Cpp.docx

BANGALORE INSTITUTE OF TECHNOLOGY K.R.Road, V.V.Puram, Bengaluru-560004

Department of Master of Computer Applications C++ Programming Laboratory Subject Code: 18MCA16 I Semester MCA 2018-2019

BANGALORE INSTITUTE OF TECHNOLOGY K.R.Road, V.V.Puram, Bengaluru-560004

Department of Master of Computer Applications

LAB CERTIFICATE This is to certify that BHARATH CR has satisfactorily completed the course on experiments in C++ PROGRAMMING LABORATORY as prescribed by the VISHVESVARAYA TECHNOLOGICAL UNIVERSITY for I Semester MCA during the academic year 2018-2019. USN No:1IH18MCA03

Prof. MADHU H K

Prof.A G VISWANATH

(Asst. Professor, Dept. of MCA)

(Asst. Professor, Dept. of MCA)

BIT, Bengaluru.

Examiners 1. 2.

BIT, Bengaluru.

Prof. A M Shivaram Assoc. Professor, HOD, Dept. of MCA BIT, Bengaluru.

Bangalore Institute of Technology K.R. Road, V.V. Puram, Bangalore – 560004 Department of Master of Computer Application

Vision To transform young graduates into skilled computer professionals to meet Industrial and societal needs. Mission 

To enhance the Teaching learning process to meet quality education in the field of Computer applications To impart the knowledge in current technologies to meet the industrial needs To inculcate ethical values and leadership qualities for the betterment of society

  PEO’s   

PEO1: To develop quality software with innovative ideas to meet the industrial requirements PEO2: To imbibe the current technologies and to adopt in computing profession as per the changing needs PEO3: To progress in their career with leadership qualities and ethical values that enhances self and societal growth

Program Outcome: PO1

Apply knowledge of computing fundamentals, computing specialization, mathematics and domain knowledge appropriate for conceptualization of computing models as per the requirement

PO2

Identify, analyze systematize and solve computer application related problems using the principles of mathematics, computing sciences and relevant domain knowledge

PO3

Design, develop and evaluate software solution to solve complex problem with societal and environment concern.

PO4

Conduct investigations of complex computing problems using research based methods to provide valid conclusions.

PO5

Select, adapt and apply appropriate techniques, resources and modern tools for complex computing activities .

PO6

Understand ethical responsibilities and cyber regulations to perform professionally.

PO7

Involve in independent learning for continual development as computing professionals

PO8

Apply and demonstrate the computing and management principle to manage projects in multidisciplinary environment as an individual or as a member in team.

PO9

Comprehend and write effective reports and make quality presentations about complex computing activities

PO10

Understand and assess the impact of computing practices and socioenvironmental concern

PO11

Work as an individual and a member or a leader in multidisciplinary environment

PO12

Identify business opportunity and pursue using innovative ideas to create value and wealth for the betterment of society

Bangalore Institute of Technology K.R. Road, V.V. Puram, Bangalore – 560004 Department of Master of Computer Applications C++ PROGRAMMING LABORATORY Course Outcome At the end of this course, the students will be able to CO1:Apply and implement major programming and object oriented concepts like function overloading, operator overloading, Encapsulations, and inheritance, message passing to solve real-world problems. CO2: Use major C++ features such as Virtual functions, Templates for data type independent designs and File I/O to deal with large data sets. CO3: Analyze, design and develop solutions to real-world problems applying OOP Concepts of C++. PO1

PO2

PO3

CO1

3

3

3

18MCA18 CO2

3

3

3

CO3

3

3

3

CO4

3

3

3

PO4

PO5

PO6

PO7

PO8

PO9

PO10

PO11

PO12

C++ PROGRAMMING LABORATORY Subject Code : 18MCA16

I.A Marks : 40

Hours/Week : 3

Exam Marks : 60

Total Hours : 42

Exam Hours : 3

Implement the following using windows operating system.

PART-A 1. Write a C++ program to find the sum for the given variables using function with default arguments. 2. Write a C++ program to swap the values of two variables and demonstrates a function using call by value. 3. Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using reference type (&). 4. Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using pointer (*). 5. Write a C++ program to swap the values of two dynamically allocated variables and release the memory after swapping. (use new & delete operators) 6. Write a program to find the largest, smallest & second largest of three numbers. (use inline function MAX and MIN to find largest & smallest of 2 numbers) 7. Write a program to calculate the volume of different geometric shapes like cube, cylinder and sphere and hence implement the concept of Function Overloading. 8. Write a C++ program to create a template function for Bubble Sort and demonstrate sorting of integers and doubles.

