100+ C++ Programs with Output For Students & Professionals - Aniket Pataskar

8/16/2019 100+ C++ Programs with Output For Students & Professionals - Aniket Pataskar

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C++ 100+ Programs with Output

By Aniket Pataskar

Preface

Copyright 2016 By Author

All rights reserved. No part of this book may be reproduced, stored in a retrieval system,or transmitted in any form or by any means, without the prior written permission of theauthor.

Every effort has been made in the preparation of this book to ensure the accuracy of theinformation presented. However the information contained in this book is sold withoutwarranty, either express or implied. Neither the author, nor distributor will be held liablefor any damages caused or alleged to be caused directly or indirectly by this book.

First Published : Jan 2016

Email : [email protected]

Contact : +91 9423448273

mailto:[email protected]:[email protected]


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Cover image by Aniket Pataskar

About The Author

Aniket O. Pataskar is originally from Aurangabad, India. He is an IT Software engineerwith working experience on Programming in various languages & Mac OSX Systems.Along with that he has interest in various social things. After the continuous efforts, he hascompleted this book.

Author also has skills in software development, iOS (iPhone, iPad & iPod) &AndroidApplication Development, Multimedia such as - Animation, Digital film making,

Video editing, visual effects & Sound Editing. He also has his online learning course inUdemy Market.


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This book is dedicated to :

My family for their continued love and support, and for always believing in me. I alsowant to dedicate this book to the God who always inspires me to do things.

This book would not have been possible without your love and understanding.

Thank you from the bottom of my heart.

Index

Program Name Page No.


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1. Hello World C++ Example Program 12

2. if Statement Example Program in C++ 13

3. if..else Statement Example Program In C++ 14

4. For Loop Example Program In C++ 16

5. While Loop Example Program In C++ 17

6. Do While Loop Example Program In C++ 18

7. Simple Example Program For Constructor In C++ 19

8. Simple Example Program For Parameterized

Constructor In C++ 20

9. Simple Example Program For Constructor

Overloading In C++ 23

10. Simple Constructor Example Program For Find Prime

Number In C++ 25

11. Simple Example Program For Copy

Constructor In C++ 28

12. Simple Class Example Program In C++ 30


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13. Simple Class Example Program For Find Prime

Number In C++ 32

14. Simple Example Program For Namespace In C++ 34

15. Find Prime Number Example Program In C++ 35

16. Find Prime Number by another method Example

Program In C++ 37

17. Fibonacci series Example Program In C++ 39

18. Factorial Using Recursion Example Program In C++ 41

19. Factorial Using Function Example Program In C++ 43

20. Factorial Using Loop Example Program In C++ 45

21. Simple Example Program for Function In C++ 46

22. Simple Example Program for Function Find

Smallest Number In C++ 47

23. Simple Example Program for Function to

Find Factorial In C++ 48

24. Simple Example Program for Inline Function

Using C++ Programming 50


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25. Simple Addition in C++ Binary Operator

Overloading Using C++ Programming 51

26. Simple Program for Multiple Inheritance


27. Simple Program for Inline Function Using

C++ Programming 56

28. Simple Program for Function Template


29. Simple Program for Function Overloading


30. Simple Program for Friend Function


31. Simple Program for Exception Handling with

Multiple Catch Using C++ Programming 65

32. Simple Program for Exception Handling Divide

by zero Using C++ Programming 67

33. Simple Program for Constructor Using

C++ Programming 69


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34. Simple Program for Binary Operator

Overloading Using C++ Programming 71

35. Simple Program Book Entry Using structure

Variable in C++ Programming 74

36. Simple Program for Write File Operation


37. Simple Program for Virtual FunctionsUsing C++ Programming 77

38. Simple Program for Virtual Base Class


39. Simple Program for Unary Operator Overloading


40. Simple Program for Static Data and Member

Function Using C++ Programming 86

41. Simple Program for Single Inheritance


42. Simple Program for Copy Constructor


43. Simple Program for Read File Operation


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44. Simple Program for Read & Write File Operation

(Convert lowercase to uppercase) Using C++ Programming 95

45. C++ program which adds two integers 97

46. C++ Program to output an integer, a floating

point number and a character 98

47. C++ Program to find the sum, difference, product

and quotient of two integers 99

48. Program to enter two integers and find their sum

and average 101

49. Program to enter velocity, acceleration and time

and print final velocity using the formula : v = u + a * t 102

50. Program to enter your age and print if you should

be in grade 10 103

51. Program to enter an integer and print if it is greater

or less than 100 105

52. Program to enter an integer and output its 15 multiples 106

53. Program to enter two integers and print the quotient


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and remainder 108

54. Program to enter an integer and find out if it is

even or odd 109

55.Program to change the foreground colors and draw

circles on the screen 110

56. Program to draw 2 rectangles and fill 1 of them 112

57. Program to enter three integers and output the

biggest integer 114

58. Program to draw circles 115

59. Program to change the background colors

on the screen 117

60. Program to enter three integers and output

the biggest integer using IF 119

61. Program to enter an integer and print out

its successor 120

62. Program to enter an integer and output the cube

of that integer 121

63. Program to enter a string and find its length 122


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64. Program to switch between different cases 123

