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M.A.M SCHOOL OF ENGINEERING

Siruganur , Tiruchirappalli.

Department of Computer Science and EngineeringCS1313-Object Oriented Programming Laboratory

LAB MANUAL

M.A.M.SCHOOL OF ENGINEERING

Siruganur Tiruchirappalli.

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COMPUTER SCIENCE ENGINEERING LABORATORY

CERTIFICATE

Certified that this is the bonafide record of practicals done by

Selvan / Selvi. _________________________________

Reg.No.______________ of First Year B.E., during the

academic Year 2008 2009.

Station:

Date: HOD Staffin - Charge

Submitted for the university practical Examination held on

Date: _________ Internal Examiner External Examiner

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CS1313 OBJECT ORIENTED PROGRAMMING LABORATORY( Common to EEE, EIE and ICE)

L T P C

0 0 3 2

1. Programs Using Functions- Functions with Default Arguments

- Implementation of Call by Value, Call by Address

2. Simple Classes for understanding objects, member functions and Constructors

- Classes with Primitive Data Members

- Classes with Arrays as Data Members

- Classes with Pointers as Data MembersString Class- Classes with Constant Data Members

- Classes with Static Member Functions

3. Compile Time Polymorphism- Operator Overloading including Unary and Binary Operators

- Function Overloading

4. Runtime Polymorphism

- Inheritance

- Virtual Functions- Virtual Base Classes

- Templates

5. File Handling

- Sequential Access- Random Access

Total: 45

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INDEX

EXPT

NO

DATE NAME OF THE EXPERIMENT PAGE

NO

MARKS

OBTAINED

SIGNATURE

1 Function with default argument

2A Call By Value

2B Call By Reference

2C Call By Address

3A Classes and Objects

3B Creating marklist using array

3C String Manipulation

4A Static Member function

4B Constant Member Function

5A Unary Operator overloading

5B Binary Operator overloading

6 Function overloading

7A Single Inheritance

7B Multiple Inheritance

8A virtual function

8B virtual base class

9A Function Template

9B Class Template

10A Sequential File Access

10B Random File Access

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1.Function with default argumentEx No:1

AIM:To write a c++ program for function with default arguments

ALGORITHM:

1.

Start the program.

2. Declare all the header file.

3. Declare printline function and set default values for arguments.4. Define the printline function.

5. printline function will print character n times.

6. call the function within main().7. stop the execution.

PROGRAM:

#include

#includevoid printline(char='_',int=70);

void main(){

clrscr();

printline();printline('!');

printline('*',40);

printline('r',55);

getch();}

void printline(char ch,int count){int i;

cout

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Ex No:2A

Call By Value

AIM:To write a c++ program to illustrate the concept of call by value.

ALGORITHM:1. Declare necessary variables.

2. Get the values for swapping.3. Define a function which swaps value that are passed as arguments to itusing temporary

variable.

4. Invoke that function by passing the given values

PROGRAM:

#include#include

void swap(int x,int y){

int t;

cout

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Ex No:2B

Call By Reference

AIM:To write a c++ program to illustrate the concept of call by reference.

ALGORITHM:

1. Declare necessary variables.2. Get the values for swapping.

3. Define a function which swaps value using their reference which are passed as

arguments to it .

4. Invoke that function with or without arguments.

PROGRAM:#include

#includevoid swap(int &x,int &y)

{

int t;

t=x;x=y;

y=t;

}void main()

{

clrscr();

int a,b;cout>a>>b;

swap(a,b);cout

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Ex No:2C

Call By Address

AIM:To write a c++ program to illustrate the concept of call by address.

ALGORITHM:1. Declare necessary variables.

2. Get the values for swapping.

3. Define a function which swaps address by using temporary variable t.

4. Invoke that function by passing address of variable.

PROGRAM:#include

#includevoid swap(int*x,int*y)

{

int t;t=*x;

*x=*y;

*y=t;

}void main()

{int a,b;clrscr();

couta>>b;swap(&a,&b);

cout

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Ex No:3A

Classes and Objects

AIM:

To write a c++ program to illustrate the concept of Classes and objects.

