ComputerEngineeringPrograms: SE Comp (2015 Course) Object Oriented Programming Lab Assignments.

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LIST OF ASSIGNMENTS

A-1(Compulsory)

Install, Configure 64 bit Linux Operating Systems, study basic architecture, memory system, and learn basic administration.

Group A

2. Implement a class Complex which represents the Complex Number data type. Implement the following operations: 1. 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.

3. Implement a class Quadratic that represents degree two polynomials i.e., polynomials of type ax2+bx+c. The 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.

4. Implement a class CppArray which is identical to a one-dimensional C++ array (i.e., the index set is a set of consecutive integers starting at 0) except for the following : 1. It performs range checking. 2. It allows one to be assigned to another array through the use of the assignment operator (e.g. cp1= cp2) 3. It supports a function that returns the size of the array. 4. It allows the reading or printing of array through the use of cout and cin.

5. Write a C++ program create a calculator for an arithmetic operator (+, -, *, /). The program should take two operands from user and performs the operation on those two operands depending upon the operator entered by user. Use a switch statement to select the operation. Finally, display the result. 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)? n

6. Develop an object oriented program in C++ to create a database of student information system containing the following information: Name, Roll number, Class, division, Date of Birth, Blood group, Contact address, telephone number, driving license no. etc Construct the database with suitable member functions for initializing and destroying the data viz constructor, default constructor, Copy constructor, destructor, static member functions, friend class, this pointer, inline code and dynamic memory allocation operators-new and delete.

7. Create a class template to represent a generic vector. Include following member functions: · To create the vector. · To modify the value of a given element · To multiply by a scalar value · To display the vector in the form (10,20,30,…)

8. Create a class Rational Number (fractions) with the following capabilities: a) Create a constructor that prevents a 0 denominator in a fraction, reduces or simplifies fractions that are not in reduced form and avoids negative denominators. b) Overload the addition, subtraction, multiplication and division operators for this class. c) Overload the relational and equality operators for this class.

9. Imagine a publishing company which does marketing for book and audiocassette versions. Create a class publication 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). Write a program that instantiates the book and tape classes, allows user to enter data and displays the data members. If an exception is caught, replace all the data member values with zero values.

10. 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. A girl is playing there. There is a playground. An aeroplane is in the sky. Numbers are not allowed in the password. The function should display the output as 3.

11. Write C++ Program with base class convert declares two variables, val1 and val2, which hold the initial and converted values, respectively. It also defines the functions getinit( ) and getconv( ), which return the initial value and the converted value. These elements of convert are fixed and applicable to all derived classes that will inherit convert. However, the function that will actually perform the conversion, compute( ), is a pure virtual function that must be defined by the classes derived from convert. The specific nature of compute( ) will be determined by what type of conversion is taking place.

12. A book shop maintains the inventory of books that are being sold at the shop. The list includes details such as author, title, price, publisher and stock position. Whenever a customer wants a book, the sales person inputs the title and author and the system searches the list and displays whether it is available or not. If it is not, an 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. Implement C++ program for the system.

13. 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 & print bio-data. Create bio-data using multiple inheritance using C++.

Group B

14. Crete User defined exception to check the following conditions and throw the exception if the criterion does not meet. a. User has age between 18 and 55 b. User stays has income between Rs. 50,000 – Rs. 1,00,000 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 conditions mentioned above. If any of the condition not met then throw the exception.

15. Write a menu driven program that will create a data file containing the list of telephone numbers in the following form John 23456 Ahmed 9876 ……….. ……… Use a class object to store each set of data, access the file created and 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 a change.

16. 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.

17. Write a C++ program using command line arguments to search for a word in a file and replace it with the specified word. The usage of the program is shown below. $ change <old word> <new word> <file name>

18. Write a function template selection Sort. Write a program that inputs, sorts and outputs an integer array and a float array.

19. You are the owner of a hardware store and need to keep an inventory that can tell you what different tools you have, how many of each you have on hand and the cost of each one. Write a program that initializes the random-access file hardware.dat to 100 empty records, lets you input the data concerning each tool, enables you to list all your tools, lets you delete a record for a tool that you no longer have and lets you update any information in the file. The tool identification number should be the record number. Use the following information to start your file: Record # Tool name Quantity Cost 3 Electric sander 7 57.98 17 Hammer 76 11.99 24 Jig saw 21 11.00 39 Lawn mower 3 79.50 56 Power saw 18 99.99

Group C

20. Write C++ program using STL for implementation of Singly, doubly and circular linked list.

21. Write C++ program using STL for implementation of stack & queue using SLL

22. Write C++ program using STL to add binary numbers (assume one bit as one number); use STL stack.

23. Write C++ program using STL for Dqueue (Double ended queue)

24. Write C++ program using STL for Sorting and searching with user-defined records such as Person Record (Name, birth date, telephone no), item record (item code, item name, quantity and cost)

*********************************For Reference*************************************

/*****************************************************
ASSIGNMENT NO: 2

Implement a class Complex which represents the Complex Number data type.

Implement the following operations:
1. 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.