65. Program to enter the principal, rate & time and

print the simple interest 125

66. Program to enter an integer and print if it is

prime or composite 127

67. Program to enter the sale value and print the

agent’s commission 129

68. Program to enter the unit reading and output the

customer’s telephone bill 131

69. Program to find the total days in the year till date 133

70. Program to compute the fibonacci series 134

71. Program to enter an integer and print its total

value based on the formula

‘x - 1/3!x^3 + 1/5!x^5 - 1/7!x^7 + 1/9!x^9’ 136

72. Program to convert days into years and weeks 138

73. Program to find the roots of a quadratic equation 139

74. Program to enter an integer and output it in the


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reversed form 141

75. Program to count the number of words and characters

in a sentence 142

76. write program to take the salary of the employee

as a screen input from the user. 144

77. Program to find the sum of each row & column

of a matrix of size n x m and 146if matrix is square, find the sum of the diagonals also.

78. Program to convert 2-digit octal number into binary

number and print it 149

79. Program to identify if an input is a symbol,

digit or character 151

80. Program to enter three integers and output the

smallest integer using IF 152

81. Program to enter a sentence and output the

number of uppercase & lowercase consonants, uppercase

& lowercase vowels in sentence. 153

82. Program to print the first 10 lines of pascal’s triangle 155

83. Program to enter 10 integers in a single-dimension


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array and then print out the array in ascending order 157

84. Program to find the sum of either of the diagonals

of a 4 x 4 matrix 159

85. Program to convert temperatures from Celsius to

Fahrenheit and vice versa 161

86. Program to enter a character and output

its ASCII code 163

87. Program to enter a letter and output the next 2 letters 164

88. Print 1 to 100 in C++, without loop and recursion 165

89. simple C++ program to show working of getline. 167

90. Print 2D matrix in different lines and without curly

braces in C/C++? 170

91. A simple and complete C++ program to demonstrate

friend Class 171


friend function of another class. 172


global friend 173


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94. Write a programs to show Constructors in C++ 174

95. Write a program on sorting. 175

96. Write a program to demonstrate Binary Search

Algorithms in C++ 176

97. Can namespaces be nested in C++?Write the program. 178

98. Write a program to find the prime numbers from

2 to 100 by using nested for loop. 180

99. Write a program using nested if statement. 181

100. Write a program to demonstrate nested

switch statement. 182

101. Predict the output of following C++ program.

(1 to 15 Programs) 183


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1. Hello World C++ Example Program

#include

#include

//Standard namespace declaration

using namespace std;

//Main Function

int main(){

//Standard Ouput Statement

cout


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2. if Statement Example Program in C++

#include

#include


int main()

{

// Variable Declaration int a;

//Get Input Value

couta;

//If Condition Check

if(a > 10)

{

// Block For Condition Success

cout


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15 Is Greater than 10


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3. if..else Statement Example Program In C++

#include

#include


int main()

{

// Variable Declaration

int a;

// Get Input Value

couta;

//If Condition Check

if(a > 10)

{

// Block For Condition Success

cout


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return 0;

}

Output 1:

Enter the Number :20

20 Is Greater than 10

Output 2:

Enter the Number :5

5 Is Less than/Equal 10


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4. For Loop Example Program In C++

#include

#include


int main()

{


int a;

// Get Input Value

couta;

//for Loop Block

for (int counter = 1; counter


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Execute 1 time

Execute 2 time

Execute 3 time

Execute 4 time

Execute 5 time


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5. While Loop Example Program In C++

#include

#include


int main()

{


// Get Input Value

couta;

int counter = 1;

//while Loop Block

while (counter


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Enter the Number :4

Execute While 1 time





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6. Do While Loop Example Program In C++

#include

#include


int main()

{


// Get Input Value

couta;

int counter = 1;

//Do while Loop Block

do

{

cout


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Execute Do While 1 time







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In C++

#include

#include


class Example {


int a,b;

public:

//Constructor

Example() {

// Assign Values In Constructor a=10;

b=20;

cout


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// Wait For Output Screen

getch();

return 0;

}

Output :

Im Constructor

Values :10 20


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8. Simple Example Program For

Parameterized Constructor In C++

#include

#include


class Example {


int a,b;

public:

//Constructor

Example(int x,int y) {

// Assign Values In Constructor a=x;

b=y;

cout


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getch();

return 0;

}

Output :

Im Constructor

Values :10 20


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Overloading In C++

#include

#include


class Example {


int a,b;

public:

//Constructor wuithout Argument

Example() {

// Assign Values In Constructor a=50;

b=100;

cout


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cout


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10. Simple Constructor Example Program

For Find Prime Number In C++

Algorithm:

STEP 1: Start the program.

STEP 2: Declare the class as Prime with data members,

Member functions.

STEP 3: Consider the argument constructor Prime() with integer

Argument.

STEP 4: To cal the function calculate() and do the following steps.

STEP 5: For i=2 to a/2 do

STEP 6: Check if a%i==0 then set k=0 and break.

STEP 7: Else set k value as 1.

STEP 8: Increment the value i as 1.

STEP 9: Check whether the k value is 1 or 0.

STEP 10:If it is 1 then display the value is a prime number.STEP 11:Else display the value is not prime.

STEP 12:Stop the program.

