Turbo C++ Menu Driven Student Mark List Preparation with persistant data

Here is Turbo C++ source code Menu Driven Student Mark List Preparation with persistant data. You can add student name and marks for 5 subjects. Then you will have an option to view, edit and delete the student and marks information.

All the data you entered would be saved into a file. so that if you are re running the program, then you do not have add any old data.

Source Code

// Student MarkList Preparation

#include <conio.h>

#include <process.h>

#include <dos.h>

#include <iostream.h>

#include <stdio.h>

#include <string.h>

#pragma pack(2)

struct CStudent

{

public:

char name[64];

int marks[5];

int total;

};

struct CStudents

{

#define MaxSz 100

char m_fileName[1024];

int m_nMaxStudents;

CStudent m_studList[MaxSz];

CStudents(const char *filename);

void AddRecord(const char *name, int *marks);

void EditRecord(int pos, const char *name, int *marks);

void DeleteRecord(int pos);

int ReadRecords();

int WriteRecords();

};

CStudents::CStudents(const char *filename)

{

m_nMaxStudents = 0;

strcpy(m_fileName, filename);

}

void CStudents::AddRecord(const char *name, int *marks)

{

int pos = m_nMaxStudents;

strcpy(m_studList[pos].name,name);

m_studList[pos].total = 0;

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

{

m_studList[pos].marks[i] = marks[i];

m_studList[pos].total += marks[i];;

}

m_nMaxStudents++;

WriteRecords();

}

void CStudents::EditRecord(int pos, const char *name, int *marks)

{

strcpy(m_studList[pos].name,name);

m_studList[pos].total = 0;

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

{

m_studList[pos].marks[i] = marks[i];

m_studList[pos].total += marks[i];

}

WriteRecords();

}

void CStudents::DeleteRecord(int pos)

{

m_nMaxStudents--;

for(int i = pos; i < m_nMaxStudents; i++)

{

m_studList[i] = m_studList[i + 1];

}

WriteRecords();

}

int CStudents::ReadRecords()

{

FILE *istream = fopen(m_fileName, "rb");

if (istream == 0)

return 0;

char buf[4096];

int nTotalRecordsRead = 0;

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

{

if(feof(istream))

break;

int nBytesRead = fread(buf, 1, sizeof(CStudent), istream);

if(nBytesRead < sizeof(CStudent))

break;

char *p = (char*)(&m_studList[i]);

memcpy(p, buf, sizeof(CStudent));

nTotalRecordsRead++;

}

fclose(istream);

m_nMaxStudents = nTotalRecordsRead;

return nTotalRecordsRead;

}

int CStudents::WriteRecords()

{

FILE *ostream = fopen(m_fileName, "wb");

if (ostream == 0)

return 0;

int nTotalRecordsWritten = 0;

char buf[4096];

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

{

fwrite((char*)&m_studList[i], 1, sizeof(CStudent), ostream);

nTotalRecordsWritten++;

}

fclose(ostream);

return nTotalRecordsWritten;

}

CStudents theStudents("c:\\marklist.bin");

int DisplayMainMenu()

{

::system("cls");

gotoxy(10,4);

cout << "Welcome to Student MarkList Application";

gotoxy(10,5);

cout << "___________________________________________";

gotoxy(10,6);

cout << "1. Add Student Mark List";

gotoxy(10,7);

cout << "2. Edit Student Mark List";

gotoxy(10,8);

cout << "3. View Student Mark List";

gotoxy(10,9);

cout << "4. Delete Student Mark List";

gotoxy(10,10);

cout << "5. Exit";

gotoxy(10,11);

cout << "___________________________________________";

gotoxy(10,13);

cout << "Enter your Selection: ";

int m = -1;

cin >> m;

return m;

}

void ViewRecords()

{

theStudents.ReadRecords();

::system("cls");

gotoxy(10,4);

cout << "Welcome to Student Mark List Application";

gotoxy(10,5);

cout << "_______________________________________________________________";

gotoxy(10,6);

cout << "SNo Student Name Sub1 Sub2 Sub3 Sub4 Sub5 Total";

gotoxy(10,7);

cout << "_______________________________________________________________";

int pos = 8;