ALGORITHM:

1. Declare all the header files.2. Declare the class and define all the data types.

3. Define sub function of getdata( ) and putdata( ).

4. Define main() function, declare the values for getdata( ).

5. Obtain Output and display using putdata( ).6. Stop the execution.

PROGRAM:

#include

#includeclass item

{

int number;float cost;

public:

void getdata (int a,float b);void putdata()

{

cout

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Ex No:3BCreating marklist using array

AIM:To create a mark list using arrays in c++ programming language.

ALGORITHM:1.

Declare all the header files.

2. Declare the class and define the data types with arrays.

3. Define the functions and get the details.4. Create student mark list.

PROGRAM:

#include

#include

class student

{char name[20];

int i,m;int a[5],tot;

float avg;public:

void get();

void cal();};

void student::get()

{

coutname;

coutm;cout

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getch();}

OUTPUT:

give the nameisac

give no. of subjects5

enter the marks:8987

84

8490

tot=434

avg=86

RESULT:

Thus the C++ program for creating mark list using arrays was executed and output verified.

Ex No:3C

String ManipulationAIM:

To write a c++ program to perform operation on string class.

ALGORITHM:

1. Create a string class with string as its data members and getdata(), display(),

string length, string copy as its member functions.2. getdata() member function is used to get the values of the string.

3.

display() member function is used to display the string.4. string length() member function calculate the length of the string by inspecting its

characters one by one till NULL(\0).5. string copy() member function copies the string value which is passed as an

argument to the invoking object.

PROGRAM:

#include

#include

#includeclass str

{private:char str[40];

char*n;

public:void get();

void disp();

int strlen();

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void strcpy(char*n);};

void str::get()

{

coutstr;

}

void str::disp(){

cout

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RESULT:

Thus the C++ program for string manipulation was executed and output verified.

Ex No:4A

Static Member function

AIM:To write a c++ program to implement static member function.

ALGORITHM:1. Create a class with static data member and static member function.

2. Static member function only accesses the static data members.

3. Static member function displays the static data member (path of the directory).

4. Invoke that function with object.PROGRAM:

#include#include

#includeclass directory

{

public:static char path[];

static void spath(char const*newpath);

};

void directory::spath(char const*newpath){ strcpy(path,newpath);}

char directory::path[199]="/user/ashok";void main(){

clrscr();

cout

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Ex No:4B

Constant Member Function

AIM:

To write a c++ program to display the details of a person using constant member function.

ALGORITHM:1. Create a class person with name, address and phone as pointer variable in the

private section and constant function to get and display the details.2. Gets the name of the person using constant function.

3. Gets the address of the person using get address function.

4. Get the phone of the person using get phone function.5. Print the details using print function.

6. Invoke that function with creating object.

PROGRAM:#include

#include#include

class person{

char *name;

char *add;char *ph;

public:

void init();

void clear();void sname(char const *str);

void sphone(char const *str);void sadd(char const *str);char const *gname(void)const;

char const *gadd(void)const;

char const *gphone(void)const;};

inline void person::init()

{

name=add=ph=0;}

inline void person::clear()

{delete name;delete add;

delete ph;

}void person ::sname(char const *str)

{

if (name)

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delete name;name=new char[strlen (str)+1];

strcpy(name,str);

}

void person::sadd(char const *str){

if(add)

delete add;add=new char[strlen(str)+1];

strcpy(add,str);

}void person::sphone(char const *str)

{

if(ph)

delete add;ph=new char[strlen(str)+1];

strcpy(ph,str);

}

inline char const *person::gphone()const{return ph;

}

inline char const *person::gadd()const{return add;

}

inline char const *person::gname()const{

return name;

}

void print(person const &p)

{if(p.gname())

cout

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p2.sadd("madurai");p2.sphone("9239232090");

print(p2);

p1.clear();

p2.clear();getch();

}

OUTPUT:

name:isac

address:theni

ph:no:923942090

name:newton

address:madurai

ph:no:9239232090

RESULT:

Thus the program to implement using contant member function was executed and output verified.