PART-B 1. Define a STUDENT class with USN, Name, and Marks in 3 tests of a subject. Declare an array of Ten STUDENT objects. Using appropriate functions, find the average of the two better marks for each student. Print the USN, Name and the average marks of all the students. 2. Write a C++ program to create a class called COMPLEX and implement the following overloading functions ADD that return a complex number: (i) ADD (a, s2) – where ‘a’ is an integer (real part) and s2 is a complex number (ii) ADD (s1, s2) – where s1 and s2 are complex numbers. 3. Friend functions and friend classes: a) Write a program to define class name HUSBAND and WIFE that holds the income respectively. Calculate and display the total income of a family using Friend function. b) Write a program to accept the student detail such as name and 3 different marks by get_data() method and display the name and average of marks using display() method. Define a friend class for calculating the average of marks using the method mark_avg(). 4. Create a class called MATRIX using two-dimensional array of integers. Implement the following operations by overloading the operator == which checks the compatibility of two matrices to be added and subtracted. Perform the addition and subtraction by overloading the + and – operators respectively. Display the results by overloading the operator < < If (m1== m2) then m3 = m1+m2 and m4 = m1- m2 else display error. 5. Write a program to create an HUMAN class with features as number of Head, Legs, Hands.(NOTE: Number of Head, Legs and Hands are of integer types) a. Create an object HUMAN1 using default constructor. (Default features to have 1 Head, 2 Legs and 2 Hands) b. Create an object HUMAN2 with customized inputs using Parameterized Constructor c. Create an object HUMAN3 using existing object HUMAN1 (Copy Constructor). d. All Humans die after their lifetime. (Destructor) 6. Demonstrate Simple Inheritance concept by creating a base class FATHER with data members SurName and BankBalance and creating a derived class SON, which inherits SurName and BankBalance feature from base class but provides its own feature FirstName and DOB. Create and initialize F1 and S1 objects with appropriate constructors and display the Father & Son details. (Hint : While creating S1 object, call Father base class parameterized constructor through derived class by sending values) 7. Create an abstract base class EMPLOYEE with data members: Name, EmpID and BasicSal and a pure virtual function Cal_Sal().Create two derived classes MANAGER (with data members: DA and HRA and SALESMAN (with data members: DA, HRA and TA). Write appropriate constructors and member functions to initialize the data, read and write the data and to calculate the net salary. The main() function should create array of base class pointers/references to invoke overridden functions

and hence it implements run-time polymorphism. 8. Write a program to implement FILE I/O operations on characters. I/O operations includes inputting a string, Calculating length of the string, Storing the string in a file, fetching the stored characters from it, etc. 9. Write a program to implement Exception Handling with minimum 5 exceptions Classes including two built-in exceptions. 10. a.Write a program to concatenate 2 strings using STL String class functions. b.Write a simple C++ program to store and display integer elements using STL Vector class. Note: In the examination questions must be given based on above lots

Bangalore Institute of Technology K.R. Road, V.V. Puram, Bangalore – 560004 Department of Master of Computer Applications C++ PROGRAMMING LABORATORY

Subject Code : 18MCA16

I.A Marks : 40

Hours/Week : 3

Exam Marks : 60

Total Hours : 42

Exam Hours : 3

Lesson Plan Sl No. 1

Weeks Week-1

2

Week-2

3

Week-3

4

Week-4

5

Week-5

6

Week-6

Topic to be covered Find the Sum for given variable Swap the two values using call by value Swap the two values using call by reference using reference type Swap the two values using call by reference using pointer Swap the values of two dynamically allocated variables and release the memory after swapping. Program to find largest, seclargest and smallest. Program to calculate the volume of different geometric shapes like cube, cylinder and sphere. Program to create a template function for Bubble Sort and demonstrate sorting of integers and doubles. Define a STUDENT class with USN, Name, and Marks in 3 tests of a subject, Find the average of the two better marks for each student Program to create a class called COMPLEX and implement the following (i) ADD (a, s2) – where ‘a’ is an integer (real part) and s2 is a complex number (ii) ADD (s1, s2) – where s1 and s2 are complex numbers.

7

Week-7

8

Week-8

Friend functions and friend classes: Program to define class name HUSBAND and WIFE that holds the income Program to accept the student detail such as name and 3 different marks by get_data() method and display the name and average of marks using display() method Create a class called MATRIX using two-dimensional array of integers.