#include

#include


// Class Declaration

class prime

{

//Member Varibale Declaration

int a,k,i;

public:


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prime(int x)

{

a=x;

k=1;

{

for(i=2;i


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int a;

couta;

// Object Creation For Class

prime obj(a);

// Call Member Functions

obj.show();

getch();

return 0;

}

Output :

Enter the Number:7

7 is Prime Number.


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11. Simple Example Program For Copy

Constructor In C++

#include

#include


class Example {


int a,b;

public:

//Constructor with Argument

Example(int x,int y) {

// Assign Values In Constructor a=x;

b=y;

cout


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Example Object2=Object;

// Constructor invoked.

Object.Display();

Object2.Display();


getch();

return 0;

}

Output :

Im Constructor

Values :10 20

Values :10 20


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12. Simple Class Example Program In C++

#include

#include



class person

{

//Access - Specifierpublic:

//Varibale Declaration

string name;

int number;

};

//Main Function

int main()

{


person obj;

//Get Input Values For Object Varibales

coutobj.name;

coutobj.number;

//Show the Output


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cout


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13. Simple Class Example Program For Find

Prime Number In C++

#include

#include



class prime

{

//Member Varibale Declaration

int a,k,i;

public:

prime(int x) {

a=x;

}


void calculate()

{

k=1;

{

for(i=2;i


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}

else

{

k=1;

}

}

}

void show()

{

if(k==1)

cout


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}

Output:

Enter the Number:10

10 is Not Prime Numbers.

Enter the Number:7

7 is Prime Number.


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14. Simple Example Program For Namespace

In C++

#include


//Namespace namespacefirst

namespace namespacefirst

{

int value = 5;

}

//Namespace namespacesecond

namespace namespacesecond

{

double value = 3.1416;}

int main () {

//Namespace namespacefirst Varibale Usage

cout


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namespacefirst value : 5

namespacesecond value : 3.1416


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15. Find Prime Number Example Program In

C++

#include

#include

#include // Math.h For sqrt function


int main()

{


int n;

// Get Input Value coutn;

cout


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}

}


getch();

return 0;

}

Output:


List Of Prime Numbers Below 50

5

7

11

13

17

19

23

29

31

37

41

4347


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16. Find Prime Number by another method

Example Program In C++

#include

#include

#include // Math.h For sqrt function


int main()

{


int n;

// Get Input Value

coutn;

cout


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prime=false;

break;

}

}

if(prime) cout


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17. Fibonacci series Example Program In

C++

#include

#include


int main()

{


int counter, n;

long last=1,next=0,sum;

// Get Input Value

coutn;

//Fibonacci Series Calculation

while(next


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}

Output :


1

1

2

3

5

8

13

21

34

55

89

144

233


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18. Factorial Using Recursion Example

Program In C++

#include

#include


//Function

long factorial(int);

int main()

{


int counter, n;

// Get Input Value

coutn;

// Factorial Function Call

cout


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long factorial(int n)

{

if (n == 0)

return 1;

else

return(n * factorial(n-1));

}

Output :

Enter the Number :6

6 Factorial Value Is 720


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19. Factorial Using Function Example

Program In C++

#include

#include


//Function

long factorial(int);

int main()

{


int counter, n;

// Get Input Value

coutn;

// Factorial Function Call

cout


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long factorial(int n)

{

int counter;

long fact = 1;

//for Loop Block



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20. Factorial Using Loop Example Program

In C++

#include

#include


int main()

{


int counter, n, fact = 1;

// Get Input Value

coutn;

//for Loop Block



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Output :

Enter the Number :6

6 Factorial Value Is 720


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21. Simple Example Program for Function In

C++

#include

#include


// Simple Function

void printmessage ()

{

cout


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22. Simple Example Program for Function

Find Smallest Number In C++

#include

#include


// Simple Function

int compare( int a, int b )

{

return (a+4 < b)? a : b;

}

int main() {

cout


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23. Simple Example Program for Function to

Find Factorial In C++

#include

#include


// Simple factorial Function

int factorial(int var)

{

int fact=1;

for(int i=1;i


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24. Simple Example Program for Inline

Function Using C++ Programming

ALGORITHM:

Step 1: Start the pogram.

Step 2: Declare the class.

Step 3: Declare and define the inline function for multiplication and cube.

Step 4: Declare the class object and variables.

Step 5: Read two values.

Step 6: Call the multiplication and cubic functions using class objects.

Step 7: Return the values.

Step 8: Display.

Step 9: Stop the program.

Example Program Of Inline Function

#include#include

class line

{

public:

inline float mul(float x,float y)

{

return(x*y);

}

inline float cube(float x)

{

return(x*x*x);

}

};

void main()


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{

line obj;

float val1,val2;

clrscr();

coutval1>>val2;

cout


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25. Simple Addition in C++ Binary Operator

Overloading Using C++ Programming

// Header Files

#include

#include

//Standard namespace declaration


class overloading

{

int value;

public:

void setValue(int temp)

{

value = temp; }

overloading operator+(overloading ob)

{

overloading t;

t.value=value+ob.value;

return(t);

}

void display()

{

cout


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int main()

{

overloading obj1,obj2,result;

int a,b;

couta>>b;

obj1.setValue(a);

obj2.setValue(b);

result = obj1+obj2;

cout


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26. Simple Program for Multiple Inheritance

Using C++ Programming

To find out the student details using multiple inheritance.

