C++ Project on School Management

C++ Project on School Management

#include
#include
#include
#include
#include
#include
#include

struct marks_criteria
{
    int sc_min, com_min, arts_min, seat_sc, seat_com, seat_arts;
} crit;

struct administrator
{
    char user_name[10];
    char password[10];
} admin;

struct student
{
    char name[20];
    int regno, m_eng, m_math, m_sc, m_sst, m_lang;
    int pref_code, stream;
    // Sc=1, Com=2; Arts=3;

    public:
        void new_file();
        void input_data();
        void allot_stream();
        int get_stream();
        void display();
        int show_per()
        {
            return((m_eng + m_math + m_sc + m_sst + m_lang) / 5);
        }
};

void welcome();
void menu();
int verify_password();
void assign_user();
void clear();
void input_criteria();
void read_criteria();
void read_student();
void create_eligible_sc();
void create_eligible_com();
void create_eligible_arts();
void read_eligible_sc();
void read_eligible_com();
void read_eligible_arts();
char * stream_name(int strm);
void select_list(char *in_file, char *out_file);
void thanks();

student s;

void main()
{
    clrscr();
    welcome();

    fstream fin, fout;
    fstream fsc, fcom, farts;
    int opt = 1, ch;

    while(opt != 8)
    {
        clear();
        cout << "\n\t======================  MAIN   MENU  =======================\n";
        cout << "\n\t[1] CREATE / MODIFY  ADMISSION  CRITERIA(Administrator only)";
        cout << "\n\n\t[2] ENTER STUDENT'S DATA ";
        cout << "\n\n\t[3] ALLOTMENT OF  STREAM";
        cout << "\n\n\t[4] DISPLAY CRITERIA FOR SELECTION";
        cout << "\n\n\t[5] DISPLAY ALLOTMENT OF  STUDENT'S STREAM";
        cout << "\n\n\t[6] DISPLAY ALL  STUDENT'S REGISTERED";
        cout << "\n\n\t[7] CREATE / DISPLAY MERIT LIST";
        cout << "\n\n\t[8] QUIT";
        cout << "\n\t=============================================================\n";
        cout << "\n\n\t\tEnter your  choice : ";
        cin >> opt;

        switch(opt)
        {
        case 1:
            int p;
            assign_user();
            p = verify_password();
            if(p == 0)
            {
                input_criteria();
            }
            else
            {
                cout << "\n\tU R Not a Valid User.";
                cout << "\n\tU Dont have the Authority to Create Question Bank. Bye\n\n";
            }
            break;

        case 2:
            int option;
            clrscr();
            cout << "\nWhat do u want --\n\n\n\n\n\tCreate  a new student information  file or Append to the existing file?\n\n\t(press 1 for new creation and 2 for appending)";
            cin >> option;
            if(option == 1)
            {
                s.new_file();
            }
            else
            {
                s.input_data();
            }
            break;

        case 3:
            clrscr();
            fin.open("student", ios::in | ios::out);
            fsc.open("elig_sc", ios::out);
            fcom.open("eligcom", ios::out);
            farts.open("eligart", ios::out);

            while(fin.read((char*)& s, sizeof(s)))
            {
                s.allot_stream();
                s.get_stream();

                cout << "\nApplication Rejected. Not Eligible\n";

                if(s.get_stream() == 1)
                    fsc.write((char*)& s, sizeof(s));

                if(s.get_stream() == 2)
                    fcom.write((char*)& s, sizeof(s));

                if(s.get_stream() == 3)
                    farts.write((char*)& s, sizeof(s));
            }
            fin.close();
            fsc.close();
            fcom.close();
            farts.close();
            cout << "\n*******************************************";
            cout << "\n\n\tSTREAM ALLOCATION DONE.";
            cout << "\n*******************************************";
            break;

        case 4:
            read_criteria();
            cout << "\n Sc : " << crit.sc_min << "%" << "\t\t seats :" << crit.seat_sc;
            cout << "\n Com: " << crit.com_min << "%" << "\t\t seats :" << crit.seat_com;
            cout << "\n Arts: " << crit.arts_min << "%" << "\t\t seats :" << crit.seat_arts;
            break;

        case 5:
            cout << "\n\t[1] SCIENCE \n\t[2] COMMERCE \n\t[3] ARTS";
            cin >> ch;
            if(ch == 1)
                read_eligible_sc();
            if(ch == 2)
                read_eligible_com();
            if(ch == 3)
                read_eligible_arts();
            break;

        case 6:
            clrscr();
            read_student();
            break;

        case 7:
            {
                char c;
                int k = 1;
                cout << "\n****************************************";
                cout << "\n****************************************";
                cout << "\n    M E R I T  L I S T";
                cout << "\n    ==================";
                cout << "\n\tEnter 1 for MERIT LIST SCIENCE ";
                cout << "\n\tEnter 2 for MERIT LIST COMMERCE ";
                cout << "\n\tEnter 3 for MERIT LIST ARTS \t";
                cout << "\n****************************************";
                cout << "\n****************************************";
                cin >> k;

