ComPUter ScienCE///

1. Investigatory Project
Name: ArjunN.M
Class : XII-B

2. Certificate
Kendriya Vidyalaya Payyannur
Certified that this is the
bonafide record of the
investigatory project done in
computer science on
“STUDENT INFORMATION SYSTEM“
By Of class
for the academic year 2014-15.
Teacher in charge Head of the
Institution
External Examiner

3. Acknowledgement
I hereby express my sincere thanks and
gratitude to our computer science
teacher Mrs.Reena.P.V for her support
and gratitude. I also thank CBSE for
providing me such an opportunity.
I am extremely grateful and thankful to
both my parents and friends for their
constructive criticism and valuable
suggestions extended to me throughout
this project.
Thank you,

4. Object Oriented
Programming
A type of programming in which programmers
define not only the data type of data structure ,
but also the types of operations (functions) that
can be applies to the data structure.
In this way, the data structure becomes an
object that includes both data and functions.

6. Objectives Of OOP
The programming in which data is logically
represented in the form of a class and physically
represented in the form of an object is called as
object oriented programming (OOP).OOP has the
following important features.
CLASS :- In OOP languages it is must to create a
class for representing data. Class contains
variables for storing data and functions to
specify various operations that can be performed
on data. Class will not occupy any memory space
and hence it is only logical representation of data.
OBJECTS :- Objects are the basic building block
of OOP system. The real world objects have two
characteristics: state and behavior. All the
objects in OOPS are based on real world having a
specific state and behavior.

7. Characteristics Of
Object Oriented
Programming
1. Data Abstraction
2. Data Encapsulation
3. Data Hiding
4. Polymorphism
5. Inheritance

8. 6. Modularity
1. Data Abstraction
Abstraction refers to the act of representing
essential features without including the
background details.
2. Data Encapsulation
Encapsulation is the process of combining
data and function into a single unit called
class. Using the method of encapsulation,the
programmer cannot directly access the data.
Data is only accessible through the functions
existing inside the class.
3. Data Hiding
Data hiding is the implementation details of a
class that are hidden from the user. A class
groups its members into three sections.

9. 4. Polymorphism
It is the property by which a message can be
sent to the objects of different classes and
each object will respond in different way.
5. Inheritance
It has the property of a class to inherit
properties from other class.
6. Modularity
The act of partitioning a program into
individual components is called modularity.

10. Project Details
This is a project based on
“STUDENT INFORMATION SYSTEM”
Header Files Used:-
1. FSTREAM.H- for file handling,
cin and cout.
2. PROCESS.H-for exit( ) function
3. CONIO.H-for clrscr( ) & getch()
function
4. STDIO.H-for standard I/O
operations
5. STRING.H-for string handling

11. CODING
#include<iostream.h>
#include<conio.h>
#inlcude<process.h>
#include<stdio.h>
#include<string.h>
class student
{
int admno[5];
char name[40];
float marks;
char grade;
char dob[10];
int rno;
char fathername[20];
char mothername[20];
int phone[10];

12. char remarks[50];
public :
void getdata( )
{
cout<<”Enter the details “;
cout<<” n Enter your name ……n”;
gets(name);
cout<<”n Enter your roll number…t”;
cin>>rno;
cout<<”n Enter your admission number … t”;
cin>>admno;
cout<<”n Enter your father’s name…t”;
cin>>fathername;
cout<<”n Enter your mother’s name…t”;
cin>>mothername;
cout<<”n Enter your Date of birth
(DD/MM/YY)…”;
gets(dob);
cout<<”n Enter your phone number…t”;
cin>>phone;

13. cout<<”n Enter the total marks……t”;
cin>>marks;
getgrade( );
giveremarks( );
}
void getgrade( )
{
if(marks>=90)
grade=’A+’;
else if(marks<90 && marks>=80)
grade=’A’;
else if(marks<80 && marks>=70)
grade=’B’;
else if(marks<70 && marks>=60)
grade=’C’;
else if(marks<60 && marks>=50)
grade=’D’;
else

14. grade=’E’;
}
void giveremarks( )
{
if(grade==’A’)
strcpy(remarks, “ Excellent “);
else if(grade==’B’)
strcpy(remarks,”Very good! keep it up!”)
else if(grade==’C’)
strcpy(remarks,”Can do better ! “);
else if(grade==’D’)
strcpy(remarks,”try to score more !”)
else
strcpy(remarks,”Hard work required”)
}
void putdata( )
{
cout<<” ~~~The Student Details Are~~~”;
cout<<”n Name :- t”;
puts(name);

15. cout<<”n Admission number :- t”;
cout<<admno;
cout<<”n Roll no:- t”;
cout<<rno;
cout<<”n Date Of Birth :- t”;
puts(dob);
cout<<”n Father’s Name :- t”;
cout<<fathername;
cout<<”n Mother’s Name :- t”;
cout<<mothername;
cout<<” nYour total marks is….t”;
cout<<marks;
cout<<”nYou have got ”<<grade<<” grade”;
cout<<”nRemarks :- “;
puts(remarks);
}
int getroll()
{
return rno;
}

16. void modify()
{
cout<<” nEnter the new details”;
cout<<” n Enter your name ……n”;
gets(name);
cout<<”n Enter your roll number…t”;
cin>>rno;
cout<<”n Enter your admission number … t”;
cin>>admno;
cout<<”n Enter your father’s name…t”;
cin>>fathername;
cout<<”n Enter your mother’s name…t”;
cin>>mothername;
cout<<”n Enter your Date of birth
(DD/MM/YY)…”;
gets(dob);
cout<<”n Enter your phone number…t”;
cin>>phone;
cout<<”n Enter the total marks……t”;

