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11th Computer Science Monthly Test - 3 ( Polymorphism )

MABS Institution

11th Computer Science Monthly Test - 3 ( Polymorphism )-Aug 2020

Time : 2.00 Hours

Part - A

Multiple Choice Question - Answer All Question

Which of the following operator is by default overloaded by the compiler?

*
+
+=
==

Which of the following function(s) combination
cannot be considered as
overloaded function(s) in the given snippet?
void print(char A, int B); //Fl
void printprint(int A; float B); //F2
void Print(int P=10);//F3
void prtntt); //F4

F1,F2,F3,F4
F1,F2,F3
F1,F2,F4
F1,F3,F4

____________ cannot have default arguments

Operator overloading
Overloaded operators
Function overloading
prototype

#include< iostream >
using namespace std;
class Point {
private:
int x, y;
public:
point(int x1,int y1)
{
x=x1;y=y1;
}
void operator+(Point&pt3);
void showO {cout << "x=" << x << " ,y=" << y;}
};
void Point::operator+(point &pt3)
{
x + =pt3.x;
y+=pt3.y;
}
int main ()
{
point ptl(3,2),pt2(5,4);
pt1+pt2;
pt1.show ();
return 0;
}
Which ofthe following operator is overloaded?

+
operator
::
=

Which of the following statement is true or false?
(i) Overloading function refers to a functions having more than one distinct meaning
(ii) The number and types of a function parameters are called overloaded signature

i-true, ii-true
i-true, ii-false
i-false, ii-false
i-false, ii-true

The return type of overloaded functions are not considered for overloading same ___________.

polymorphism
prototype
data type
overloading

Which of the following provides flexibility of creating multiple type of objects for a class?

function overloading
operator overloading
constructor overloading
object overloading

Which of the following statement is true or false?
(i) A function's argument list is known as a function signature
(ii) objects cannot be overloaded
(iii) Keyword 'operator' used to define the overloaded operator
(iv) ?:, :: cannot be overloaded

i-true, ii-false, iii-true, iv-true
i-false, ii-true, iii-false, iv-false
i-false, ii-false, iii-jrue, iv-true
i-true, ii-false, iii-false, iv-true

the overloaded operator is given using the keyword ________ followed by an operator symbol

operator
data type
object
function

Which of the following can have more than one constructor with different signature?

Methods
class
object
Attribute

#include< iostream >
using namespace std;
class Point {
private:
int x, y;
public:
point(int x1,int y1)
{
x=x1;y=y1;
}
void operator+(Point&pt3);
void showO {cout << "x=" << x << " ,y=" << y;}
};
void Point::operator+(point &pt3)
{
x + =pt3.x;
y+=pt3.y;
}
int main ()
{
point ptl(3,2),pt2(5,4);
pt1+pt2;
pt1.show ();
return 0;
}
Which of the following statement invoke operator overloading?

pt1+pt2
Pointpt1(3,2),pt2(5,4)
pt1.showt);
return 0;

The process of selecting the most appropriate overloaded function or operator is called

overloaded function
function's signature
function's prototype
overload resolution

#include< iostream >
using namespace std;
class Point {
private:
int x, y;
public:
point(int x1,int y1)
{
x=x1;y=y1;
}
void operator+(Point&pt3);
void showO {cout << "x=" << x << " ,y=" << y;}
};
void Point::operator+(point &pt3)
{
x + =pt3.x;
y+=pt3.y;
}
int main ()
{
point ptl(3,2),pt2(5,4);
pt1+pt2;
pt1.show ();
return 0;
}
What is the output for the above program?

x=8,y=6
x=14,y=:14
x = 8, y =6
= x =5, y = 9

Which of the following operator cannot be overloaded?

?:
::
.
==

In which of the following functions in the same scope that share the same name but their parameters are different?

function overloading
operator overloading
data overloading
Data hiding

The number and types of a function's parameter are called

overload resolution
overloaded function
function's signature
function's prototype

Which of the following is not true with respect to function overloading?

The overloaded functions must differ in their signature
The return type is also considered for overloading a function.
The default arguments of overladed functions are not considered for Overloading
Destructor function cannot be overloaded

The number and types of a function's parameters are called the_________.

overload resolution
function's signature
function overloading
operator overloading

Which of the following is the ability of a message to be displayed in more than one form?

Polymorphism
Encapsulation
Abstraction
Inheritance

Which of the following refers to a function having more than one distinct meaning?