9

Week-9

10

Week-10

11

Week-11

12

Week-12

13

Week-13

14

Week-14

Implement the following operations by overloading Write a program to create an HUMAN class with features as number of Head, Legs, Hands. Demonstrate Simple Inheritance concept by creating a base class FATHER with data members SurName and Bank Balance and creating a derived class SON Create an abstract base class EMPLOYEE with data members: Name, EmpID and BasicSal and a pure virtual function Cal_Sal(). Write a program to implement FILE I/O operations on characters. I/O operations includes inputting a string Write a program to implement Exception Handling with minimum 5 exceptions Classes Write a program to concatenate 2 strings using STL String class functions. Write a simple C++ program to store and display integer elements using STL Vector class

C++ PROGRAMMING LABORATORY Subject Code : 18MCA186

I.A Marks : 40

Hours/Week : 3

Exam Marks : 60

SL NO.

Contents

WRITE UP (10) PART A

1

Program 1

2

Program 2

3

Program 3

4

Program 4

5

Program 5

6

Program 6

7

Program 7

8

Program 8

PART B 1

Program 1

2

Program 2

3

Program 3a and 3b

4

Program 4

5

Program 5

6

Program 6

EXECUTIO N (5)

VIVA (5)

Staff signature

7

Program 7

8

Program 8

9

Program 9

10

Program 10a and 10b

Total Hours : 42

ExamHours : 3

Bangalore Institute of Technology K.R. Road, V.V. Puram, Bangalore – 560004 Department of Master of Computer Applications C++ PROGRAMMING LABORATORY

Subject Code : 18MCA16

I.A Marks : 40

Hours/Week : 3

Exam Marks : 60

Total Hours : 42

Exam Hours : 3

LAB INTERNALS Rubrix

Max Marks-20

TEST

Max Marks-20

TOTAL

Max Marks-40

Signature of the Faculty

CONTENTS PART-A SL No

Programs Write a C++ program to find the sum for the given variables using function with default arguments.

Pg No

2

Write a C++ program to swap the values of two variables and demonstrates a function using call by value.

3-4

3

Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using reference type (&). Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using pointer (*). Write a C++ program to swap the values of two dynamically allocated variables and release the memory after swapping. (use new & delete operators). Write a program to find the largest, smallest & second largest of three numbers. (use inline function MAX and MIN to find largest & smallest of 2 numbers). Write a program to calculate the volume of different geometric shapes like cube, cylinder and sphere and hence implement the concept of Function Overloading. Write a C++ program to create a template function for Bubble Sort and demonstrate sorting of integers and doubles.

5-6

1

4

5

6

7

8

1-2

7-8

9-10

11-13

14-15

16-18

PART-B SL No 1

2

3

4

5

6

Programs Define a STUDENT class with USN, Name, and Marks in 3 tests of a subject. Declare an array of Ten STUDENT objects. Using appropriate functions, find the average of the two better marks for each student. Print the USN, Name and the average marks of all the students. Write a C++ program to create a class called COMPLEX and implement the following overloading functions ADD that return a complex number: (i) ADD (a, s2) – where ‘a’ is an integer (real part) and s2 is a complex number (ii) ADD (s1, s2) – where s1 and s2 are complex numbers. Friend functions and friend classes: a) Write a program to define class name HUSBAND and WIFE that holds the income respectively. Calculate and display the total income of a family using Friend function. b) Write a program to accept the student detail such as name and 3 different marks by get_data() method and display the name and average of marks using display() method. Define a friend class for calculating the average of marks using the method mark_avg(). Create a class called MATRIX using two-dimensional array of integers. Implement the following operations by overloading the operator == which checks the compatibility of two matrices to be added and subtracted. Perform the addition and subtraction by overloading the + and – operators respectively. Display the results by overloading the operator < < If (m1== m2) then m3 = m1+m2 and m4 = m1- m2 else display error. Write a program to create an HUMAN class with features as number of Head, Legs, Hands.(NOTE: Number of Head, Legs and Hands are of integer types) a. Create an object HUMAN1 using default constructor. (Default features to have 1 Head, 2 Legs and 2 Hands) b. Create an object HUMAN2 with customized inputs using Parameterized Constructor c. Create an object HUMAN3 using existing object HUMAN1 (Copy Constructor). d. All Humans die after their lifetime. (Destructor)

Pg No

Demonstrate Simple Inheritance concept by creating a base class FATHER with data members SurName and BankBalance and creating a derived class SON, which inherits SurName and BankBalance feature from base class but provides its own feature FirstName and DOB. Create and initialize F1 and S1 objects with appropriate constructors and display the Father & Son details. (Hint : While creating S1 object, call Father base class parameterized constructor through derived class by sending values)

39-41

20-22

23-25

26-31

32-35

36-38

7

Create an abstract base class EMPLOYEE with data members: Name, EmpID and BasicSal and a pure virtual function Cal_Sal().Create two derived classes MANAGER (with data members: DA and HRA and SALESMAN (with data members: DA, HRA and TA). Write appropriate constructors and member functions to initialize the data, read and write the data and to calculate the net salary. The main() function should create array of base class pointers/references to invoke overridden functions and hence it implements run-time polymorphism. Write a program to implement FILE I/O operations on characters. I/O operations includes inputting a string, Calculating length of the string, Storing the string in a file, fetching the stored characters from it, etc.