*****************************************************/

#include<iostream> //including header files

using namespace std; //declaring the scope of program

class complex //class name "complex"
{
public:
float real,img; //declared variable of type float

complex() //default constructor
{
}
complex operator+ (complex);
complex operator* (complex);
friend ostream &operator<<(ostream &,complex&);
friend istream &operator<<(istream &,complex&);
};

complex complex:: operator + (complex obj)
{
complex temp;
temp.real=real+obj.real;
temp.img=img+obj.img;
return (temp);
}
istream &operator >> (istream &is,complex &obj)
{
is>>obj.real;
is>>obj.img;
return is;
}
ostream &operator<<(ostream &outt,complex &obj)
{
outt<<""<<obj.real;
outt<<"+"<<obj.img<<"i";
return outt;
}
complex complex :: operator * (complex obj)
{
complex temp;
temp.real=real*obj.real-img*obj.img;
temp.img=real*obj.img+img*obj.real;
return (temp);
}

int main()
{
complex a,b,c,d;
cout<<"\nEnter first complex number\n";
cout<<"\nEnter real and imaginary:\t";
cin>>a;
cout<<"Enter second complex number \n";
cout<<"\nEnter real and imaginary:\t";
cin>>b;
cout<<"\n\tArithmetic operations";
c=a+b;
cout<<"\n\tAddition =";
cout<<c;
d=a*b;
cout<<"\n\tMultiplication=";
cout<<d;
cout<<endl;
return 0;

}

/************************************************
OUTPUT:

gescoe@hadoopmaster:~/Desktop$ g++ aaa.cpp
gescoe@hadoopmaster:~/Desktop$./a.out

Enter first complex number

Enter real and imaginary: 5
5
Enter second complex number

Enter real and imaginary: 5
5

Arithmetic operations
Addition =10+10i
Multiplication=0+50i

************************************************/

--------------------------------------------------------------------------------------------------------------------------

/************************************************************

Assignment Number A:-5

Write a C++ program create a calculator for an arithmetic operator (+, -, *, /). The program

should take two operands from user and performs the operation on those two operands

depending upon the operator entered by user. Use a switch statement to select the operation.

Finally, display the result.

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)? n

*************************************************************/

#include<iostream> //including header files

using namespace std; //standard library

int main() //initializing main function

{

char c; //variable declearation

float n1,n2;

cout<<"Enter the operation to be perform\n +\t-\t*\t/\t";//operation to be performed

cin>>c;

cout<<"Enter first number:\t"; //printing first number

cin>>n1; //scaning first number

cout<<"Enter second number:\t"; //printing second number

cin>>n2; //scaning second number

switch (c) //using switch case

{

case'+':cout<<n1+n2<<"\n";

break;

case'-':cout<<n1-n2<<"\n";

break;

case'*':cout<<n1*n2<<"\n";

break;

case'/':cout<<n1/n2<<"\n";

break;

default: cout<<"Enter your valid choice";

}

return 0;

}

/******************************************************

OUTPUT:-

gescoe@hadoopslave1:~/Desktop$ g++ assignment1.cpp

gescoe@hadoopslave1:~/Desktop$ ./a.out

Enter the operation to be perform

+ - * /

Enter first number: 5

Enter second number: 5

gescoe@hadoopslave1:~/Desktop/kunal$ ./a.out

Enter the operation to be perform

+ - * /

Enter first number: 10

Enter second number: 5

gescoe@hadoopslave1:~/Desktop/kunal$ ./a.out

Enter the operation to be perform

+ - * /

Enter first number: 11

Enter second number: 5

gescoe@hadoopslave1:~/Desktop/kunal$ ./a.out

Enter the operation to be perform

+ - * /

Enter first number: 25

Enter second number: 5

*******************************************************/

--------------------------------------------------------------------------------------------------------------------------

/*********************************************************************************

Assignment no : A7

Title : Implement C++ program to write a class template to represent a generic

vector. Include following member functions:

To create the vector.

To modify the value of a given element

To multiply by a scalar value

To display the vector in the form (10,20,30,...)

*********************************************************************************/

#include<iostream> // ANSI standard header file

#include<vector>

using namespace std; //declared scope of program

void display (vector<int>&v) //function declaration

{

for(int i=0;i<v.size();i++)

{

cout<<" "<<v[i];

}

cout<<" \n";

}

int main() // main function

{

vector<int> v;

cout<<"\n Initial Size: "<<v.size();

int x;

cout<<"\n Enter The 5 Element: ";

for(int i=0;i<5;i++)

{

cin>>x;

v.push_back(x);

}

cout<<"\n Size After Insertion: "<<v.size();

cout<<"\n Vector Element: ";

display(v);

cout<<"\nVector Element After insertion of 3 at End of Vector: ";

v.push_back(3);

display(v);

vector<int>::iterator itr=v.begin();

itr=itr+3;

v.insert(itr,9);

cout<<"\n Content After Insertion 9 at position 3rd: ";

display(v);

v.erase(v.begin()+3,v.begin()+5);

cout<<"\n After Erasing(3rd-4th position): ";

display(v);

}

/*=============================OUTPUT===============================================

gescoe@hadoopmaster:~/Desktop/g++ Assignment7.cpp

gescoe@hadoopmaster:~/Desktop/./a.out

Initial Size: 0

Enter The 5 Element: 5 4 3 2 1

Size After Insertion: 5

Vector Element: 5 4 3 2 1

Vector Element After insertion of 3 at End of Vector: 5 4 3 2 1 3

Content After Insertion 9 at position 3rd: 5 4 3 9 2 1 3

After Erasing(3rd-4th position): 5 4 3 1 3

=================================================================================*/

--------------------------------------------------------------------------------------------------------------------------

/***********************************************************************************************

ASSIGNMENT NO:A-6

TITLE : Develop an object oriented program in C++ to create a database of student information system containing the following information: Name, Roll number, Class, division, Date of Birth, Blood group, Contact address, telephone number, driving license no. etc Construct the database with suitable member functions for initializing and destroying the data viz constructor, default constructor, Copy constructor, destructor, static member functions, friend class, this pointer, inline code and dynamic memory allocation operators-new and delete.