Ex No:5A

Unary Operator overloading

AIM:To write a c++ program to illustrate the concept of unary operator overloading.

ALGORITHM:1. Create a class space which has the data member a, b, c.

2. Declare the operator function by void operator-( ).

3. Define operator function which is used to change the sign of data members.4. Invoke that operator function inside the main().

PROGRAM:

#include#include

class s

{int a,b,c;public:

void getdata(int x,int y, int z);

void display(void);void operator-();

};

void s::getdata(int x,int y,int z)

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{a=x;b=y;c=z;

}

void s::display()

{cout

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#includeclass num

{

private:

int a,b,c,d;public:

void input (void);

void show(void);num operator+(num);

};

void num ::input(){

couta>>b>>c>>d;

}void num::show()

{

cout

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object y enter the values for a,b,c,d: 5 6 4 9

x: A=5 B=6 C=9 D=8

y: A=5 B=6 C=4 D=9

z: A=10 B=12 C=13 D=17

RESULT:

Thus the C++ program to implement Binary operator overloading was executed and output verified.

Ex No:6

Function overloading

AIM:To write a c++ program to illustrate the concept of function overloading.

ALGORITHM:1. Declare necessary variables.

2.

Create a class with add(int,int) ,add(float,float) asmember functions andnecessary variable.

3. add(int,int) is used to add two integer values.4. add(float,float) is used to add two float values.

5. Using object call the required function with corresponding input.

6. Display the output.

PROGRAM:

#include#include

class fover{public:

int a,b,c;

float x,y,z;fover()

{

cout

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}~fover()

{

coutb;

f.add(a,b);coutx>>y;

f.add(x,y);

getch();}

OUTPUT:object is created:

enter the integer value3 4

the addtion values:7

enter the float values:2.4

2.6

the addtion values5the object is deleted

RESULT:

Thus the C++ program using function overloading was executed and output verified.

Ex No:7A

Multiplication of Postive numbers using Single Inheritance

AIM:

To write a c++ program tomultiply the positive numbers using single inheritance.

ALGORITHM:

1. Define a Nase class Ba. Class B has one private data member ,one public data member and three

member functions.

2. Define Derived class D.All the Properties of B is privately inherited.3. Create a derived class object.

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4. Access the base class data members .5. Do the multiplication.

6. And display the results.

DIAGRAM:B

D

PROGRAM:#include

#include

class B

{int a;

public:int b;

void getab();

int geta(void);

void showall(void);};

class D:private B

{int c;

public:void mul(void);

void display(void);};

void B::getab()

{couta>>b;

}

int B::geta(){

return a;}void B::showall()

{

cout

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getab();c=b*geta();

}

void D::display()

{showall();

cout

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EMPLOYEE PERSON

MANAGER

PROGRAM:

#include

#include

class person{

int age,empno;

char name[15];

public:void getdata()

{

coutname;

coutage;}

void display()

{

cout

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class manager:public person,public employee{

char position[26];

public:

void read(){

get();

getdata();cout

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Ex No:8A

Calculation of area of shapes using virtual functionAIM:

To write a c++ program for calculation of area of shapes using virtual functions.

ALGORITHM:1. Define a shape class .

2. Define a virtual function show().

3. Define Rectangle class and inherit the base class.

4. Create a pointer and object for base class.5. Display the rectangle and triangle information.

PROGRAM:

#include#include

#includetemplate

t max(t a,t b)

{

if (a>b)return a;

else

return b;}

void main(){

clrscr();char ch1,ch2,ch;

coutch1>>ch2;ch=max(ch1,ch2);

cout

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}OUTPUT:

enter two characters(ch1,ch2):a s

max(ch1,ch2):s

enter 2 integers2 4max(a,b):4

enter 2 floats:2.6 4.5

max(f1,f2):4.5RESULT:

Thus the C++ program to implement virtual function was executed and output verified.