                if(k == 1)
                {
                    select_list("elig_sc", "sell_sc");
                    fin.open("sell_sc", ios::in);
                }
                if(k == 2)
                {
                    select_list("eligcom", "sellcom");
                    fin.open("sellcom", ios::in);
                }
                if(k == 3)
                {
                    select_list("eligart", "sellart");
                    fin.open("sellart", ios::in);
                }
                if(k >= 1 && k <= 3)
                {
                    while(fin.read((char*)& s, sizeof(s)))
                    {
                        s.display();
                        cout << "\n\t Continue (y/n)?";
                        cin >> c;
                        if(c == 'n')
                            break;
                    }
                }
                fin.close();
                fin.close();
                fin.close();
                break;
            }

        case 8:
            thanks();
            break;
        }
    }
}

// END OF WHILE

void assign_user()
{
    strcpy(admin.user_name, "rimi");
    strcpy(admin.password, "rimi");
}

int verify_password()
{
    char u_name[10];
    char u_pwd[10], temp[2];
    int x = 1;
    cout << "\n\n   Enter user name : ";
    cin >> u_name;
    cout << "\n\n   Enter Password : ";
    cin >> u_pwd;
    x = strcmp(admin.user_name, u_name);
    if(x == 0)
    {
        x = strcmp(admin.password, u_pwd);
    }
    cin.getline(temp, 2);
    return(x);
}

void student::allot_stream()
{
    int per = (m_eng + m_math + m_sc + m_sst + m_lang) / 5;
    read_criteria();

    switch(pref_code)
    {
        case 1:
            if(per >= crit.sc_min)
                stream = pref_code;
            else
                stream = 0;
            break;
        case 2:
            if(per >= crit.com_min)
                stream = pref_code;
            else
                stream = 0;
            break;
        case 3:
            if(per >= crit.arts_min)
                stream = pref_code;
            else
                stream = 0;
            break;
    }
}

int student::get_stream()
{
    return(stream);
}

void input_criteria()
{
    fstream fout;
    fout.open("criteria", ios::in | ios::out);
    cout << "\nEnter  the  required marks for SCIENCE stream(in percentage)";
    cin >> crit.sc_min;
    cout << "\nEnter  No. of Seats for SCIENCE stream";
    cin >> crit.seat_sc;
    cout << "\nEnter  the  required marks for COMMERCE stream(in percentage)";
    cin >> crit.com_min;
    cout << "\nEnter  No. of Seats for COMMERCE stream";
    cin >> crit.seat_com;
    cout << "\nEnter  the  required marks for ARTS stream(in percentage)";
    cin >> crit.arts_min;
    cout << "\nEnter  No. of Seats for ARTS stream";
    cin >> crit.seat_arts;
    fout.write((char*)& crit, sizeof(crit));
    fout.close();
}

void read_criteria()
{
    fstream fin;
    fin.open("criteria", ios::in);
    fin.read((char*)& crit, sizeof(crit));
    fin.close();
}

void student::input_data()
{
    clrscr();
    fstream fin;
    fin.open("student", ios::app | ios::out);
    char t[2], ans;
    while(1)
    {
        cout << "\nEnter  the  name of the  student  :  ";
        gets(name);
        cout << "\n\nEnter  the roll of the  student  :  ";
        cin >> regno;
        cout << "\n\nEnter  marks in eng  :  ";
        cin >> m_eng;
        cout << "\n\nEnter  marks in math  :  ";
        cin >> m_math;
        cout << "\n\nEnter  marks in science  :  ";
        cin >> m_sc;
        cout << "\n\nEnter  marks in sst  :  ";
        cin >> m_sst;
        cout << "\n\nEnter  marks in language  :  ";
        cin >> m_lang;
        cout << "==================STREAM  PREFERED?================ \n";
        cout << "\t" << "[1] for SCIENCE\n";
        cout << "\t" << "[2] for COMMERCE\n";
        cout << "\t" << "[3] for ARTS ";
        cout << "\n================================================= \n\tENTER PREFERENCE CODE : ";
        cin >> pref_code;
        stream = -1;
        fin.write((char*)&s, sizeof(s));
        cin.getline(t, 2);
        cout << "\n\tEnter More Student ? (y/n)";
        cin >> ans;
        if(ans == 'n')
            break;
    }
    fin.close();
}