ALGORITHM:

Step 1: Start the program.

Step 2: Declare the base class student.

Step 3: Declare and define the function get() to get the student details.

Step 4: Declare the other class sports.

Step 5: Declare and define the function getsm() to read the sports mark.

Step 6: Create the class statement derived from student and sports.

Step 7: Declare and define the function display() to find out the total and average.

Step 8: Declare the derived class object,call the functions get(),getsm() and display().


PROGRAM:#include

#include

class student

{

protected:

int rno,m1,m2;

public:

void get()

{

coutrno;

coutm1>>m2;


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}

};

class sports

{

protected:

int sm; // sm = Sports mark

public:

void getsm()

{

coutsm;

}

};

class statement:public student,public sports

{

int tot,avg;

public:

void display()

{

tot=(m1+m2+sm);

avg=tot/3;

cout


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obj.display();

getch();

}

Output:

Enter the Roll no: 100

Enter two marks

90

80

Enter the Sports Mark: 90

Roll No: 100 Total : 260

Average: 86.66


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27. Simple Program for Inline Function Using

C++ Programming

ALGORITHM:

Step 1: Start the pogram.


Step 3: Declare and define the inline function for multiplication and cube.

Step 4: Declare the class object and variables.

Step 5: Read two values.

Step 6: Call the multiplication and cubic functions using class objects.


Step 8: Display.


PROGRAM:

#include#include

class line

{

public:

inline float mul(float x,float y)

{

return(x*y);

}

inline float cube(float x)

{

return(x*x*x);

}

};


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void main()

{

line obj;

float val1,val2;

clrscr();

coutval1>>val2;

cout


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28. Simple Program for Function Template


To swap the numbers using the concept of function template.

ALGORITHM:


STEP 2: Declare the template class.

STEP 3: Declare and define the functions to swap the values.

STEP 4: Declare and define the functions to get the values.

STEP 5: Read the values and call the corresponding functions.

STEP6: Display the results.

STEP 7: Stop the program.

PROGRAM:

#include

#include

template

void swap(t &x,t &y)

{

t temp=x;

x=y;

y=temp;

}

void fun(int a,int b,float c,float d)

{

cout


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cout


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29. Simple Program for Function


ALGORITHM:


STEP 2: Declare the class name as fn with data members and member functions.

STEP 3: Read the choice from the user.

STEP 4: Choice=1 then go to the step 5.

STEP 5: The function area() to find area of circle with one integer argument.


STEP 7: The function area() to find area of rectangle with two integer argument.


STEP 9: The function area() to find area of triangle with three arguments, two as Integerand one as float.

STEP 10: Choice=4 then stop the program.

PROGRAM:

#include

#include

#include

#define pi 3.14

class fn

{

public:

void area(int); //circle

void area(int,int); //rectangle

void area(float ,int,int); //triangle

};

void fn::area(int a)

{


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cout


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cin>>a>>b;

obj.area(a,b);

break;

case 3:

couta>>b;

obj.area(0.5,a,b);

break;

case 4:

exit(0);

}

getch();

}

Output:

Function Overloading

1. Area of Circle

2. Area of Rectangle

3. Area of Triangle

4. Exit

Enter Your Choice: 2

Enter the Sides of the Rectangle: 5 5

Area of Rectangle is: 25

1. Area of Circle

2. Area of Rectangle

3. Area of Triangle

4. Exit

Enter Your Choice: 4


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30. Simple Program for Friend Function


ALGORITHM:


STEP 2: Declare the class name as Base with data members and member functions.

STEP 3: The function get() is used to read the 2 inputs from the user.

STEP 4: Declare the friend function mean(base ob) inside the class.

STEP 5: Outside the class to define the friend function and do the following.

STEP 6: Return the mean value (ob.val1+ob.val2)/2 as a float.


PROGRAM:

#include

#include

class base{

int val1,val2;

public:

void get()

{

coutval1>>val2;

}

friend float mean(base ob);

};

float mean(base ob)

{

return float(ob.val1+ob.val2)/2;

}


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void main()

{

clrscr();

base obj;

obj.get();

cout


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31. Simple Program for Exception Handling

with Multiple Catch Using C++ Programming

ALGORITHM:


Step 2: Declare and define the function test().

Step 3: Within the try block check whether the value is greater than zero or not.

a. if the value greater than zero throw the value and catch the corresponding exception.

b. Otherwise throw the character and catch the corresponding exception.

Step 4: Read the integer and character values for the function test().


PROGRAM:

#include

#include

void test(int x){

try

{

if(x>0)

throw x;

else

throw ‘x’;

}

catch(int x)

{

cout


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catch(char x)

{

cout


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32. Simple Program for Exception Handling

Divide by zero Using C++ Programming

ALGORITHM:


Step 2: Declare the variables a,b,c.

Step 3: Read the values a,b,c,.

Step 4: Inside the try block check the condition.

a. if(a-b!=0) then calculate the value of d and display.

b. otherwise throw the exception.

Step 5: Catch the exception and display the appropriate message.