// Enable Paging

for(int i = 0; i < theStudents.m_nMaxStudents; i++)

{

gotoxy(10,pos);

cout << i + 1;

gotoxy(14,pos);

cout << theStudents.m_studList[i].name;

gotoxy(33,pos);

cout << theStudents.m_studList[i].marks[0];

gotoxy(40,pos);

cout << theStudents.m_studList[i].marks[1];

gotoxy(47,pos);

cout << theStudents.m_studList[i].marks[2];

gotoxy(54,pos);

cout << theStudents.m_studList[i].marks[3];

gotoxy(61,pos);

cout << theStudents.m_studList[i].marks[4];

gotoxy(68,pos);

cout << theStudents.m_studList[i].total;

pos++;

}

gotoxy(10,pos++);

cout << "_______________________________________________________________";

pos++;

gotoxy(10,pos++);

}

void InputRecords()

{

while(1)

{

::system("cls");

gotoxy(10,4);

cout << "Welcome to Student Mark List Application";

gotoxy(10,5);

cout << "__________________________________________________________";

gotoxy(10,6);

cout << "Student Name: ";

gotoxy(10,7);

cout << "Sub1 Mark: ";

gotoxy(10,8);

cout << "Sub2 Mark: ";

gotoxy(10,9);

cout << "Sub3 Mark: ";

gotoxy(10,10);

cout << "Sub4 Mark: ";

gotoxy(10,11);

cout << "Sub5 Mark: ";

gotoxy(10,12);

cout << "__________________________________________________________";

gotoxy(23,6);

char name[64];

cin >> name;

int marks[5];

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

{

gotoxy(23,7 + i);

cin >> marks[i];

}

theStudents.AddRecord(name, marks);

gotoxy(10,14);

cout << "Do you want to add another record (Y/N)? ";

char ch = getch();

if(ch == 'Y' || ch == 'y')

continue;

else

break;

}

void EditRecords()

{

ViewRecords();

cout << "Enter the serial number you want to edit: ";

int m;

cin >> m;

if(m >= 1 && m <= theStudents.m_nMaxStudents)

{

::system("cls");

gotoxy(10,4);

cout << "Welcome to Student Mark List Application";

gotoxy(10,5);

cout << "__________________________________________________________";

gotoxy(10,6);

cout << "Student Name: ";

gotoxy(10,7);

cout << "Sub1 Mark: ";

gotoxy(10,8);

cout << "Sub2 Mark: ";

gotoxy(10,9);

cout << "Sub3 Mark: ";

gotoxy(10,10);

cout << "Sub4 Mark: ";

gotoxy(10,11);

cout << "Sub5 Mark: ";

gotoxy(10,12);

cout << "__________________________________________________________";

gotoxy(23,6);

char name[64];

cin >> name;

int marks[5];

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

{

gotoxy(23,7 + i);

cin >> marks[i];

}

theStudents.EditRecord(m - 1, name, marks);

gotoxy(10,12);

cout << "Record updated. Press any key to return to Main Menu";

getch();

}

else

{

gotoxy(10,12);

cout << "Invalid Entry. Press any key to return to Main Menu";

getch();

}

void DeleteRecords()

{

ViewRecords();

cout << "Enter the serial number you want to delete: ";

int m;

cin >> m;

if(m >= 1 && m <= theStudents.m_nMaxStudents)

{

theStudents.DeleteRecord(m - 1);

cout << "Record deleted. Press any key to return to Main Menu";

getch();

}

else

{

cout << "Invalid Entry. Press any key to return to Main Menu";

getch();

}

int main()

{

theStudents.ReadRecords();

while(1)

{

int selection = DisplayMainMenu();

switch(selection)

{

case 1:

InputRecords();

break;

case 2:

EditRecords();

break;

case 3:

{

ViewRecords();

cout << "Press any key to return to Main Manu: ";

getch();

}

break;

case 4:

DeleteRecords();

break;

case 5:

default:

return 0;

};

}

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Software & Finance

Turbo C++ Menu Driven Student Mark List Preparation with persistant data

Source Code

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