42-45

9

Write a program to implement Exception Handling with minimum 5 exceptions Classes including two built-in exceptions.

48-51

10

a). Write a program to concatenate 2 strings using STL String class functions. b).Write a simple C++ program to store and display integer elements using STL Vector class.

52-55

8

46-47

C++ Programming Lab

18MCA16 PART-A

1. Write a C++ program to find the sum for the given variables using function with default arguments.

#include #include

void sum(int a, int b, int c=6, int d=10); int main() { clrscr(); int a,b,c,d; cout<<"Enter any two numbers\n"; cin>>a>>b; sum(a,b); getch(); }

void sum(int a1,int a2,int a3,int a4) { int temp; temp=a1+a2+a3+a4; cout<<"a=" < #include

void swap(int x,int y); int main() { clrscr(); int a=100; int b=200; cout<<"Before swap value of a:"<
//function definition to swap the values void swap(int x,int y) { int temp; temp=x; x=y;

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

y=temp; cout<<"After swap, value of a:"<<x<<endl; cout<<"After swap, value of b:"<
Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

3. Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using reference type (&).

#include #include

void swap(int &x,int &y); int main() { clrscr(); //local variable declaration: int a=100; int b=200; cout<<"Before swap, value of a:"<
void swap(int &x,int &y) { int temp;

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

temp=x; /* save the value of x */ x=y; /* put y into x */ y=temp; /* put x into y */ }

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

4. Write a C++ program to swap the values of two variables and demonstrates a function using Call by reference using pointer (*).

// Program: Call by reference using „&‟ operator. #include #include

void swap (int *x, int *y) { int temp;

temp = *x; *x = *y; *y = temp; }

void main () { cout<<"---------- Swapping Using Call By Reference UsingPointer(*)---------\n"<<endl; int a = 100; int b = 200;

cout << "**** Output Before swap ****"<< endl; cout << " a = " << a << endl; cout << " b = " << b << endl;

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

swap (&a, &b); cout << "**** Output After swap ****"<< endl; cout << " a = " << a << endl; cout << " b = " << b << endl; }

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

5. Write a C++ program to swap the values of two dynamically allocated variables and release the memory after swapping. (use new & delete operators)

// Program: Call by reference using „&‟ operator. #include using namespace std; void swap (int *x, int *y) { int temp; temp = *x; *x = *y; *y = temp; }

int main () { cout<<"******** Swapping Using Dynamic Variable ******\n"<<endl; int *a; int *b;

a = new int (50); b = new int (100);

cout << "**** Output Before swap ****"<< endl; cout << " a = " << *a << endl; cout << " b = " << *b << endl;

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

swap (a, b); cout << "**** Output After swap ****"<< endl; cout << " a = " << *a << endl; cout << " b = " << *b << endl; }

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

6. Write a program to find the largest, smallest & second largest of three numbers. (use inline function MAX and MIN to find largest & smallest of 2 numbers)

#include #include

inline void max(int a, int b, int c) { int largest, seclargest; if (a >= b && a >= c) { largest = a; if (b >= c) seclargest = b; else seclargest = c; } else if (b >= c && b >= a) { largest = b; if (a >= c) seclargest = a; else seclargest = c; } else

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

{ largest = c; if (a >= b) seclargest = a; else seclargest = b; } cout << "largest number:" << largest << endl; cout << "second largest number:" << seclargest << endl; }

inline void min(int a, int b, int c) { int smallest; if (a <= b && a <= c) { smallest = a; } else { if (b <= c) smallest = b; else smallest = c; } cout << "smallest number:" << smallest << endl;

Bangalore Institute Of Technology

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}

int main() { clrscr(); int a, b, c; cout << "please enter 3 numbers to compare:"; cin >> a >> b >> c; max(a, b, c); min(a, b, c); getch(); }

Bangalore Institute Of Technology

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C++ Programming Lab

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Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

7. Write a program to calculate the volume of different geometric shapes like cube, cylinder and sphere and hence implement the concept of Function Overloading.