PROGRAM:

#include

#includevoid main()

{

int a,b,c;

float d;

clrscr();

couta;

coutb;

coutc;

try

{

if((a-b)!=0)


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{

d=c/(a-b);

cout


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33. Simple Program for Constructor Using

C++ Programming

ALGORITHM:


STEP 2: Declare the class as Prime with data members,

Member functions.

STEP 3: Consider the argument constructor Prime() with integer

Argument.

STEP 4: To cal the function calculate() and do the following steps.

STEP 5: For i=2 to a/2 do

STEP 6: Check if a%i==0 then set k=0 and break.

STEP 7: Else set k value as 1.

STEP 8: Increment the value i as 1.

STEP 9: Check whether the k value is 1 or 0.

STEP 10:If it is 1 then display the value is a prime number.STEP 11:Else display the value is not prime.

STEP 12:Stop the program.

#include

#include

class prime

{

int a,k,i;

public:

prime(int x)

{

a=x;

}


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void calculate()

{

k=1;

{

for(i=2;i


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cin>>a;

prime obj(a);

obj.calculate();

obj.show();

getch();

}

Output:

Enter the number: 7

Given number is Prime Number


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34. Simple Program for Binary Operator


ALGORITHM:



Step 3: Declare the variables and its member function.

Step 4: Using the function getvalue() to get the two numbers.

Step 5: Define the function operator +() to add two complex numbers.

Step 6: Define the function operator –()to subtract two complex numbers.

Step 7: Define the display function.

Step 8: Declare the class objects obj1,obj2 and result.

Step 9: Call the function getvalue using obj1 and obj2

Step 10: Calculate the value for the object result by calling the function operator + andoperator -.

Step 11: Call the display function using obj1 and obj2 and result.



PROGRAM:

#include

#include

class complex

{

int a,b;

public:

void getvalue()

{

couta>>b;


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}

complex operator+(complex ob)

{

complex t;

t.a=a+ob.a;

t.b=b+ob.b;

return(t);

}

complex operator-(complex ob)

{

complex t;

t.a=a-ob.a;

t.b=b-ob.b;

return(t);

}

void display()

{

cout


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result = obj1+obj2;

result1=obj1-obj2;

cout


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35. Simple Program Book Entry Using

structure Variable in C++ Programming

#include

#include

struct books

{

char name[20],author[20];

}a[50];

int main()

{

int i,n;

coutn; cout


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cout


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36. Simple Program for Write File Operation


ALGORITHM:


STEP 2: Declare the variables.

STEP 3: Read the file name.

STEP 4: open the file to write the contents.

STEP 5: writing the file contents up to reach a particular condition.


PROGRAM:

#include

#include

#include

#includevoid main()

{

char c,fname[10];

ofstream out;

coutfname;

out.open(fname);

cout


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}

Output:

Enter File name: one.txt

Enter contents to store in file (enter # at end)

Master of Computer Applications#


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37. Simple Program for Virtual Functions


ALGORITHM:


Step 2: Declare the base class base.

Step 3: Declare and define the virtual function show().

Step 4: Declare and define the function display().

Step 5: Create the derived class from the base class.

Step 6: Declare and define the functions display() and show().

Step 7: Create the base class object and pointer variable.

Step 8: Call the functions display() and show() using the base class object and pointer.

Step 9: Create the derived class object and call the functions display() and show() usingthe derived class object and pointer.


PROGRAM:

#include

#include

class base

{

public:

virtual void show()

{

cout


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class drive:public base

{

public:

void display()

{

cout


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Output:

P points to Base

Base class display

Base class show

P points to Drive

Base class Display

Drive class Show


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38. Simple Program for Virtual Base Class


ALGORITHM:


Step 2: Declare the base class student.

Step 3: Declare and define the functions getnumber() and putnumber().

Step 4: Create the derived class test virtually derived from the base class student.

Step 5: Declare and define the function getmarks() and putmarks().

Step 6: Create the derived class sports virtually derived from the base class student.

Step 7: Declare and define the function getscore() and putscore().

Step 8: Create the derived class result derived from the class test and sports.

Step 9: Declare and define the function display() to calculate the total.

Step 10: Create the derived class object obj.

Step 11: Call the function get number(),getmarks(),getscore() and display().


PROGRAM:

#include

#include

class student

{

int rno;

public:

void getnumber()

{

coutrno;

}


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void putnumber()

{

cout


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{

coutscore;

}

void putscore()

{

cout


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getch();

}

Output:

Enter Roll No: 200

Enter Marks

Part1: 90

Part2: 80

Enter Sports Score: 80

Roll No: 200

Marks Obtained

Part1: 90

Part2: 80

Sports Score is: 80

Total Score is: 250


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39. Simple Program for Unary Operator


To write a program to find the complex numbers using unary operator overloading.

ALGORITHM:



Step 3: Declare the variables and its member function.

Step 4: Using the function getvalue() to get the two numbers.

Step 5: Define the function operator ++ to increment the values

Step 6: Define the function operator - -to decrement the values.

Step 7: Define the display function.

Step 8: Declare the class object.

Step 9: Call the function getvalue

Step 10: Call the function operator ++() by incrementing the class object and call thefunction display.

Step 11: Call the function operator - -() by decrementing the class object and call thefunction display.