*********************************************************************/

using namespace std;

#include<iostream>

#include<string.h> //for handling string eg.strcpy()

#include<ctime> //current date and time of system

class person

{

private:

char *name,*blood,*address; //declared data variable

int dob;

long int insurance,tel,license;

float height,weight;

static int count; //static variables

public:

person() //default & dynamic constructor

{

count++;

cout<<"-----------------default information------------";

name=new char[13]; //allocate dynamic memory using new operator

strcpy(name,"default name");

blood=new char[3];

strcpy(blood,"O+");

address=new char[20];

strcpy(address,"Nasik");

insurance=542451;

tel=+45876112;

license=19122013;

height=5.5;

weight=100;

dob=1998;

display();

}

person(char n[],char b[],int yy,char add[],float w,

long int in,long int tn,long int ln,float h) //parameterized constructor

{

count++;

int len;

len=strlen(n);

name=new char[len+1];

strcpy(name,n);

len=strlen(b);

blood=new char[len+1];

strcpy(blood,b);

len=strlen(add);

address=new char[len+1];

strcpy(address,add);

dob=yy;

insurance=in;

tel=tn;

license=ln;

height=h;

weight=w;

}

void display(); //display function declaration

static int displaycount() //static member function

{

cout<<"\n NUMBER OF ENTRIES ARE:"<<count<<endl;

}

~person() //destructor having same name like construct

{

cout<<"\n destructor called...";

}

};

int person::count=0;

void person::display() //display function definition

{

cout<<"\n PERSON NAME:"<<name;

cout<<"\n BLOOD GROUP:"<<blood;

cout<<"\n DATE OF BIRTH:"<<dob;

cout<<"\n CONTACT ADDRESS:"<<address;

cout<<"\n INSURANCE NUMBER:"<<insurance;

cout<<"\n TELEPHONE NUMBER:"<<tel;

cout<<"\n LICENSE NUMBER:"<<license;

cout<<"\n HEIGHT:"<<height;

cout<<"\n WEIGHT:"<<weight<<endl;

}

int main()//initializing main function

{

int ch; //variable declaration

person *p[20],*temp;

char pname[15],pblood[5],paddress[20];

long int pinsurance,ptel,plicense;

float pheight,pweight;

int cnt=0,dd;

{

cout<<"\n --------MENU--------"<<endl;

cout<<"\n 1.DEFAULT CONSTRUCTER ";

cout<<"\n 2.PARAMETERIZED CONSTRUCTOR";

cout<<"\n 3.NUMBER OF ENTRIES";

cout<<"\n 4.DISPLAY";

cout<<"\n 5.EXIT";

cout<<"\n ENTER THE CHOICE:";

cin>>ch;

switch(ch)

{

case 1: //DEFAULT CONSTRUCTER INFORMATION

p[cnt]=new person();

cnt=cnt+1;

break;

case 2: //PARAMETERIZED CONSTRUCTOR INFORMATION

cout<<"\n ENTER THE PERSON NAME:";

cin>>pname;

cout<<"\n ENTER THE PERSON BLOOD GROUP:";

cin>>pblood;

cout<<"\n ENTER DATE OF BIRTH:";

cin>>dd;

cout<<"\n ENTER THE PERSON CONTACT ADDRESS:";

cin>>paddress;

cout<<"\n ENTER THE PERSON INSURANCE NUMBER:";

cin>>pinsurance;

cout<<"\n ENTER THE PERSON TELEPHONE NUMBER:";

cin>>ptel;

cout<<"\n ENTER THE PERSON LICENSE NUMBER:";

cin>>plicense;

cout<<"\n ENTER THE PERSON HEIGHT:";

cin>>pheight;

cout<<"\n ENTER THE PERSON WEIGHT:";

cin>>pweight;

p[cnt]=new person(pname,pblood,dd,paddress,pinsurance,ptel,plicense,pheight,pweight);

cnt=cnt+1;

break;

case 3: //NUMBER OF ENTRIES INFORMATION

person::displaycount();

break;

case 4:

for(int i=0;i<cnt;i++)

{

p[i]->display();

}

break;

case 5:

return 0;

}

} while(ch!=4);