Ex No:8B

Student marklist using virtual base class

AIM:

To write a c++ program for a student mark list processing using virtual base class.

ALGORITHM:

1. Define a student class and make this as virtual.2. Define marks class and Inherit the student class virtually.

3. Define sports class and inherit properties of student virtually.

4. Define result class and inherit marks, sports into result.

5. Display student information with marks.

DIAGRAM:

STUDENT

TEST SPORTS

RESULT

PROGRAM:

#include#include

class student

{

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public:char name[10];

int rollno;

void gets()

{coutname;

coutrollno;

}};

class marks:virtual public student{

public:

int m1,m2,m3;

void details(){

coutm1>>m2>>m3;

}};class sportsmarks:virtual public student

{

public:int m4;

void puts()

{coutm4;

}};

class result:virtual public marks,virtual public sportsmarks

{public:

int tot;float avg;

void display()

{

tot=m1+m2+m3+m4;avg=tot/4;

}

void demo()

{

cout

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result r;r.gets();

r.details();

r.puts();

r.display();r.demo();

getch();

}

//output//

student name: isac

enter student roll no: 10

enter the 3 subjects marks: 7878

82

enter the sports marks: 65

m1=78m2=78m3=82m4=65

the sports markstotal= 303

avg is 75

RESULT:

Thus the C++ program to implement virtual base class was executed and output verified.

Ex No:9A

Function Template

AIM:To write a c++ program using function template to find the maximum of two datas.

ALGORITHM:

1. Create the function template, to find the maximum of two datas.2.

Get different data type values like integer, float and character.

3. Find maximum of those data using template function.

4. Finally print the result.

PROGRAM:#include

#include

#include

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templatet max(t a,t b)

{

if (a>b)

return a;else

return b;

}void main()

{

clrscr();char ch1,ch2,ch;

coutch1>>ch2;

ch=max(ch1,ch2);cout

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ALGORITHM:1. Create the class template, to find the greatest of two datas.

2. Get different data type values like integer, float and character.

3. Use a function to find the maximum of two values for both int, float .4. Find maximum of those data using template function.

5.

Finally print the result.

PROGRAM

#include#include

#include

template

class demo{

public:

int i;

t a,b;void gets()

{

couta>>b;

}

void gets1(){

couta>>b;

}

void operation(){

if(a>b)cout

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}}};void main()

{

clrscr();

demod1;d1.gets();

d1.operation();

demod2;d2.gets1();

d2.operation();

demod3;d3.compare();

getch();

}

OUTPUT:

enter 2 integers:2 3

b is greater:3enter 2 floats:5 4

a is greater:5enter 2 strings:

5 6b1 has the highest length6

RESULT:

Thus the C++ program to implement class template was executed and output verified.

Ex No:10 A

Sequential File Access

AIM:To write a c++ program for creating student data using sequential file access.

ALGORITHM:1. Define student class and create the function get and show.

2. Using ofstream and ifstream get and display the file information.

3. Invoke function using sequential file access.

PROGRAM

#include

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#include#include

class student

{

protected:char name[10];

int rollno;

public:void get()

{

coutname;

coutrollno;

}void show()

{

cout

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PROGRAM

#include

#include

#includeclass student

{

protected:char name[10];

int rollno;

public:void get()

{

coutname;coutrollno;

}

void show(){

cout

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int pos=(n-1)*sizeof(student);in.seekg(pos);

in.read((char*)&s,sizeof(s));

s.show();

getch();}

OUTPUT:

enter student data

enter the name:ashok

enter roll no:5

enter another student data(y/n)?y

enter student data

enter the name:hakeem

enter roll no:11

enter another student data(y/n)?n

there are2person in file

enter person no:2

name:hakeem

roll no:11

RESULT:

Thus the C++ program to create student data using Randoml file access was executed and output

verified.