void student::new_file()
{
    clrscr();
    fstream fin;
    fin.open("student", ios::out);
    char t[2], ans;
    while(1)
    {
        cout << "\nEnter  the  name of the  student  :  ";
        gets(name);
        cout << "\n\nEnter  the roll of the  student  :  ";
        cin >> regno;
        cout << "\n\nEnter  marks in eng  :  ";
        cin >> m_eng;
        cout << "\n\nEnter  marks in math  :  ";
        cin >> m_math;
        cout << "\n\nEnter  marks in science  :  ";
        cin >> m_sc;
        cout << "\n\nEnter  marks in sst  :  ";
        cin >> m_sst;
        cout << "\n\nEnter  marks in language  :  ";
        cin >> m_lang;
        cout << "==================STREAM  PREFERED?================ \n";
        cout << "\t" << "[1] for SCIENCE\n";
        cout << "\t" << "[2] for COMMERCE\n";
        cout << "\t" << "[3] for ARTS ";
        cout << "\n================================================= \n\tENTER PREFERENCE CODE : ";
        cin >> pref_code;
        stream = -1;
        fin.write((char*)&s, sizeof(s));
        cin.getline(t, 2);
        cout << "\n\tEnter More Student ? (y/n)";
        cin >> ans;
        if(ans == 'n')
            break;
    }
    fin.close();
}

void student::display()
{
    cout << "\n============================================\n";
    cout << "\n\tNAME\t\t: " << name;
    cout << "\n\tROLL NO\t\t: " << regno;
    cout << "\n\tENGLISH\t\t: " << m_eng;
    cout << "\n\tMATHS\t\t: " << m_math;
    cout << "\n\tSCIENCE\t\t: " << m_sc;
    cout << "\n\tSST\t\t: " << m_sst;
    cout << "\n\tLANGUAGE\t: " << m_lang;
    cout << "\n\tPERCENTAGE\t: " << show_per();
    cout << "\n\tSTREAM ALLOTTED\t: " << stream_name(stream);
    cout << "\n============================================\n";
}

void read_student()
{
    char c;
    fstream fin;
    fin.open("student", ios::in);
    while(fin.read((char*)& s, sizeof(s)))
    {
        s.display();
        cout << "\n\t Continue (y/n)?";
        cin >> c;
        cout << "\n";
    }
    fin.close();
}

void read_eligible_sc()
{
    char ans;
    fstream fout;
    fout.open("elig_sc", ios::in);
    fout.seekg(0);
    while(fout.read((char*)& s, sizeof(s)))
    {
        s.display();
        cout << "\n\t Continue (y/n)? ";
        cin >> ans;
        if(ans == 'n')
            break;
    }
    fout.close();
}

void read_eligible_com()
{
    char ans;
    fstream fout;
    fout.open("eligcom", ios::in);
    while(fout.read((char*)& s, sizeof(s)))
    {
        s.display();
        cout << "\n\t Continue (y/n)? ";
        cin >> ans;
        if(ans == 'n')
            break;
    }
    fout.close();
}

void read_eligible_arts()
{
    char ans;
    fstream fout;
    fout.open("eligart", ios::in);
    while(fout.read((char*)& s, sizeof(s)))
    {
        s.display();
        cout << "\n\t Continue (y/n)? ";
        cin >> ans;
        if(ans == 'n')
            break;
    }
    fout.close();
}

void clear()
{
    // for(int i=1; i<=24; i++)
    //     cout << "\n";
}

char * stream_name(int strm)
{
    switch(strm)
    {
    case -1:
        return("Not assigned");
    case 0:
        return("Nill");
    case 1:
        return("Science");
    case 2:
        return("Commerce");
    case 3:
        return("Arts");
    default:
        return("None");
    }
}

void select_list(char *in_file, char *out_file)
{
    fstream sel, fin;
    int n = 0, i, j;
    student sl[100], t;

    sel.open(out_file, ios::out);
    fin.open(in_file, ios::in);

    while(fin.read((char*)& sl[n], sizeof(s)))
    {
        n++;
    }
    cout << "\nNo of Eligible Students  = " << n;

    for(i = 0; i < n - 1; i++)
    {
        for(j = 0; j < n - 1 - i; j++)
        {
            if(sl[j].show_per() < sl[j+1].show_per())
            {
                t = sl[j];
                sl[j] = sl[j+1];
                sl[j+1] = t;
            }
        }
    }

    for(i = 0; i < n; i++)
    {
        sel.write((char*)& sl[i], sizeof(s));
    }

    fin.close();
    sel.close();
}

void welcome()
{
    int z;
    cout << "\n\n\n\n\n\n\n\n\n\n\t**********   W E L C O M E   **********";
    cout << "\n\n\n\n\n\n\n\t\t\tpress any number and then 'ENTER' to continue";
    cin >> z;
}

void thanks()
{
    int w;
    clrscr();
    cout << "\n\n\n\n\n\n\n\n\n\n\t**********   T H A N K   Y O U   F O R   W O R K I N G   *******";
    cout << "\n\n\n\n\n\n\n\t\t\tpress any number and then 'ENTER' to exit";
    cin >> w;
}