Programming lab

STUDENT’S DETAILS: TEACHER’S DETAILS:

Name: PUNIT KUMAR Name: Mr. B.P Singh
Course: B-TECH/CST
Enrollment No: 00527912722
S.N CONTENT SIGNA
PAG
O TURE
E
No.
1. Write a program in c++ to
find the area and perimeter of
a rectangle.
2. Write a program in c++ to
calculate the square of a
number using math.h header
file
3. Write a program in c++ to
find that a no. is even or odd.
4. Write a program in c++ to
find greater no. between two
no.
5. Write a program in c++ to
display the square series
using loop.
6. Write a program in c++ to
display reverse natural series
using loop.
7. Write a program in c++ to
calculate the factorial of a
given number.
8. Write a program in c++ to
display call by value function.
9. Write a program in c++ to
display function overloading
10. Write a program in c++ to
display the class.
11. Write a program in c++ to
display a class using scope
resolution operator.
12. Write a program in c++
display constructor and
destructor.
13. Write a program in c++ to
INDEX
PROGRAM.1
#include<iostream>
using namespace std;

int areaRectangle(int a, int b)

{
int area = a * b;
return area;
}
int perimeterRectangle(int a, int b)
{
int perimeter = 2*(a + b);
return perimeter;
}
int main()
{
int a = 5;
int b = 6;
cout << "Area = " <<
areaRectangle(a, b) <<
endl;
cout << "Perimeter = " <<
perimeterRectangle(a, b);
return 0;
}
OUTPUT.1

Area = 30
Perimeter = 22
PROGRAM.2
#include <iostream>
#include <cmath>

int main() {
double number, square;

std::cout << "Enter a number: ";

std::cin >> number;

square = pow(number, 2);

std::cout << "The square of " << number << " is: " << square << std::endl;

return 0;
}
OUTPUT.2

Enter a number: 5
The square of 5 is: 25
PROGRAM.3

#include <iostream>
using namespace std;

int main() {
int n;

cout << "Enter an integer: ";

cin >> n;

if ( n % 2 == 0)
cout << n << " is even.";
else
cout << n << " is odd.";

return 0;
}
OUTPUT.3

Enter an integer: 4
4 is even.
PROGRAM.4
#include <iostream>

int main() {
double num1, num2;
std::cout << "Enter the first number: ";
std::cin >> num1;

std::cout << "Enter the second number: ";

std::cin >> num2;

if (num1 > num2) {

std::cout << num1 << " is the largest number." << std::endl;
} else if (num2 > num1) {
std::cout << num2 << " is the largest number." << std::endl;
} else {
std::cout << "Both numbers are equal." << std::endl;
}

return 0;
}
OUTPUT.4

Enter the first number: 50

Enter the second number: 20
50 is the largest number.
PROGRAM.5
#include <iostream>

int main() {

int n;

std::cout << "Enter the number of terms in the square series: ";
std::cin >> n;

std::cout << "Square Series:" << std::endl;

for (int i = 1; i <= n; ++i) {
std::cout << i * i << " ";
}

std::cout << std::endl;

return 0;
}
OUTPUT.5

Enter the number of terms in the square series: 9

Square Series:
1 4 9 16 25 36 49 64 81
PROGRAM.6
#include<iostream>

using namespace std;

int main()

int number;

cout << "\nPlease Enter Maximum Value to print Natural Numbers = ";

cin >> number;

cout << "\nList of Natural Numbers from " << number << " to 1 are\n";

for(int i = number; i >= 1; i--)

cout << i <<" ";

return 0;

}
OUTPUT.6

Please Enter Maximum Value to print Natural Numbers

= 10

List of Natural Numbers from 10 to 1 are

10 9 8 7 6 5 4 3 2 1
PROGRAM.7

#include <iostream>

using namespace std;

int main() {

int n;

long factorial = 1.0;

cout << "Enter a positive integer: ";

cin >> n;

if (n < 0)

cout << "Error! Factorial of a negative number doesn't exist.";

else {

for(int i = 1; i <= n; ++i) {

factorial *= i;

cout << "Factorial of " << n << " = " << factorial;

return 0;

}
OUTPUT.7

Enter a positive integer: 5

Factorial of 5 = 120
PROGRAM.8
#include <iostream>

using namespace std;

void swap(int x, int y){

int t = x;

x = y;

y = t;

cout << "After Swapping in function x: " << x

<< ", y: " << y << endl;

int main(){

int x = 1, y = 2;

cout << "Before Swapping: ";

cout << "x: " << x << ", y: " << y << endl;

swap(x, y);

cout << "After Swapping: ";

cout << "x: " << x << ", y: " << y << endl;

return 0;

}
OUTPUT.8

Before Swapping: x: 1, y: 2

After Swapping in function x: 2, y: 1

After Swapping: x: 1, y: 2
PROGRAM.9

#include <iostream>

using namespace std;

float absolute(float var){

if (var < 0.0)

var = -var;

return var;

int absolute(int var) {

if (var < 0)

var = -var;

return var;

int main() {

cout << "Absolute value of -5 = " << absolute(-5) << endl;

cout << "Absolute value of 5.5 = " << absolute(5.5f) << endl;

return 0;