PROGRAM:

#include

#include

class complex

{

int a,b,c;

public: complex(){}

void getvalue()


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{

couta>>b;

}

void operator++()

{

a=++a;

b=++b;

}

void operator—()

{

a=—a;

b=—b;

}

void display()

{

cout


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obj.display();

obj—;

cout


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40. Simple Program for Static Data and

Member Function Using C++ Programming

ALGORITHM:


STEP 2: Declare the class name as Stat with data member s and member functions.

STEP 3: The constructor Stat() which is used to increment the value of count as 1 to toassign the variable code.

STEP 4: The function showcode() to display the code value.STEP 5: The function showcount() to display the count value.


PROGRAM:

#include

#include

class stat

{

int code;

static int count;

public:

stat()

{

code=++count;

}

void showcode()

{

cout


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static void showcount()

{

cout


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41. Simple Program for Single Inheritance


ALGORITHM:


Step 2: Declare the base class emp.

Step 3: Define and declare the function get() to get the employee details.

Step 4: Declare the derived class salary.

Step 5: Declare and define the function get1() to get the salary details.

Step 6: Define the function calculate() to find the net pay.

Step 7: Define the function display().

Step 8: Create the derived class object.

Step 9: Read the number of employees.

Step 10: Call the function get(),get1() and calculate() to each employees.

Step 11: Call the display().


PROGRAM:PAYROLL SYSTEM USING SINGLE INHERITANCE

#include

#include

class emp

{

public:

int eno;

char name[20],des[20];

void get()

{

couteno;


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coutname;

coutdes;

}

};

class salary:public emp

{

float bp,hra,da,pf,np;

public:

void get1()

{

coutbp;

couthra;

coutda;

coutpf;

}

void calculate() {

np=bp+hra+da-pf;

}

void display()

{

cout


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void main()

{

int i,n;

char ch;

salary s[10];

clrscr();

coutn;

for(i=0;i


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Enter the Dearness allowance: 500

Enter the profitability Fund: 300

E.No E.name des BP HRA DA PF NP

150 ram Manager 5000 1000 500 300 6200


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42. Simple Program for Copy Constructor


ALGORITHM:


STEP 2: Declare the class name as Copy with data members and member functions.

STEP 3: The constructor Copy() with argument to assign the value.

STEP 4: To cal the function calculate() do the following steps.

STEP 5: For i=1 to var do

STEP 6: Calculate fact*i to assign to fact.

STEP 7: Increment the value as 1.

STEP 8: Return the value fact.

STEP 9: Print the result.


PROGRAM:

#include

#include

class copy

{

int var,fact;

public:

copy(int temp)

{

var = temp;

}

double calculate()

{

fact=1;


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for(int i=1;i


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43. Simple Program for Read File Operation


Program for read the content of a file.

ALGORITHM:



STEP 3: Get the file name to read.

STEP 4: Using ifstreamin(filename) check whether the file exist.

STEP 5: If the file exist then check for the end of file condition.

STEP 6: Read the contents of the file.

STEP 7: Print the contents of the file.


PROGRAM:#include

#include

#include

void main()

{

char c,fname[10];

clrscr();

coutfname;

ifstream in(fname);

if(!in)

{

cout


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return;

}

cout


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44. Simple Program for Read & Write File

Operation (Convert lowercase to uppercase)


ALGORITHM:



STEP 3: Read the file name.

STEP 4: open the file to write the contents.

STEP 5: writing the file contents up to reach a particular condition.

STEP6: write the file contents as uppercase.

STEP7: open the file to read the contents.


PROGRAM:

#include

#include

#include

#include

#include

#include

void main(){

char c,u;

char fname[10];

clrscr();

ofstream out;

coutfname;

out.open(fname);


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cout


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45. C++ program which adds two integers

#include

main() {

// A simple C++ program

int x, y, sum;

cout x;

cout > y;

sum = x + y;

cout


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46. C++ Program to output an integer, a

floating point number and a character

#include

#include

void main()

{

clrscr();

int x = 10;

float y = 10.1;

char z = ‘a’;

cout


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z = a


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47. C++ Program to find the sum, difference,

product and quotient of two integers

#include

#include

void main()

{

clrscr();

int x = 10;

int y = 2;

int sum, difference, product, quotient;

sum = x + y;

difference = x - y;

product = x * y;

quotient = x / y; cout


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OUTPUT :

The sum of 10 & 2 is 12.

The difference of 10 & 2 is 8.

The product of 10 & 2 is 20.

The quotient of 10 & 2 is 5.


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48. Program to enter two integers and find

their sum and average

#include

#include

#include

void main()

{

clrscr();

int x,y,sum;

float average;

cout x>>y;

sum=x+y;

average=sum/2;cout


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The sum of 8 and 6 is 14.

The average of 8 and 6 is 7.


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49. Program to enter velocity, acceleration

and time and print final velocity using the

formula : v = u + a * t

#include

#include

void main()

{

clrscr();

int v,u,a,t;

cout u>>a>>t;

v=u+a*t;

cout


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50. Program to enter your age and print if

you should be in grade 10

#include

#include

void main()

{

clrscr();

int age;

cout age;

if(age==16)

{

cout


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INPUT :

15

OUTPUT :

Your present age is 15 years.

You are not of the right age for joining grade 10 !