}

/**************************************************************

OUTPUT:-

gescoe@hadoopmaster:~/Desktop$ g++ Assignment6.cpp

gescoe@hadoopmaster:~/Desktop$ ./a.out

---------------------------MENU--------------------------

1.DEFAULT CONSTRUCTER

2.PARAMETERIZED CONSTRUCTOR

3.NUMBER OF ENTRIES

4.DISPLAY

5.EXIT

ENTER THE CHOICE:1

-----------------default information------------

PERSON NAME:default name

BLOOD GROUP:O+

DATE OF BIRTH:1998

CONTACT ADDRESS:Nasik

INSURANCE NUMBER:542451

TELEPHONE NUMBER:45876112

LICENSE NUMBER:19122013

HEIGHT:5.5

WEIGHT:100

---------------------------MENU--------------------------

1.DEFAULT CONSTRUCTER

2.PARAMETERIZED CONSTRUCTOR

3.NUMBER OF ENTRIES

4.DISPLAY

5.EXIT

ENTER THE CHOICE:2

ENTER THE PERSON NAME:KUNAL

ENTER THE PERSON BLOOD GROUP:O+

ENTER DATE OF BIRTH:1996

ENTER THE PERSON CONTACT ADDRESS:Dhule

ENTER THE PERSON INSURANCE NUMBER:4785669

ENTER THE PERSON TELEPHONE NUMBER:+613994152

ENTER THE PERSON LICENSE NUMBER:181162013

ENTER THE PERSON HEIGHT:5.8

ENTER THE PERSON WEIGHT:75

---------------------------MENU--------------------------

1.DEFAULT CONSTRUCTER

2.PARAMETERIZED CONSTRUCTOR

3.NUMBER OF ENTRIES

4.DISPLAY

5.EXIT

ENTER THE CHOICE:3

NUMBER OF ENTRIES ARE:2

---------------------------MENU--------------------------

1.DEFAULT CONSTRUCTER

2.PARAMETERIZED CONSTRUCTOR

3.NUMBER OF ENTRIES

4.DISPLAY

5.EXIT

ENTER THE CHOICE:4

PERSON NAME:KUNAL

BLOOD GROUP:O+

DATE OF BIRTH:1996

CONTACT ADDRESS:Dhule

INSURANCE NUMBER:613994152

TELEPHONE NUMBER:181162013

LICENSE NUMBER:5

HEIGHT:75

WEIGHT:4.78567e+06

---------------------------MENU--------------------------

1.DEFAULT CONSTRUCTER

2.PARAMETERIZED CONSTRUCTOR

3.NUMBER OF ENTRIES

4.DISPLAY

5.EXIT

ENTER THE CHOICE:5

**************************************************************/

--------------------------------------------------------------------------------------------------------------------------

/*******************************************************************

Write a function in C++ to count and display the number of lines not starting with alphabet 'A' present in a text file "STORY1.TXT".

Example:

If the file "STORY1.TXT" contains the following lines,

1 The rose is red.

2 A girl is playing there.

3 There is a playground.

4 An aeroplane is in the sky.

5 Numbers are not allowed in the password.

*********************************************************************/

#include<iostream> //ANSI standard header file

#include<fstream> // header file

using namespace std; //declared scope of the program

int main()

{

ifstream fin; //fin object created

fin.open("STORY1.TXT"); //open method

char str[100]; //lenth of string

int count=-1; //count initialized by zero

while(!fin.eof())

{

fin.getline(str,100);

if(str[0]!='A') //first position of line is not equal to 'A'

count++;

}

cout<<"Number of lines not starting with A are" <<"\t" <<count <<"\n";

fin.close(); //close method to close the file

return 0;

}

/*********************************************************************

OUTPUT

gescoe@hadoopmaster:~/Desktop$ g++ assign3.cpp

gescoe@hadoopmaster:~/Desktop$ ./a.out

Number of lines not starting with A are 3

*********************************************************************/

-------------------------------------------------------------------------------------------------------------------------

/*************************************************************************
ASSIGNMENT NO: B-14
TITLE:- Crete User defined exception to check the following conditions
and throw the exception if thecriterion does not meet.
a. User has age between 18 and 55
b. User stays has income between Rs. 50,000 â€“ Rs. 1,00,000 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 conditions mentionedabove. If any of the
condition not met then throw the exception.

**************************************************************************/

#include<iostream> //standard input output header file
#include<stdexcept> //for handling exception
#include<typeinfo> //for variable datatype identification
#include<string> //string comparison purpose
#include<cstring> //for string manipulation in c/c++ for various fun. and array

using namespace std;

int main()
{
int i,n,age; //variable declaration
char car;
double income;
char city[20];

cout<<"\n Enter Age of person:";
cin>>age;
try
{
if(age<18||age>55)
throw runtime_error("\n Age is not between 18-55");
}
catch(const exception& e)
{
cout<<"Caught exception:"<<e.what()<<'\n';
}

cout<<"\n Enter income of person:";
cin>>income;
try
{
if(income<50000||income>100000)
throw runtime_error("\n Income is not int the range of 50000-100000");
}
catch(const exception& e)
{
cout<<"Caught exception:"<<e.what()<<'\n';
}

cout<<"\n Enter city of person:";
cin>>city;
try
{
if(strcmp(city, "Pune")&& strcmp(city, "Banglore")&& strcmp(city,"Chennai")&& strcmp(city, "Mumbai"))
throw runtime_error("\n Person is not staying in Pune/Mumbai/Banglore/Chennai");
}
catch(const exception& e)
{
cout<<"Caught exception:"<<e.what()<<'\n';
}

cout<<"\n Whether person holds car or not? (y/n):";
cin>>car;
try
{
if(car=='n')
throw runtime_error("\n Person should hold car");
}
catch(const exception& e)
{
cout<<"Caught exception:"<<e.what()<<'\n';
}

cout<<"\n Information of person is as follows:";
cout<<"\n Age:"<<age;
cout<<"\n Income:"<<income;
cout<<"\n Location:"<<city;
cout<<"\n Holding car or not?:"<<car;

return 0;
}
/*************************************************************
OUTPUT:-
gescoe@hadoopmaster:~/Desktop$ g++ Assignment14.cpp
gescoe@hadoopmaster:~/Desktop$ ./a.out

Enter Age of person:50

Enter income of person:60000

Enter city of person:Mumbai

Whether person holds car or not? (y/n):y

Information of person is as follows:
Age:50
Income:60000
Location:Mumbai
Holding car or not?:y
**************************************************************/
--------------------------------------------------------------------------------------------------------------------------
/***********************Problem Statement******************************************
Assignment no:GroupB:15
Write a menu driven program that will create a data file containing the list of telephone numbers in the following form
John 23456
Ahmed 9876
........... .........
Use a class object to store each set of data, access the file created and 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 a change.