}
OUTPUT.9

Absolute value of -5 = 5

Absolute value of 5.5 = 5.5

PROGRAM.10

#include <iostream>

using namespace std;

class Room {

public:

double length;

double breadth;

double height;

double calculateArea() {

return length * breadth;

double calculateVolume() {

return length * breadth * height;

}
};

int main() {

Room room1;

room1.length = 42.5;

room1.breadth = 30.8;

room1.height = 19.2;

cout << "Area of Room = " << room1.calculateArea() << endl;

cout << "Volume of Room = " << room1.calculateVolume() << endl;

return 0;

}
OUTPUT.10

Area of Room = 1309

Volume of Room = 25132.8

PROGRAM.11

#include <iostream>

using namespace std;

class Operate

public:

void fun();

};

void Operate::fun() /* return_type Class_Name::function_name */

cout << " It is the member function of the class. ";

int main ()

Operate op;

op.fun();

return 0;

}
OUTPUT.11

It is the member function of the class.

PROGRAM.12

#include <iostream>

using namespace std;

class Line {

public:

void setLength( double len );

double getLength( void );

Line(); // This is the constructor declaration

~Line(); // This is the destructor: declaration

private:

double length;

};

Line::Line(void) {

cout << "Object is being created" << endl;

Line::~Line(void) {

cout << "Object is being deleted" << endl;

}

void Line::setLength( double len ) {

length = len;

double Line::getLength( void ) {

return length;

int main() {

Line line;

line.setLength(6.0);

cout << "Length of line : " << line.getLength() <<endl;

return 0;

OUTPUT.12
Object is being created

Length of line : 6

Object is being deleted

PROGRAM.13
#include <iostream>

using namespace std;

class Count {

private:

int value;

public:

Count() : value(5) {}

void operator ++ () {

++value;

void operator ++ (int) {

value++;

}
void display() {

cout << "Count: " << value << endl;

};

int main() {

Count count1;

count1++;

count1.display();

++count1;

count1.display();

return 0;

OUTPUT.13
Count: 6

Count: 7

PROGRAM.14
#include <iostream>

using namespace std;

class Animal {

public:

void eat() {

cout << "I can eat!" << endl;

void sleep() {

cout << "I can sleep!" << endl;

};

class Dog : public Animal {

public:

void bark() {
cout << "I can bark! Woof woof!!" << endl;

};

int main() {

Dog dog1;

dog1.eat();

dog1.sleep();

dog1.bark();

return 0;

OUTPUT.14
I can eat!

I can sleep!

I can bark! Woof woof!!

PROGRAM.15
#include <iostream>

using namespace std;

class A {

protected:

int a;

public:

void get_a(int n) {

a = n;

};

class B {

protected:

int b;

public:

void get_b(int n) {

b = n;

};

class C : public A,public B

{

public:

void display()

std::cout << "The value of a is : " <<a<< std::endl;

std::cout << "The value of b is : " <<b<< std::endl;

cout<<"Addition of a and b is : "<<a+b;

};

int main()

C c;

c.get_a(10);

c.get_b(20);

c.display();

return 0;

OUTPUT.15
The value of a is : 10

The value of b is : 20

Addition of a and b is : 30

PROGRAM.16
#include <iostream>

using namespace std;

class Base {

public:

virtual void print() {

cout << "Base Function" << endl;

}};

class Derived : public Base {

public:

void print() {

cout << "Derived Function" << endl;

}};

int main() {

Derived derived1;

Base* base1 = &derived1;

base1->print();

return 0;

OUTPUT.16
Derived Function

PROGRAM.17
#include<iostream>

#include<fstream>

using namespace std;

main()

int rno,fee;

char name[50];

cout<<"Enter the Roll Number:";

cin>>rno;

cout<<"\nEnter the Name:";

cin>>name;

cout<<"\nEnter the Fee:";

cin>>fee;

ofstream fout("d:/student.doc");
fout<<rno<<"\t"<<name<<"\t"<<fee; //write data to the file student

fout.close();

ifstream fin("d:/student.doc");

fin>>rno>>name>>fee; //read data from the file student

fin.close();

cout<<endl<<rno<<"\t"<<name<<"\t"<<fee;

return 0;

OUTPUT.17
Enter the Roll Number:23

Enter the Name:mayank

Enter the Fee:90000

23 mayank 90000

PROGRAM.18
#include <iostream>

using namespace std;

template <typename T> T myMax(T x, T y)

return (x > y) ? x : y;

int main()

// Call myMax for int

cout << myMax<int>(3, 7) << endl;

// call myMax for double

cout << myMax<double>(3.0, 7.0) << endl;

// call myMax for char

cout << myMax<char>('g', 'e') << endl;

return 0;

OUTPUT.18
7

PROGRAM.19
#include <iostream>

using namespace std;

int sum(int num1, int num2) {

return num1 + num2;

double sum(double num1, double num2) {

return num1 + num2;

int sum(int num1, int num2, int num3) {

return num1 + num2 + num3;

int main() {

cout << "Sum 1 = " << sum(5, 6) << endl;

cout << "Sum 2 = " << sum(5.5, 6.6) << endl;

cout << "Sum 3 = " << sum(5, 6, 7) << endl;

return 0;

OUTPUT.19
Sum 1 = 11

Sum 2 = 12.1

Sum 3 = 18