#include #include

float vol(int,int); float vol(float); int vol(int);

int main() { clrscr(); int r,h,a; float r1; cout<<"Enter radius and height of a cylinder:"; cin>>r>>h; cout<<"Enter side of cube:"; cin>>a; cout<<"Enter radius of sphere:"; cin>>r1; cout<<"volume of cylinder is"<
Bangalore Institute Of Technology

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return 0; }

float vol(int r,int h) { return(3.14*r*h); }

float vol(float r1) { return((4*3.14*r1*r1*r1)/3); }

int vol(int a) { return(a*a*a); }

Bangalore Institute Of Technology

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Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

8. Write a C++ program to create a template function for Bubble Sort and demonstrate sorting of integers and doubles.

#include #include #include

template class bubble { t a[10];

public: void get(int); void sort(int); void display(int); }; template void bubble::get(int n) { int i; cout << "The sorted array is\n"; for (i = 0; i < n; i++) cin >> a[i]; } template

Bangalore Institute Of Technology

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C++ Programming Lab

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void bubble::display(int n) { int i; cout << "The sorted array is\n"; for (i = 0; i < n; i++) cout << a[i] << setw(10); } template void bubble::sort(int n) { int i, j; t temp; for (i = 0; i < n - 1; i++) { for (j = 0; j < n - i - 1; j++) { if (a[j] > a[j + 1]) { temp = a[j]; a[j] = a[j + 1]; a[j + 1] = temp; } } } } int main()

Bangalore Institute Of Technology

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C++ Programming Lab

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{ clrscr(); int n; bubble b1; bubble<double> b2;

cout << "\n Bubble sort on integer values\n"; cout << "Enter the size of array:\n"; cin >> n; b1.get(n); b1.sort(n); b1.display(n); cout << "\n bubble sort on double values \n"; cout << "Enter the size of array:\n"; cin >> n; b2.get(n); b2.sort(n); b2.display(n); getch(); }

Bangalore Institute Of Technology

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C++ Programming Lab

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Output:

Bangalore Institute Of Technology

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C++ Programming Lab

Bangalore Institute Of Technology

18MCA16

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C++ Programming Lab

18MCA16 PART B

1. Define a STUDENT class with USN, Name, and Marks in 3 tests of a subject. Declare an array of 10 STUDENT objects. Using appropriate functions, find the average of the two better marks for each student. Print the USN, Name and the average marks of all the students. #include #include class student { char usn[10], name[20]; int t1, t2, t3; float avg; public: void read(); void disp(); void calc(); }; void student::read() { cout << "Enter usn\n"; cin >> usn; cout << "Enter name\n"; cin >> name; cout << "Enter 3 test marks\n"; cin >> t1; cin >> t2; cin >> t3; } void student::calc() { if ((t1 < t2) && (t1 < t3)) { avg = (t2 + t3) / 2; cout << avg; } else if (t2 < t3)

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

avg = (t1 + t3) / 2; else avg = (t1 + t2) / 2; } void student::disp() { cout << usn << "\t" << name << "\t" << t1 << "\t" << t2 << "\t" << t3 << "\t" << avg << endl; } int main() { clrscr(); student stud[' ']; int i, n; cout << "Enter number of students\n"; cin >> n; for (i = 0; i < n; i++) { stud[i].read(); stud[i].calc(); } cout << "\n USN\tNAME\tTEST1\tTEST2\tTEST3\tAVERAGE\n"; for (i = 0; i < n; i++) stud[i].disp(); getch(); return 0; }

Bangalore Institute Of Technology

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C++ Programming Lab

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Output:

Bangalore Institute Of Technology

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C++ Programming Lab

18MCA16

2. Write a C++ program to create a class called COMPLEX and implement the following overloading functions ADD that return a complex number: (i) ADD (a, s2) – where ‘a’ is an integer (real part) and s2 is a complex number (ii) ADD (s1, s2) – where s1 and s2 are complex numbers. #include #include class complex { int real, imag; public: void read(); void disp(); complex ADD(int a, complex); complex ADD(complex, complex); }; void complex::read() { cout << "Enter real part\n"; cin >> real; cout << "Enter imaginary part\n"; cin >> imag; } void complex::disp() { cout << "\t" << real << "+" << imag << "i" << "\n"; } complex complex::ADD(int a, complex s2) { s2.real = s2.real + a; return s2; } complex complex::ADD(complex s1, complex s2) { complex s3; s3.real = s1.real + s2.real; s3.imag = s1.imag + s2.imag;

