a Number class?
ostream & « (ostream & out, const Number &num)
friend ostream & operator« (ostream & out, const Number &num);
Number & operator« (ostream & out, const Number & num);
friend ostream operator« (const. Number &num)
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37. If an = operator is used with classes, then
must have overloaded
may have overloaded
must not have overloaded
equal cannot be used with classes.
38. If subscript operator has been correctly overloaded for a Number class to accept an integer value, and num is a member of the number class, which of the following statements is correct?
[num]44
num[44]
num = [44]
num 44
39. Which of the following statements is true?
Subscript operator may take only one argument.
Parentheses operator may take only one argument
Subscript operator may take
None of these
40. The » operator
may be overloaded for input .
must be overloaded if there will be input to classes
must be overloaded if the « operator is overloaded.
may be overloaded for input, but not for shifting bits.
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