*******************************************************************/

#include<iostream> //invoke standard input/output libraries
#include<fstream> //invokes standard classes functions to read/write from/to the file
#include<string.h> //invokes standard string libraries
#include<iomanip> //invokes library functions to perform input/output manipulations
using namespace std; //invokes standard library functions

class person
{ //creation of class
public: //use of public access specifier
char name[10]; //declaration of variables
int phno;
void input_data() //creation of function
{
cout<<"\nEnter Name: "; //definition of function
cin>>name;
cout<<"\nEnter telephone number: ";
cin>>phno;
} //termination of function
void put_data()
{ //function definition
cout<<setw(20)<<name<<setw(10)<<phno<<endl; //setw() function allows i/o manipulations
}
}; //termination of class

int main()
{ //opening of main() function
person rec; //creating object
int phone, pos, ch, offset, i; //declaration of int variables
char nm[10];
char ans; //declaration of char variables
fstream fp; //creating object of class fstream
ifstream in; //creating object of class ifstream
ofstream out; //creating object of class ofstream
do
{ //opening of do-while loop
cout<<"\n\t\tMain Menu"; //display menu
cout<<"\n1.Read file\n2.Write file";
cout<<"\n3.Determine name if telephone no. is specified";
cout<<"\n4.Determine telephone no. if name is specified";
cout<<"\n5.Update telephone number";
cout<<"\nEnter your choice: ";
cin>>ch; //read choice
switch(ch)
{ //opening of switch case
case 1 :
in.open("test.txt", ios::in | ios::binary); //open file in integer & binary mode
cout<<"\nThe contents of file are: "; //displaying file contents
while(in.read((char *)&rec, sizeof(rec))) //standard read function read(memory block, size block)
{
rec.put_data(); //function call
}
in.close(); //file closing function
break;

case 2 :
rec.input_data(); //function call
char ch;
cin.get(ch); //call get()
out.open("test.txt", ios::out | ios::app | ios::binary ); //open file in binary mode
out.write((char *)&rec, sizeof(rec)); //standard write function write(memory block, size block)
out.close(); //file closing function
break;

case 3 :
cout<<"\nEnter telephone no.: ";
cin>>phone; //read phone
fp.open("test.txt", ios::ate | ios::in | ios::out | ios:: binary); //open file in int & binary mode
fp.seekg(0, ios::beg); //seekg() used to set the offset & refernce pointer
//here offset is 0 & reference pointer points to the beginning
pos=-1; i=0;
while(fp.read((char *)&rec, sizeof(rec))) //standard read function read(memory block, size block)
{ //opening of while loop
if(phone==rec.phno)
{ //opening of if statement
pos=i;
break;
} //closing of if statement
i++;
} //termination of while loop
offset=pos*sizeof(rec); //setting of offset
fp.seekp(offset); /seekp() used to get pointer of specific location for writing into file
fp.read((char *)&rec, sizeof(rec)); //standard read function read(memory block, size block)
cout<<"\nName is: "<<rec.name; //display name
fp.close(); //file closing function
break;

case 4 :
cout<<"\nEnter name: ";
cin>>nm; //read nm
fp.open("test.txt", ios::ate | ios::in | ios::out | ios:: binary); //open file in int & binary mode
fp.seekg(0, ios::beg); //seekg() used to set the offset & reference pointer
//here offset is 0 & reference pointer points to the beginning
pos=-1; i=0;
while(fp.read((char *)&rec, sizeof(rec))) //standard read function read(memory block, size block)
{ //opening of while loop
if((strcmp(nm,rec.name))==0)
{ //opening of if statement
pos=i;
break;
} //closing of if statement
i++;
} //termination of while loop
offset=pos*sizeof(rec); //setting of offset
fp.seekp(offset); //seekp() used to get pointer of specific location for writing into file
fp.read((char *)&rec, sizeof(rec));
cout<<"\nTelephone number is: "<<rec.phno;
fp.close(); //closing of file
break;

case 5 :
cout<<"\nEnter name: ";
cin>>nm; //read nm
fp.open("test.txt", ios::ate | ios::in | ios::out | ios:: binary); //open file in int & binary mode
fp.seekg(0, ios::beg); //seekg() used to get pointer of specific location
//ios::beg is flag for beginning location
pos=-1; i=0;
while(fp.read((char *)&rec, sizeof(rec))) //standard read function read(memory block, size block)
{
if((strcmp(nm,rec.name))==0) //compare name using string function
{ //opening of if statement
pos=i;
break;
} //closing of if statement
i++;
} //closing of while loop
offset=pos*sizeof(rec); //setting of offset
fp.seekp(offset); //seekp() used to get pointer of specific location for writing into file
cout<<"\nCurrent phone no.: "<<rec.phno;
cout<<"\nEnter new phone no.: ";
cin>>phone; //read new phone no.
rec.phno=phone;
fp.write((char *)&rec, sizeof(rec))<<flush; //flush is used to clear the previous data
cout<<"\nRecord is updated";
fp.seekg(0); //seekg() used to get pointer of specific location
while(fp.read((char *)&rec, sizeof(rec))) //standard read function read(memory block, size block)
{
rec.put_data(); //function call
}
fp.close(); //file closing function
break;
} //termination of switch case
cout<<"\nDo you want to continue ? ";
cin>>ans; //read ans
}while(ans=='y' || ans =='Y'); //termination of do-while loop
return 0;
} //termination of main() function