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51. Program to enter an integer and print if it

is greater or less than 100

#include

#include

void main(){

clrscr();

int x;

cout x;

if(x>100)

{

cout


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OUTPUT :

74 is less than 100.


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52. Program to enter an integer and output its

15 multiples

#include

#include

int main()

{

clrscr();

int x;

cout >x;

cout


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12x4=48

12x5=60

12x6=72

12x7=84

12x8=96

12x9=108

12x10=120

12x11=132

12x12=144

12x13=156

12x14=168

12x15=180


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53. Program to enter two integers and print

the quotient and remainder

#include

#include

int main()

{

clrscr();

int x,y,quotient,remainder;

cout >x>>y;

quotient=x/y;

remainder=x-(quotient*y);

cout


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54. Program to enter an integer and find out

if it is even or odd

#include

#include

void main()

{

clrscr();

int x;

cout >x;

if(x%2==0)

cout


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55.Program to change the foreground colors

and draw circles on the screen

#include

#include

#include

#include

void main (int)

{

int gdriver=DETECT,gmode,errorcode; //Requesting auto-detection.

int midx,midy,x;

//Initializing graphics and local variables.

initgraph(&gdriver,&gmode,“d:\bc3\bgi”);

//Reading result of initialization.

errorcode=graphresult();if(errorcode!=grOk)

//An error occurred.

{

printf(“Graphics error occurred : %s \n”,grapherrormsg(errorcode));

printf(“Press any key to stop : “);

getch();

exit(1); //Terminate the program due to error.

}

/*Changing the foreground color.

Note : Press enter to exit the last screen as it is black and

it may appear as if the program has stopped running.*/

for(x=15;x>=0;x—)

{

setcolor(x);


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circle(20+(x*40),200,15);/*Changing x-coordinate by 50 each time so that

the circles do not overlap.*/

getch();

}

cleardevice(); //Clearing the screen in the graphics mode.

circle(200,200,50);

getch();

closegraph();

}

This graphics program changes the foreground colors on the screen gradually from white

to black, in-turn drawing circles of that foreground color, using the ‘setcolor’ command.


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56. Program to draw 2 rectangles and fill 1 of

them

#include

#include

#include

#include

#include

#include

void main()

{

clrscr();

int gd = DETECT,gm,errorcode; //Requesting auto-detection.


initgraph (&gd, &gm, “d:\bc3\bgi”); //Path where graphics drivers are installed

//Read result of initialization.

errorcode = graphresult();

//An error occured.

if (errorcode != grOk)

{

cout


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/*Drawing a rectangle having top LHS vertex at (300, 300)

and bottom RHS vertex at (600, 400)*/

rectangle(300, 300, 600, 400);

rectangle(100, 100, 200, 200);

getch();

floodfill(120, 120, WHITE);

getch();

closegraph();

}

This graphics program draws two rectangles, but fills in only one of them with a whitecolor using the ‘floodfill’ command.


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57. Program to enter three integers and

output the biggest integer

#include

#include

int main()

{

clrscr();

int x,y,z,biggest;

cout >x>>y>>z;

biggest=x>y?(x>z?x:z):(y>z?y:z);

cout


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79


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58. Program to draw circles

#include #include

#include

#include

#include

#include

void main()

{

clrscr();

int gd=DETECT,gm,errorcode; //Requesting auto-detection.


initgraph(&gd,&gm,“d:\bc3\bgi”); //Path where graphics drivers are installed

//Reading result of initialization.

errorcode=graphresult();

//An error occured.

if (errorcode!=grOk)

{

cout


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getch();

closegraph();

}

Output :

This graphics program draws three circles on the screen.


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59. Program to change the background colors

on the screen

#include

#include

#include

#include

void main (int)

{

int gdriver=DETECT,gmode,errorcode; //Requesting auto-detection.

int midx,midy,x;


initgraph(&gdriver,&gmode,“d:\bc3\bgi”);

//Reading result of initialization.errorcode=graphresult();

if(errorcode!=grOk)

//An error occurred.

{

printf(“Graphics error occurred : %s \n”,grapherrormsg(errorcode));

printf(“Press any key to stop : “);

getch();

exit(1); //Terminate the program due to error.

}

/*Changing the background color.

Note : Press enter to see the first screen as it is black and

it may appear as if the program has stopped running.*/

for(x=0;x


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setbkcolor(x);

getch();

}

closegraph();

}

Output :

This graphics program changes the background colors on the screen gradually from black

to white using the ‘setbkcolor’ command.


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60. Program to enter three integers and

output the biggest integer using IF

#include

#include

int main()

{

clrscr();

int x,y,z,biggest;

cout >x>>y>>z;

biggest=x;

if(y>biggest)

biggest=y;

if(z>biggest)biggest=z;

cout


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OUTPUT :

The biggest integer out of the 3 integers you typed 32, 47 & 44 is :

47


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61. Program to enter an integer and print out

its successor

#include

#include

void value(int);

void main()

{

clrscr();

int x;

cout >x;

cout


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OUTPUT :

The successor of 49 is 50.