Function Overloading
Member overloading
Operator overloading
Operations overloading

How will you invoke the function dispchar() for the following input?
To print Dollar for 10 times

void dispchar(char ch='$';int size=10)
{
for(int i=1;i < = size;i++)
cout << ch
}

dispchar ();
dispchar( ch,size);
dispchar($,10);
dispchar('$',10 times);

Which of the following statement is true or false?
(i) Polymorphism means many shapes
(ii) Polymorphism is acheived through overloading
(iii) Overloading means a name having only one distinct meaning
(iv) Overload resolution means not' selecting appropriate overloaded function

i-true, ii-true, iii-false, iv-false
i-true, ii-false, iii-true, iv-false
i-false, ii-false, iii-true, iv-true
i-false, ii-true, iii-true, iv-false

Part - B

Generic 3 - Answer All Question

How does a compiler decide as to which function should be invoked when there are many functions? Give an example.

class sale ( int cost, discount ;public: sale(sale &); Write a non inline definition for constructor specified;

Write a short note on operator overloading.

What are the rules for function overloading?

What is the output of the following program:
#inclue
using namespace std;
void print(int i)
{cout << " it is Integer" << l << endl;}
void print(double f)
{cout << '' It is fioat" << f << endl;}
void print(string c)
{cout << '' it is string'' << c << endl;}
int main 0 {
print(10);
print(10.10);
print("Ten ");
return 0;
}

Discuss the benefit of constructor overloading?

Part - C

Generic 5 - Answer All Question

Write the output of the following program
include < iostream >
using namespace std;
class Seminar
{
int Time;
public:
Seminar()
{
Time=30;cout << "Seminar starts now"< }
void Lecture()
{
cout << "Lectures in the seminar on"< }
Seminar(int Duration)
{
Time=Duration;cout << "Welcome to Seminar "< }
Seminar(Seminar &D)
{
Time=D.Time;cout << "Recap of Previous Seminar Content "< }
~Seminar()
{
cout << "Vote of thanks"< }
};
int main()
{
Seminar s1,s2(2),s3(s2);
s1.Lecture();
return 0;
}

#include< iostream >
using namespace std;
class add
{
int num 1, num2, sum;
public:
add()
{
cout << "\n Constructor without parameters ..";
num1=0;
num2=0;
sum =0:
}
add (int s1, int s2)
{
cout << "\nParameterized constructor ..";
num1 = s1;
num2=s2;
sum=0;
}
add (add &a)
{
cout << "\n Copy Constructor ...";
num1 = a.num1;
num2 = a.num2;
sum=0;
}
void getdatat)
{
cout<<"\nEnter data ...";
cin>>num1 >>num2;
}
void addition()
{
sum=num 1+num2;
}
void putdata()
{
cout << "\n The numbers are ..";
cout << num1<< '\t' << nurn2;
cout << "\n The sum of the numbers are .." << sum;
};
int main()
{
add a, b(10,20), c(b);
a.getdata();
a.addition();
b.addition();
c.addition();
cout << "\n Object a:";
a.putdata();
cout << "\n Obect b:";
a.putdata();
cout << "\n Obect c..";
c.putdata();
return 0;
}

Write the output of the following program.
// constructor declared as outline member function
#include< iostream >
using namespace std;
class Perimeter
{
int 1, b, p;
public;
Perimeter 0;
Perimeter (int);
Perimeter (int,int);
Perimeter (Perimeter&);
void Calculate();
};
Perimeter:: Perimeter()
{
cout << "\n Enter the value of length and breath";
cin >> I >> b;
cout<<"\n \nN onParameterized constructor";
}
Perimeter::Perimeter(int a)
{
I=b=a;
cout << "\n\n Parameterized constructor. with one
argument";
}
Perimeter::Perimeter(int 11, in b1)
{
cout << "\n\n Parameterized constructor with 2 argument";
1=11;
b=b1;
}
Perimeter: :Perimeter(perimeter &p)
{
1=p.1;
b=p.b;
cout << "\n \n copy constructor";
}
void Perimeter ::CalculateO{
p = 2*(1+b);
cout<<p;
}
int main ()
{
Perimeter Obj;
cout << "\n perimeter of rectangle is";
Obj.Calculate 0;
Perimeter Obj 1(2);
cout << "\n perimeter of rectangle";
Obj lCalculatet);
Perimeter Obj2 (2,3);
cout << "\n perimeter of rectangle";
Objz.Calculatet);
perimeter obj3 (Obj2);
cout << "\n perimeter of rectangle";
obj3.CalculateO;
return 0;
}

Write a c++ program to find Addition and Subtraction of complex number using operator overloading.

What are the rules for operator overloading?

Write a program to find the area of a rectangle using constructor overloading in a class.

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