/*********************Output***************************************************
student@student-OptiPlex-3020:~$ cd Desktop
student@student-OptiPlex-3020:~/Desktop$ g++ grpb.cpp
student@student-OptiPlex-3020:~/Desktop$ ./a.out

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 1

The contents of file are:
Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 2

Enter Name: Mina

Enter telephone number: 1234

Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 2

Enter Name: Rina

Enter telephone number: 5678

Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 1

The contents of file are: Mina 1234
Rina 5678

Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 3

Enter telephone no.: 1234

Name is: Mina
Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 4

Enter name: Rina

Telephone number is: 5678
Do you want to continue ? y

Main Menu
1.Read file
2.Write file
3.Determine name if telephone no. is specified
4.Determine telephone no. if name is specified
5.Update telephone number
Enter your choice: 5

Enter name: Mina

Current phone no.: 1234
Enter new phone no.: 9010

Record is updated Mina 9010
Rina 5678

Do you want to continue ? n
student@student-OptiPlex-3020:~/Desktop$
*/

-------------------------------------------------------------------------------------------------------------------------
/*************************************************************************
Write a C++ program that creates an output employee, writes information to it, closes the employee and
open it again as an input employee and read the information from the employee.

**************************************************************************/

#include <iostream>
#include <fstream>

using namespace std;

class employee
{
char name[20];
int emp_id;
float salary;
public:
void accept()
{
cin>>name;
cin>>emp_id;
cin>>salary;
}

void display()
{
cout<<"\n"<<name<<"\t"<<emp_id<<"\t"<<salary;
}
};

int main()
{
employee o[5];
fstream f;
int i,n;

f.open("input.txt"); //create employee
cout<<"\n How many employee information wanted to store:";

cin>>n;
cout<<"\n Enter information of 3 employees (Enter name, emp_id, salary)";
for(i=0;i<n;i++)
{
cout<<"\n Enter information of "<<i<<" employee";
o[i].accept(); //accept input from user
f.write((char *)&o[i], sizeof(o[i])); //write object in employee
}
f.close();

f.open("input.txt", ios::in);
cout<<"\n Information of employee is as follows";
for(i=0;i<n;i++)
{
f.read((char*)&o[i], sizeof(o[i])); //read data from employee
o[i].display();
}
f.close();

return 0;

}

/******************************OUTPUT*****************************************
srl@srl-Lenovo-G550:~/Desktop/OOPL$ g++ b16.cpp
srl@srl-Lenovo-G550:~/Desktop/OOPL$ ./a.out

How many employee information wanted to store:3

Enter information of 3 employees (Enter name, emp_id, salary)
Enter information of 0 employeea
1
100

Enter information of 1 employeeb
2
200

Enter information of 2 employeec
3
300

Information of employee is as follows
a 1 100
b 2 200
c 3 300
*/

--------------------------------------------------------------------------------------------------------------------------

/****************************************************

Assignment No:- 18

Write a function template selection Sort. Write a program that inputs, sorts and outputs aninteger array and a float array.

*****************************************************/

#include<iostream> //including header files

#define size 10

using namespace std; //standard library

int n;

template<class T> //template class

void selection(T A[size]) //function declearation

{

int i,j,min;

T temp;

for(i=0;i<=n-2;i++)

{ min=i;

for(j=i+1;j<=n-1;j++)

{ if(A[j]<A[min])

min=j;

}

temp=A[i];

A[i]=A[min];

A[min]=temp;

}

cout<<"\n The sorted list is:...\n"; //printing sorted array of integer & float nos.

for(i=0;i<n;i++)

cout<<"\t"<<A[i];

}

int main() //initializing main function

{

int i,A[size]; //declear variable of type integer

float B[size]; //declear variable of type float

cout<<"\n\t\tSelection Sort\n";

cout<<"\n\tHandling Interger Elements\n";

cout<<"\nHow Many Elements Are There???\n";

cin>>n;

cout<<"\nEnter the integer numbers";

for(i=0;i<n;i++)

cin>>A[i]; //scanning array of integer nos

selection(A);

cout<<"\n\t\tHandling Float Elements\n";

cout<<"\nHow Many Elements Are There???\n";

cin>>n;

cout<<"\n Enter the Float numbers";

for(i=0;i<n;i++)

cin>>B[i]; //scanning array of float nos

selection(B);

cout<<"\n";

return 0;

}

/********************************************************

OUTPUT:-

gescoe@hadoopmaster:~/Desktop$ g++ Assignment18.cpp

gescoe@hadoopmaster:~/Desktop$ ./a.out

Selection Sort

Handling Interger Elements

How Many Elements Are There???

Enter the integer numbers10

The sorted list is:...

5 10 53 87 99

Handling Float Elements

How Many Elements Are There???

Enter the Float numbers10.10

99.99

53.53

5.5

87.78

The sorted list is:...