Bangalore Institute Of Technology

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return s3; } int main() { clrscr(); complex s1, s2, s3; int a, ch; do { cout << "1.Adding a number to real part\n"; cout << "2.Adding two complex number\n"; cout << "3.Exit"; cout << "Enter your choice:\n"; cin >> ch; switch (ch) { case 1: cout << "Enter complex number\n"; s2.read(); cout << "Enter integer to add\n"; cin >> a; s3 = s2.ADD(a, s2); s3.disp(); break; case 2: cout << "Enter two complex numbers\n"; cout << "Enter first complex number\n"; s1.read(); cout << "Enter second complex number\n"; s2.read(); s3 = s2.ADD(s1, s2); s3.disp(); break; case 3: break; default: cout << "Invalid choice\n"; break; } } while (ch != 3); getch();

Bangalore Institute Of Technology

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return 0; } Output:

Bangalore Institute Of Technology

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3. Friend functions and friend classes: a) Write a program to define class name HUSBAND and WIFE that holds the income respectively. Calculate and display the total income of a family using Friend function. #include #include class wife; class husband { float incomeh; public: void read() { cout << "enter income husband\n"; cin >> incomeh; } friend void total(husband, wife); }; class wife { float incomew; public: void read() { cout << "enter income wife\n"; cin >> incomew; } friend void total(husband, wife); }; void total(husband h, wife w) { float sum; sum = h.incomeh + w.incomew; cout << "total income is " << sum; }

Bangalore Institute Of Technology

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int main() { clrscr(); husband h; h.read(); wife w; w.read(); total(h, w); getch(); return 0; }

Bangalore Institute Of Technology

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Output:

Bangalore Institute Of Technology

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18MCA16

b) Write a program to accept the student detail such as name and 3 different marks by get_data() method and display the name and average of marks using display() method. Define a friend class for calculating the average of marks using the method mark_avg(). #include using namespace std; class Student { private: char name[15]; float m1,m2,m3,avg; public: void getData(); friend class AVGMARKS; void showData(); }; class AVGMARKS { public: int getAvg(Student t) { t.avg = (t.m1 + t.m2 + t.m3) / 3.0; return t.avg; } }; void Student::getData() { cout << "Enter Student name : " ;

Bangalore Institute Of Technology

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cin >> name; cout << "Enter test marks of 3 Subjects :" << endl; cout << "Test1 = " ; cin >> m1; cout << "Test2 = " ; cin >> m2; cout << "Test3 = " ; cin >> m3; }

void Student::showData() { cout<<"--------------------------------------"<<endl; cout<> row; cout << "\nEnter number of coloumns\n"; cin >> col; } void mat::readmat() { int i, j; cout << "Enter mat elements\n"; for (i = 0; i < row; i++) for (j = 0; j < col; j++) cin >> a[i][j]; } int mat::operator==(mat m2) { if (row == m2.row && col == m2.col) return 1;

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else return 0; } mat mat::operator+(mat m2) { mat temp; int i, j; for (i = 0; i < row; i++) for (j = 0; j < col; j++) temp.a[i][j] = a[i][j] + m2.a[i][j]; temp.row = row; temp.col = col; return temp; } mat mat::operator-(mat m2) { mat temp; int i, j; for (i = 0; i < row; i++) for (j = 0; j < col; j++) temp.a[i][j] = a[i][j] - m2.a[i][j]; temp.row = row; temp.col = col; return temp; } ostream &operator<<(ostream &fout, mat &d) { for (int i = 0; i < d.col; i++) { for (int j = 0; j < d.col; j++) { fout << d.a[i][j]; cout << " "; } cout << endl; } return fout; } int main() { clrscr(); mat m1, m2, m3, m4;

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cout << "\nEnter order of first matrix:\n"; m1.readord(); cout << "\nEnter order of second matrix:\n"; m2.readord(); if (m1 == m2) { cout << "\nEnter the elements of first mat:\n"; m1.readmat(); cout << "\nEnter the elements of second mat:\n"; m2.readmat(); cout << "First matrix is\n"; cout << m1; cout << "\n Second matrix is\n"; cout << m2; m3 = m1 + m2; m4 = m1 - m2; cout << "Sum of 2 matrices are\n" << endl; cout << m3; cout << "Difference of 2 matrices are\n" << endl; cout << m4; } else cout << "mat sum and difference cannot be computed\n"; getch(); return 0; }

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Output:

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5. Write a program to create an HUMAN class with features as number of Head, Legs, Hands.(NOTE: Number of Head, Legs and Hands are of integer types) a. Create an object HUMAN1 using default constructor. (Default features to have 1 Head, 2 Legs and 2 Hands) b. Create an object HUMAN2 with customized inputs using Parameterized Constructor c. Create an object HUMAN3 using existing object HUMAN1 (Copy Constructor). d. All Humans die after their lifetime. (Destructor) #include #include #include<string.h>

class HUMAN { private: char name[30]; int head; int legs; int hands; public: HUMAN() { strcpy(name , "\n--man1--\n"); head = 1; legs = 2; hands = 2; }

HUMAN (int head, int legs, int hands) { strcpy(name , "\n--man2--\n"); this->head = head; this->legs = legs;

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this->hands = hands; }

HUMAN ( HUMAN &man) { strcpy(name , "\n--man3--\n"); head = man.head; legs = man.legs; hands = man.hands; }

~HUMAN() { cout << name << " is killed "<<endl; getch(); } void show() { cout << "head=" << head << endl << "legs=" << legs <<endl; cout << "hands=" << hands << endl; } };

void main() { HUMAN man1, man2(3,4,5), man3 = man1; cout << "Human1 values:"<< endl;

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cout << "--------------"<< endl; man1.show(); cout << "Human2 values:" << endl; cout << "--------------" << endl; man2.show(); } cout << "Human3 values:" <<endl; cout <<"--------------" <<endl; man3.show(); }

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Output:

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6. Demonstrate Simple Inheritance concept by creating a base class FATHER with data members SurName and BankBalance and creating a derived class SON, which inherits SurName and BankBalance feature from base class but provides its own feature FirstName and DOB. Create and initialize F1 and S1 objects with appropriate constructors and display the Father & Son details. (Hint : While creating S1 object, call Father base class parameterized constructor through derived class by sending values) #include #include class FATHER { char fname[20], dob[20]; protected: char surname[20]; float bal; public: FATHER(); void disp1(); }; FATHER::FATHER() { cout << "enter first name of father\n"; cin >> fname; cout << "enter sur name of father\n"; cin >> surname; cout << "enter date of birth of father\n"; cin >> dob; cout << "enter bank balance of father\n"; cin >> bal; } void FATHER::disp1() { cout << "FATHER FIRST NAME IS" << fname << "\n"; cout << "FATHER SUR NAME IS" << surname << "\n"; cout << "FATHER DATE OF BIRTH IS" << dob << "\n"; cout << "BANK BALANCE IS" << bal << "\n"; } class SON : public FATHER

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{ char fname[20], dob[20]; public: void read(); void disp(); }; void SON::read() { cout << "enter first name of son\n"; cin >> fname; cout << "enter date of birth of son\n"; cin >> dob; } void SON::disp() { cout << " name of son is" << fname << "\n"; cout << " sur name is" << surname << "\n"; cout << " son date of birth is" << dob << "\n"; cout << " son bank balance is" << bal << "\n"; } int main() { clrscr(); SON s; s.read(); s.disp1(); s.disp(); getch(); return 0; }

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Output:

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7. Create an abstract base class EMPLOYEE with data members: Name, EmpID and BasicSal and a pure virtual function Cal_Sal().Create two derived classes MANAGER (with data members: DA and HRA and SALESMAN (with data members: DA, HRA and TA). Write appropriate constructors and member functions to initialize the data, read and write the data and to calculate the net salary. The main() function should create array of base class pointers/references to invoke overridden functions and hence it implements run-time polymorphism. #include #include class employee { protected: char name[25]; int eid, bp; public: virtual void input() = 0; virtual void calsal() = 0; virtual void output() = 0; }; class manager : public employee { protected: float da, hra, dap, hrap, tax, gp, np; public: manager() { dap = 7; hrap = 5; tax = 500; } void input() { cout << "\n manager details\n"; cout << "Enter name id bp"; cin >> name >> eid >> bp; } void calsal()

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{ da = dap * bp; hra = hrap * bp; gp = da + hra + tax; np = gp - tax; } void output() { cout << "\nname\tda\tHRA\tgp\tbp\n"; cout << name << "\t" << da << "\t" << hra << "\t" << gp << "\t" << bp << "\n"; } }; class salesman : public employee { protected: float da, ta, hra, tap, dap, hrap, tax, gp, np; public: salesman() { tap = 5; dap = 7; hrap = 5; tax = 500; } void input() { cout << "\nsales man details\n"; cout << "enter name id bp\n"; cin >> name >> eid >> bp; } void calsal() { ta = tap * bp; da = dap * bp; hra = hrap * bp; gp = da + hra + tax; np = gp - tax; } void output()