17. cin>>marks;
getgrade( );
giveremarks( );
}
};
void insertdata( )
{
fstream f;
f.open(“Student.dat”,ios::out || ios::binary);
student s;
s.getdata( );
f.write((char *)&s,sizeof(s);
f.close( );
}
void appenddata( )
{
student S;
ofstream f;
f.open(“Student.dat”,ios::app || ios::binary);
char ch=’y’;

18. while(ch==’y’)
{
S.getdata( );
f.write((char*)&S,sizeof(S));
cout<<”Do you want to continue…?? (y/n)…”;
cin>>ch;
}
f.close( );
}
void deletedata( )
{
int rno;
student s;
cout<<”Enter the Roll number to be deleted..”;
cin>>rno;
fstream f,F;
f.open(“Student.dat”,ios::in || ios::binary);
F.open(“Tmp.dat”,ios::out||ios::binary||ios::in);
while(f)
{

19. f.read((char*)&s,sizeof(s));
if(s.getroll( )==rno)
{
cout<<” nThe record is Deleted……”;
}
else
F.write((char*)&s,sizeof(s));
}
int l=remove(“Student.dat”);
int m=rename(“Tmp.dat”,”Student.dat”);
F.seekg(0,ios::beg);
while(f)
{
F.read((char*)&s,sizeof(s));
s.putdata( );
}
f.close( );
F.close( );
}
void Modifydata( )

20. {
student s;
int rno;
char found =’n’;
cout<<”Enter the roll number of the record to
be modified”;
cin>>rno;
fstream f;
f.open(“Student.dat”,ios::in || ios::app ||
ios::binary);
while(f)
{
f.read((char*)&s,sizeof(s));
if(s.getroll( )==rno)
{
found=’y’;
s.modify( );
f.seekp(-1*sizeof(s),ios::cur);
f.write((char*)&s,sizeof(s));
f.close( );

21. }
void displaydata( )
{
fstream f;
f.open(“Student.dat”,ios::in || ios::binary);
student s;
f.read((char*)&s,sizeof(s));
s.putdata( );
f.close( );
}
void searchrecord( )
{
student s;
int rno;
char found=’n’;
cout<<”Enter the roll No. of the record to be
searched for……”;
cin>>rno;
fstreamf;

22. f.open(“Student.dat”,ios::in || ios::out ||
ios::binary);
while(f)
{
f.read((char*)&s,sizeof(s));
if(s.getroll( )==rno);
{
found=’y’;
s.putdata( );
}
else
found=’n’;
}
if(found==’n’)
{
cout<<” Sorry Record not Found…! “;
}
f.close( );
}
void main( )

23. {
int ch;
cout<<”==========STUDENT DATABASE
MANAGEMENT SYSTEM==========”;
cout<<”nnn 1.Add Recordnn2.Delete
Recordnn3.Append Recordnn4.Modify
Recordnn5.Display Recordnn6.Search
Recordnn6.Exitnn”;
cout<<”n~~ENTER YOUR CHOICE~~n”;
cin>>ch;
switch(ch)
{
case 1 :insertdata( );
break;
case 2 :deletedata( );
break;
case 3 :appenddata( );
break;
case 4 :modifydata( );
break;

24. case 5 :displaydata( );
break;
case 6 :searchrecord( );
break;
case 7 :exit(0);
break;
default case: cout<<”Invalid Input….Sorry!”;
}
getch( );
}

25. Output
==========STUDENT DATABASE MANAGEMENT SYSTEM==========
1.Add Record
2.Delete Record
3.Append Record
4.Modify Record
5.Display Record
6.Search Record
7.Exit
~~ENTER YOUR CHOICE~~
1
Enter the details
Enter your name ……Arjun Nm
Enter your roll number…24

26. Enter your admission number …4672
Enter your father’s name…KM Govindan
Enter your mother’s name…Usha NM
Enter your Date of birth
(DD/MM/YY)…19/11/97
Enter your phone number…9495479414
Enter the total marks……96
==========STUDENT DATABASE MANAGEMENT SYSTEM==========
1.Add Record
2.Delete Record
3.Append Record
4.Modify Record
5.Display Record
6.Search Record
7.Exit
~~ENTER YOUR CHOICE~~
1

27. Enter the details
Enter your name ……Aswin Saket
Enter your roll number…28
Enter your admission number …1500
Enter your father’s name…T Shivadasan
Enter your mother’s name…Lalitha Saket
Enter your Date of birth
(DD/MM/YY)…17/07/97
Enter your phone number…4912801083
Enter the total marks……93
==========STUDENT DATABASE MANAGEMENT SYSTEM==========
1.Add Record
2.Delete Record
3.Append Record
4.Modify Record
5.Display Record
6.Search Record
7.Exit

28. ~~ENTER YOUR CHOICE~~
5
~~~The Student Details Are~~~
Name :-Arjun Nm
Admission number :-4672
Roll no:-24
Date Of Birth :-19/11/97
Father’s Name :-K M Govindan
Mother’s Name :-Usha NM
Your total marks is….96
You have got A+ grade”;
Remarks :- Excellent
==========STUDENT DATABASE MANAGEMENT SYSTEM==========
1.Add Record
2.Delete Record
3.Append Record
4.Modify Record
5.Display Record

29. 6.Search Record
7.Exit
~~ENTER YOUR CHOICE~~
2
Enter the roll Number to be deleted…28
The Record deleted……
==========STUDENT DATABASE MANAGEMENT SYSTEM==========
1.Add Record
2.Delete Record
3.Append Record
4.Modify Record
5.Display Record
6.Search Record
7.Exit
~~ENTER YOUR CHOICE~~
7

30. Bibilography
www.Google.com
www.kvsecontent.com

31. www.wikipedia.com
www.facebook.com
www.gmail.com