5.5 10.1 53.53 87.78 99.99

*********************************************************/

-------------------------------------------------------------------------------------------------------------------------

/*********************************************************

ASSIGNMENT NO:- C23

Write C++ program using STL for Dqueue (Double ended queue)

*********************************************************/

#include<deque> // Header that defines the deque container class

#include<stdio.h> //standard input output header file

#include<iostream> //standard input output stream header file

using namespace std; //Decleared scope of the program

int main() //main function starts

{

deque <int>dq; //creates deque

deque <int>::iterator p;//iterator is an object that enables a programmer to traverse contents of container

char cc; //variable declearation

int val,ch;

do //do while loop starts

{

cout<<"\n\nMENU:";

cout<<"\n1. Enter element at front\n";

cout<<"\n2. Enter element at Rear \n";

cout<<"\n3. Delet element at front\n";

cout<<"\n4. Delet element at Rear\n";

cout<<"\n5. Display front element\n";

cout<<"\n6. Display back element\n";

cout<<"\n7. Display the element of Deque\n\n";

cout<<"\nEnter choice:";

cin>>ch; //Accepting choice from user

switch(ch) //using switch case

{

case 1:

cout<<"\n\nEnter the element to be inserted:";

cin>>val;

dq.push_front(val);

cout<<"\nElement inserted at front:"<<dq.front();

break;

case 2:

cout<<"\n\nEnter the element to be inserted:";

cin>>val;

dq.push_back(val);

cout<<"\nElement inserted at rear end:"<<dq.back();

break;

case 3:

cout<<"\nElement to be deleted at front:"<<dq.front();

dq.pop_front();

break;

case 4:

cout<<"\nElement to be deleted at rear:"<<dq.back();

dq.pop_back();

break;

case 5:

cout<<"\nElement at front:"<<dq.front();

break;

case 6:

cout<<"\nElement at rear:"<<dq.back();

break;

case 7:

if(dq.empty()==1)

cout<<"\n\nDEQUE is EMPTY..";

else

{

cout<<"\n\nDisplaying the elements of DEQUE...\n";

for(p=dq.begin();p<dq.end();p++)

cout<<" "<<*p<<"\t";

}

break;

}

cout<<"\n\nCONTINUE MENU:";

cin>>cc;

}while(cc=='y');

return 0;

}

/*****************************************************

OUTPUT:

gescoe@hadoopmaster:~/Desktop$ g++ C23.cpp

gescoe@hadoopmaster:~/Desktop$ ./a.out

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:1

Enter the element to be inserted:1

Element inserted at front:1

CONTINUE MENU:1

gescoe@hadoopmaster:~/Desktop/kunal$ clear

gescoe@hadoopmaster:~/Desktop/kunal$ g++ C23.cpp

gescoe@hadoopmaster:~/Desktop/kunal$ ./a.out

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:

Enter the element to be inserted:1

Element inserted at front:1

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:1

Enter the element to be inserted:2

Element inserted at front:2

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:2

Enter the element to be inserted:3

Element inserted at rear end:3

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:2

Enter the element to be inserted:4

Element inserted at rear end:4

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:7

Displaying the elements of DEQUE...

2 1 3 4

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:5

Element at front:2

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:6

Element at rear:4

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:3

Element to be deleted at front:2

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:4

Element to be deleted at rear:4

CONTINUE MENU:y

MENU:

1. Enter element at front

2. Enter element at Rear

3. Delet element at front

4. Delet element at Rear

5. Display front element

6. Display back element

7. Display the element of Deque

Enter choice:7

Displaying the elements of DEQUE...

1 3

CONTINUE MENU:n

*****************************************************/

-------------------------------------------------------------------------------------------------------------------------

/* Write C++ program using STL to add binary numbers (assume one bit as one number); use

STL stack.

***************************************************************************

#include<iostream>

#include<vector>

#include<stack>

using namespace std;

stack <int> read();

void display(stack<int> &s);

stack <int>add(stack<int> &s1,stack<int> &s2);

int main()

{

stack<int> s1,s2,s3;

int ch;

{

cout<<"\n1.Addition of two binary numbers\n2.Quit";

cout<<"\nEnter your choice:";

cin>>ch;

switch(ch)

{

case 1: s1=read();

s2=read();

s3=add(s1,s2);

display(s3);

break;

}

}while(ch!=2);

return 0;

}

stack<int> read()

{

char a[40];

stack<int> s;

cout<<"\n Enter a binary number: ";

cin>>a;

for(int i=0;a[i]!='\0';i++)

{

if(a[i]=='1')

s.push(1);

else

if(a[i]=='0')

s.push(0);

}

return s;

}

stack<int> add(stack<int> &s1,stack<int> &s2)

{

stack<int> s;

int sum,carry=0,bit1,bit2;

while(!s1.empty() || !s2.empty())

{

bit1=bit2=0;

if(!s1.empty())

{

bit1=s1.top();

s1.pop();

}

if(!s2.empty())

{

bit2=s2.top();

s2.pop();

}

sum=(bit1+bit2+carry)%2;

carry=(bit1+bit2+carry)/2;

s.push(sum);

}

if(carry==1)

s.push(1);

return s;

}

void display(stack<int> &s)

{

cout<<"\n Sum= ";

while(!s.empty())

{

cout<<s.top();

s.pop();

}

/*****************************OUTPUT*****************************************

1.Addition of two binary numbers

2.Quit

Enter your choice:1

Enter a binary number: 1010101011

Enter a binary number: 1110001011

Sum= 11000110110

1.Addition of two binary numbers

2.Quit

Enter your choice:2

*************************************************************************/

---------------------------------------------------------------------------------------------------------------------

/**********************************************

ASSIGNMENT NO : C24

TITLE : Write a C++ program to implement

searching & Sorting on Item record using STL.