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{ cout << "\n salesman details\n"; cout << "\nname\tDA\tHRA\tGP\tBP\n"; cout << name << "\t" << da << "\t" << hra << "\t" << gp << "\t" << bp << "\n"; } }; int main() { clrscr(); int m1, m2, i, j; cout << "\nEnter number of managers\n"; cin >> m1; cout << "\nEnter number of salesman\n"; cin >> m2; employee *p[25]; manager m[25]; salesman s[25]; for (i = 1; i <= m1; i++) { p[i] = &m[i]; p[i]->input(); p[i]->calsal(); } for (i = m1 + 1, j = 1; i <= m1 + m2; i++, j++) { p[i] = &s[j]; p[i]->input(); p[i]->calsal(); } cout << "\nmanager details\n"; for (i = 1; i <= m1; i++) { p[i]->output(); } for (i = m1 + 1; i <= m1 + m2; i++) { p[i]->output(); } getch();

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return 0; } Output:

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8. Write a program to implement FILE I/O operations on characters. I/O operations includes inputting a string, Calculating length of the string, Storing the string in a file, fetching the stored characters from it, etc. #include #include #include void write(ofstream &outfile) { int l=0; char str[50]; cout << "read str from user" << endl; cin.getline(str, 50); //reading the input using getline for (int i = 0; str[i] != '\0'; i++) l = i+1; cout << "\nlength of str=" << l; outfile << str; } void read(ifstream &infile) { char str[50]; cout << "\nread str from user" << endl; while (infile.eof()) { infile >> str; cout << str << " "; //display data on screen } } int main() { clrscr(); char str[50]; ofstream outfile; outfile.open("data.txt"); //open a file data.txt write(outfile); //display outfile.close(); //closing the file data.txt ifstream infile; infile.open("data.txt"); read(infile); infile.close();

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getch(); } Output:

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9. Write a program to implement Exception Handling with minimum 5 exceptions Classes including two built-in exceptions. #include

using namespace std;

class BagException { public: char *what() { return " Bag weight is exceeding 40 kg.. Not allowed "; } };

class AgeException { public: char *what() { return " Age is Less than 10 years..Not allowed to travel"; } };

class LuggageException { public: char *what() { return " No. of Luggage are exceeding 10..Not allowed"; } };

int main() { int bagWeight, age, luggageCount, seatNo; float cost;

cout << "Enter Bag weight :" << endl; cin >> bagWeight;

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cout << "Enter Passsenger Age :" << endl; cin >> age;

cout << "Enter number of Luggage Passenger has :" << endl; cin >> luggageCount;

cout << "Enter Seat No :" << endl; cin >> seatNo;

cout << "Enter Flight Cost Paid:" << endl; cin >> cost;

try { if (bagWeight > 40) throw BagException(); // throw exception of type BagException

if (age < 10) throw AgeException(); // throw exception of type AgeException

if (luggageCount > 10) throw LuggageException(); // throw exception of type LuggageException

if (seatNo < 5) throw seatNo; // throw exception of type int

if (cost < 0) throw cost; // throw exception of type float

cout << "Passenger can board the Plane ...";

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} catch (BagException e) { cout << "\nCaught an exception : " << endl; cout << e.what() << endl; } catch (AgeException e) { cout << "\nCaught an exception : " << endl; cout << e.what() << endl; } catch (LuggageException e) { cout << "\nCaught an exception : " << endl; cout << e.what() << endl; } catch (int seatNo) { cout << "\nCaught an exception :" << endl; cout << "Seat no below -" << seatNo << " are a reserved...." << endl; } catch (float price) { cout << "\nCaught an exception :" << endl; cout << "Cost : " << price << " is less than zero and Invalid...." << endl; } cout << "\n End";

return 0; }

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Output:

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10. a.Write a program to concatenate 2 strings using STL String class functions. #include #include <string.h> #include int main() { clrscr(); char s1[10], s2[10], s3[20]; cout << "Enter the string-1:"; cin >> s1; cout << "Enter the string-2:"; cin >> s2; cout << "Concatenation of two-string:"; strcpy(s3, s1); strcat(s3, s2); cout << s3; getch(); return 0; }

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Output:

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b) Write a simple C++ program to store and display integer elements using STL Vector class. #include #include using namespace std; int main () { vector v(5); int i; cout<<"size of a vector is "<
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Output:

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Note 1: In the practical Examination each student has to pick one question from PART-A and PART-B each. Note 2: Change of program is not permitted in the Practical Examination.

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