OOP Practical List

Sr No	Title	Remark
1	Implement a class Complex which represents the Complex Number data type. Implement the following operations : 1.       A constructor (including a default constructor which creates the complex number 0+0i). 2.       Overloaded operator+ to add two complex numbers. 3.       Overloaded operator+ to multiply two complex numbers. 4.       Overloaded << and >> to print and read Complex Numbers to do this, you will need to decide what you want your input and output format to look like.
2	Implement a class Quadratic that represents two degree polynomials i.e., polynomials of type ax2+bx+c. Your class will require three data members corresponding to a,b and c. Implement the following operations: 1.       A constructor (including a default constructor which creates the 0 polynomial). 2.       Overloaded operator+ to add two polynomials of degree 2. 3.       Overloaded << and >> to print and read polynomials. To do this, you will need to decide what you want your input and output format to look like. 4.       A function eval that computes the value of a polynomial for a given value of x. 5.       A function that computes the two solutions of the equation ax2+bx+c=0.
3	Write a program to create four-function calculator using C++. The Program should ask the user to enter a number, an operator, and another number.(use floating point.) It should then carry out the specified arithmetical operation: adding, subtracting, multiplying, or dividing the two numbers. Use a switch statement to select the operation. Finally, display the result. When it finishes the calculation, the program should ask whether the user wants to do another calculation. The response can be _y’ or _n’. some sample interaction with the program might look like this: Enter first number, operator, second number: 10/3 Answer=3.333333 Do another(y/n)?y Enter first number, operator, second number: 12+100 Answer=112 Do another(y/n)?y
4	Create student database with appropriate data members that should use the following features of object oriented programming in C++. Class, object, array of objects, new, delete, default constructor to initialize student class fields, parameterized constructor to set the values into the objects, access specifiers, this pointer.
5	Implement C++ program to write a class template to represent a generic vector. include following member functions : 1.       To create the vector 2.       To modify the value of a given element 3.       To multiply by a scalar value 4.       To display the vector in the form (10, 20, 30,…)
6	Imagine a publishing company that markets both book and audiocassette versions of its works. Create a class publications that stores the title (a string)  and price (type float) of a publication. From this class derive two classes: book, which adds a page count (type int), and tape, which adds a playing time in minutes (type float). Each of this three classes should have a getdata() function to get its data from the user at the keyboard, and a putdata() function to display its data. Write a main() program to test the book and tape classes by creating instances of them, asking the user to fill in data with getdata(), and then displaying the data which putdata().
7	Write a function in  C++ to count and display the number of lines not starting with alphabet ‘A’ present in a text file “STORY.TXT” Example: If the file “STORY.TXT” contains the following lines, The roses are red. The girl is playing there. There is a playground. An aero plane is in the sky. Numbers are not allowed in the password. The function should display the output as 3.
8	A book shop maintains the inventory of books that are being sold at the shop. The list includes details such as another , title, price, publisher and stock position. Whenever a customer wants a book, the sales person inputs the title and another and the system searches the list and displays whether it is available or not. If it is not, appropriate message is displayed. If it is, then the system displays the book details and requests for the number of copies required. If the requested copies book details and requests for the number of copies required. If the requested copies are available, the total cost of the requested copies is displayed; otherwise the message –Required copies not in stock” is displayed. Design a system using a class called books with suitable member functions and constructors. Use new operator in constructors to allocate memory space required. Implemenent C++ program for the system.
9	Create employee bio-data using following classes  i) Personal record  ii) Professional record  iii)Academic record . Assume appropriate  data members and member function to accept required data and bio-data. Create bio-data using multiple inheritance using C++ .
10	Create user defined exception to check the following condition and throw the exception if the criterion does not met. a.       User as age between 18 and 55 b.      User stays has income between Rs. 50000-Rs.100000 per month c.       User stays in Pune /Mumbai /Bangalore /Chennai d.      User has 4 –wheeler Accept age , income, city, vehicle from the user and check for the condition mentioned  above. If any of the condition not met then throw the exception.
11	Write a menu driven program that will create data file containing the list of telephone in the following form John 23456 Ahmed 9876 ………… …….. Use a class object to store each set of data, access the file created an implement the following tasks I.                    Determine the telephone number of specified person II.                  Determine the name if telephone number is known III.                Update the telephone number, whenever there is change.
12	Write a C++ program that creates an output file, writes information to it, closes the file and open it again as an input file and read the information from the file.
13	Using standard template library (STL) list container implement following member functions of list class: empty, insert, merge, reverse, sort, unique using iterator.
14	Writ a function template selection sort. Write a program that inputs, sorts and outputs an int array and a float array.
15	Design an E-mail verifier which accepts the email address from the user. Depending upon the input given by user display appropriate result. Use the following concepts in the project- Constructor, Destructor, new,  delete, exceptional  handling, string handling functions,  etc.

PR: 03 Write a program to create four-function calculator using C++

Write a program to create four-function calculator using C++. The Program should ask the user to enter a number, an operator, and another number.(use floating point.) It should then carry out the specified arithmetical operation: adding, subtracting, multiplying, or dividing the two numbers. Use a switch statement to select the operation. Finally, display the result. When it finishes the calculation, the program should ask whether the user wants to do another calculation. The response can be _y’ or _n’. some sample interaction with the program might look like this:

Enter first number, operator, second number: 10/3

Answer=3.333333

Do another(y/n)?y

Enter first number, operator, second number: 12+100

Answer=112

Do another(y/n)?y


Program: 
#include<iostream>
#include<stdlib.h>
#include<math.h>
using namespace std;
class calc
{
float a,b,result;
char op;
public:
void operation()
{
cout<<"\n Enter expression(First number operator second number):";
cin>a>>op>>b;
switch(op)
{
case'+':
result=a+b:
cout<<"\n Result: "<<result;
break;
case'-':
result=a-b;
cout<<"\n Result: "<<result;
break;
case'*':
result=a*b;
cout<<"\n Result: "<<result;
break;
case'/':
result=a/b;
cout<<"\n Result: "<<result;
break;
}
}
};
int main()
{
calc c;
char ch;
 cout<<"\n  calculator";
do
{
c.operation();
cout<<"\n Do you want to perform another operation (y/n): ";
cin>>ch;
}while(ch=='y'|ch=='Y');
return 0;
}