**********************************************/

#include <iostream> //standard input output stream header file

#include <algorithm> //The STL algorithms are generic because they can operate on a variety of data structures

#include <vector> //The header file for the STL vector library is vector.

using namespace std;

class Item //Item class is created

{

public: char name[10]; //varible declaration

int quantity;

int cost;

int code;

bool operator==(const Item& i1) //Boolean operators allow you to create more complex conditional statements

{

if(code==i1.code) //operator will return 1 if the comparison is true, or 0 if the comparison is false

return 1;

return 0;

}

bool operator<(const Item& i1)

{

if(code<i1.code) //operator will return 1 if the comparison is true, or 0 if the comparison is false

return 1;

return 0;

}

};

vector<Item> o1;

void print(Item &i1);

void display();

void insert();

void search();

void dlt();

bool compare(const Item &i1, const Item &i2)

{

//if (i1.name != i2.name) return i1.cost < i2.cost;

return i1.cost < i2.cost;

}

int main()

{

int ch;

{

cout<<"\n***** Menu *****";

cout<<"\n1.Insert";

cout<<"\n2.Display";

cout<<"\n3.Search";

cout<<"\n4.Sort";

cout<<"\n5.Delete";

cout<<"\n6.Exit";

cout<<"\nEnter your choice:";

cin>>ch;

switch(ch)

{

case 1: insert();

break;

case 2: display();

break;

case 3: search();

break;

case 4: sort(o1.begin(),o1.end(),compare);

cout<<"\n\n Sorted on Cost";

display();

break;

case 5: dlt();

break;

case 6: exit(0);

}

}while(ch!=7);

return 0;

}

void insert()

{

Item i1;

cout<<"\nEnter Item Name:";

cin>>i1.name;

cout<<"\nEnter Item Quantity:";

cin>>i1.quantity;

cout<<"\nEnter Item Cost:";

cin>>i1.cost;

cout<<"\nEnter Item Code:";

cin>>i1.code;

o1.push_back(i1);

}

void display()

{

for_each(o1.begin(),o1.end(),print);

}

void print(Item &i1)

{

cout<<"\n";

cout<<"\nItem Name:"<<i1.name;

cout<<"\nItem Quantity:"<<i1.quantity;

cout<<"\nItem Cost:"<<i1.cost;

cout<<"\nItem Code:"<<i1.code;

}

void search()

{

vector<Item>::iterator p;

Item i1;

cout<<"\nEnter Item Code to search:";

cin>>i1.code;

p=find(o1.begin(),o1.end(),i1);

if(p==o1.end())

cout<<"\nNot found.";

else

{

cout<<"\nFound.";

}

void dlt()

{

vector<Item>::iterator p;

Item i1;

cout<<"\nEnter Item Code to delete:";

cin>>i1.code;

p=find(o1.begin(),o1.end(),i1);

if(p==o1.end())

cout<<"\nNot found.";

else

{

o1.erase(p);

cout<<"\nDeleted.";

}

/******************************************

OUTPUT:

gescoe@hadoopmaster:~/Desktop$ g++ AssignmentC24.cpp

gescoe@hadoopmaster:~/Desktop$ ./a.out

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:1

Enter Item Name:mouse

Enter Item Quantity:5

Enter Item Cost:100

Enter Item Code:101

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:1

Enter Item Name:cpu

Enter Item Quantity:5

Enter Item Cost:15000

Enter Item Code:102

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:1

Enter Item Name:monitor

Enter Item Quantity:5

Enter Item Cost:8000

Enter Item Code:103

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:1

Enter Item Name:keyboard

Enter Item Quantity:5

Enter Item Cost:500

Enter Item Code:104

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:1

Enter Item Name:speaker

Enter Item Quantity:5

Enter Item Cost:1000

Enter Item Code:105

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:2

Item Name:mouse

Item Quantity:5

Item Cost:100

Item Code:101

Item Name:cpu

Item Quantity:5

Item Cost:15000

Item Code:102

Item Name:monitor

Item Quantity:5

Item Cost:8000

Item Code:103

Item Name:keyboard

Item Quantity:5

Item Cost:500

Item Code:104

Item Name:speaker

Item Quantity:5

Item Cost:1000

Item Code:105

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:3

Enter Item Code to search:103

Found.

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:4

Sorted on Cost

Item Name:mouse

Item Quantity:5

Item Cost:100

Item Code:101

Item Name:keyboard

Item Quantity:5

Item Cost:500

Item Code:104

Item Name:speaker

Item Quantity:5

Item Cost:1000

Item Code:105

Item Name:monitor

Item Quantity:5

Item Cost:8000

Item Code:103

Item Name:cpu

Item Quantity:5

Item Cost:15000

Item Code:102

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:5

Enter Item Code to delete:105

Deleted.

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:2

Item Name:mouse

Item Quantity:5

Item Cost:100

Item Code:101

Item Name:keyboard

Item Quantity:5

Item Cost:500

Item Code:104

Item Name:monitor

Item Quantity:5

Item Cost:8000

Item Code:103

Item Name:cpu

Item Quantity:5

Item Cost:15000

Item Code:102

***** Menu *****

1.Insert

2.Display

3.Search

4.Sort

5.Delete

6.Exit

Enter your choice:6

******************************************/

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Saturday, 8 April 2017

SE Comp (2015 Course) Object Oriented Programming Lab Assignments.

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