CS304 VU Midterm Current Papers Fall 2011 of Virtual University of Paksitan (www.vusolutions.com)
Sunday, December 04, 2011 Posted In .Midterm Nov Fall 2011 Edit ThisCS304 VU Midterm Current Papers Fall 2011 of Virtual University of Paksitan (www.vusolutions.com)
Question No: 21 ( Marks: 2 )
Write down C++ code for unary operator overloading.
Question No: 22 ( Marks: 2 )
Friend functions increase 'Programming bugs'. What is your opinion?
Question No: 23 ( Marks: 3 )
Explain overloading?
Question No: 24 ( Marks: 3 )
Give c++ code to overload unary '-- ' operator for complex numbers class.
Question No: 25 ( Marks: 5 )
Write down the out put of the following code:
class Student{ …
public:
static int noOfStudents; Student();
~Student();
…
};
int Student::noOfStudents = 0; Student::Student(){
noOfStudents++;
}
::~Student(){
noOfStudents--; }
int Student::noOfStudents = 0;
int main(){
cout <
cout <
Student studentB;
cout <
}
Question No: 26 ( Marks: 5 )
What are Accessor Functions, Explain with an example.
Question No: 1 ( Marks: 1 ) - Please choose one
Suppose that the Test class does not have an overloaded assignment operator. What happens when an assignment a=b; is given
for two Test objects a and b?
► The automatic assignment operator is used
► The copy constructor is used
► Compiler error
► Run-time error
Question No: 2 ( Marks: 1 ) - Please choose one
a'A static member function can be called, even when a class is not __________.
► Declared
► Define
► Instantiated
► Called
Question No: 3 ( Marks: 1 ) - Please choose one
Identify which of the following overloaded operator function's declaration is appropriate for the given call?
Rational_number_1 + 2.325
Where Rational_number_1 is an object of user defined class Rational_number.
► Rational_number operator+( Rational_number & obj);
► Rational_number operator+(double& obj);
► Rational_number operator+(Rational_number &obj, double& num);
► operator+(double& obj);
Question No: 4 ( Marks: 1 ) - Please choose one
What problem(s) may occur when we copy objects without using deep copy constructor?
► Dangling pointer
► Memory Leakage
► All of the given
► System crash
Question No: 5 ( Marks: 1 ) - Please choose one
__________ provide the facility to access the data member.
► accesser function
► private function
► inline function
► None of the given
Question No: 6 ( Marks: 1 ) - Please choose one
Constant objects cannot change their state,
► True
► False
Question No: 7 ( Marks: 1 ) - Please choose one
The ________ relationship indicates that an object contains other objects.
► None of given
► 'has-a'
► 'is-a'
► 'be-
Question No: 8 ( Marks: 1 ) - Please choose one
Which one of the following features of OOP is used to derive a class from another?
► Encapsulation
► Polymorphism
► Data hiding
► Inheritance
Question No: 9 ( Marks: 1 ) - Please choose one
_______ is a relationship
► Inheritance
► Polymarphism
► abstraction
► encapsulation
Question No: 10 ( Marks: 1 ) - Please choose one
__________ satisfy the condition of polymorphism
► Carbon
► Diamond
► Coal
► all of the given
Question No: 11 ( Marks: 1 ) - Please choose one
A generalization-specialization relation between classes are implemented using
► data hiding
► friend classes
► encapsulation
► inheritance
Question No: 12 ( Marks: 1 ) - Please choose one
The >= operator can be overloaded.
► True
► False
Question No: 13 ( Marks: 1 ) - Please choose one
In order to free the memory occupied by the object, we use -------------
► Constructor
► Destructor
► Shallow Copy
► Deep Copy
Question No: 14 ( Marks: 1 ) - Please choose one
Which of the following is not an example of multiple inheritances?----------
► Mermaid
► Woman
► None of the given
► Amphibious Vehicle
Question No: 15 ( Marks: 1 ) - Please choose one
Static variable can be initialized more than once.
► True
► False
Question No: 16 ( Marks: 1 ) - Please choose one
A generic class showing all the common attributes and a behavior of other classes represents a very important feature in oop
called --------
► Inheritance
► Encapsulation
► Polymarphism
► Abstraction
