CS304P Final Term General Quiz 3 July 2023 by Miss Mehwish

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Q1. Which of the following operator overloading declaration can be used for pre-increment operators implemented as a member function of the class Complex?

1. Complex & operator ++ ();
2. Complex & Complex::operator++();
3. None of the given options
4. Complex && operator ++ ();

Correct option: B) Complex & Complex::operator++(); Complex & Complex::operator++();

Q2. A class that defines the cin and stream extraction operator is called:

1. kstream
2. kstreamfstream
3. ostream
4. istream

Correct option: d) istream

Q3. While operator overloading, the binary operator is always called with reference to the ____________.

1. Left-hand argument
2. Right-hand argument
3. Pointer argument
4. Dot operator

Correct option: a) Left-hand argument

4. Consider the following program, and choose the most appropriate concept implemented in the following program:

```cpp

public: void findArea() {};

class triangle: public shape { public: void findArea() {};

class circle: public shape { public: void findArea() {};

int main() { triangle t; t.findArea(); circle c; c.findArea();

a) Aggregation

Q6. Consider the following statement. What is the best statement about this line of code: `char & operator()(int);`

1. Overloading of int operator
2. Overloading of & operator
3. Overloading of char operator
4. Overloading of () operator

Correct option: d) Overloading of () operator

Q7. Suppose c1, c2, and c3 are objects of the Complex class, and we overloaded the + operator. `c3 = c1 + c2;` In this statement, which object will be passed as an argument when the + operator is called?

1. c1
2. c2
3. c1 and c2
4. c3

Correct option: c) c1 and c2

Q8. Which one is the best description of polymorphism?

1. None of the given option
2. It is the ability for undefined message/data to be processed in at least one way
3. It is the ability for many messages/data to be processed in many ways
4. It is the ability for a message/data to be processed in more than one form

Correct option: d) It is the ability for a message/data to be processed in more than one form