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62. Program to enter an integer and output

the cube of that integer

#include

#include

int cube(int x); //The prototype.

void main()

{

clrscr();

int a;

cout >a;

cout


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OUTPUT :

The cube of 8 is : 512


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63. Program to enter a string and find its

length

#include

#include

#include

void main()

{

clrscr();

int slength;

char x[81]; //Allowing the user to input a maximum of 80 characters.

cout x;

slength=strlen(x);

cout


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64. Program to switch between different cases

#include

#include

int main()

{

clrscr();

int choice;

cout


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The appropriate message is then outputted using the ‘cout’ command.

INPUT :

3

OUTPUT :

You chose to play…playing too much everyday is bad.


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INPUT :

1000 5 3

OUTPUT :

Principal = $1000

Rate = 5%

Time = 3 years

Simple Interest = $150


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66. Program to enter an integer and print if it

is prime or composite

#include

#include

#include

void main()

{

clrscr();

int num1,x;

cout num1;

for(x=2;x


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This program takes in an integer num1 as a screen input from the user.

It then determines whether the integer is prime or composite.

It finally outputs the approriate message by writing to the ‘cout’ stream.

INPUT :

23

OUTPUT :

23 is a prime number.


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198/309

67. Program to enter the sale value and print

the agent’s commission

#include

#include

void main()

{

clrscr();

long int svalue;

float commission;

cout svalue;

if(svalue


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cout


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201/309

68. Program to enter the unit reading and

output the customer’s telephone bill

#include

#include

int main()

{

clrscr();

long int units,charge=0;

float total;

const int rent=25;

cout >units;

if(units>200)

charge=(units-200)*20+150*40+50*60;else if(units>50)

charge=(units-50)*40+50*60;

else

charge=units*60;

total=0.01*charge+rent;

cout


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A compulsory fee of $25, plus

60 cents per unit for the first 50 units,

40 cents per unit for the next 150 units,

20 cents per unit for anything above 200 units.

It then outputs the bill using the ‘cout’ command.

INPUT :

250

OUTPUT :

You have used 250 units.

Your total bill is $125


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204/309

69. Program to find the total days in the year

till date

#include

#include

void main()

{

clrscr();

int day,month,total;

int days_per_month[12]={31,28,31,30,31,30,31,31,30,31,30,31};

cout month;

cout day;total=day;

for(int x=0;x


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OUTPUT :

The number of days in this year till date = 163


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70. Program to compute the fibonacci series

#include

#include

void main()

{

clrscr();

int a,b,x,y,num1,ct;a=0;

b=1;

cout num1;

cout


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INPUT :

12

OUTPUT :

0

1

1

2

3

5

8

13

21

34

55

89


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71. Program to enter an integer and print its

total value based on the formula


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‘x - 1/3!x^3 + 1/5!x^5 - 1/7!x^7 + 1/9!x^9’

#include

#include

#include

int main()

{

clrscr();

float factorial=1;float num,tot,term,total;

int i,n=20,index,j=1;

cout >num;

tot=num;

total=num;

for(i=2,index=3;i


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1/7!x^7 + 1/9!x^9.

It then outputs the final answer using the ‘cout’ command.

INPUT :

3

OUTPUT :

Total = 0.14112


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213/309

72. Program to convert days into years and

weeks

#include

#include

void main()

{

clrscr();

int days,years,weeks,num1;

cout days;

years=days/365;

num1=days-(years*365);

weeks=days/7;num1=days-(weeks*7);

cout


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789 days =

112 weeks OR

2 years.


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73. Program to find the roots of a quadratic

equation

#include

#include

#include

int main()

{

clrscr();

float a,b,c,d,root1,root2;

cout a>>b>>c;

if(!a){

if(!b)

cout


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getch();

return 0;

}

This program takes in the values of the three coefficients a, b, and c as a screen input fromthe user.

It then determines the roots of the quadratic equation using the formula ax^2 + bx + c = 0.

The two roots are then outputted using the ‘cout’ command.

INPUT :

4 4 -3

OUTPUT :

The first root = 0.5

The second root = -1.5


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74. Program to enter an integer and output it

in the reversed form

#include

#include

void main()

{

clrscr();

long int num1,num2,rnum=0;

cout num1;

num2=num1;

do

{rnum=rnum*10;

int digit=num1%10;

rnum+=digit;

num1/=10;

}

while(num1);

cout


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987

OUTPUT :

The integer you typed is 987.

The reversed integer is 789.


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75. Program to count the number of words

and characters in a sentence

#include

#include

void main()

{

clrscr();

int countch=0;

int countwd=1;

cout


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INPUT :

this is a nice program

OUTPUT :

Words = 5

Characters = 18


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76. write program to take the salary of the

employee as a screen input from the user.


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It then deducts the income tax from the salary

on the following basis :


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20% income tax if the salary is between $7000

and $15000.


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10% income tax if the salary is below $7000.

#include

#include

void main()

{

clrscr();

int itrate;float salary,itax,nsalary=0;

cout >salary;

if(salary>15000)

{

itax=salary*30/100;

itrate=30;

}

else if(salary>=7000)

{

itax=salary*20/100;

itrate=20;

}

else

{

itax=salary*10/100;

itrate=10;

}

nsalary=salary-itax;

cout


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cout


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77. Program to find the sum of each row &

column of a matrix of size n x

Date post:	06-Jul-2018
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100+ C++ Programs with Output For Students & Professionals - Aniket Pataskar

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