C++ Project on Telephone Directory System

Telephone Directory System

// TELEPHONE DIRECTORY SYSTEM

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

class stud
{
public:
    char name[20];
    char address[20];
    unsigned int ph_no;

    void get(void);
    void show(void);
    void modify(void);
};

void stud::get(void)
{
    int i = 0;

    cout << "\n             Enter name -> ";
    cin.get(name[i]);

    while (name[i] != '\n')
    {
        i = i + 1;
        cin.get(name[i]);
    }
    cin.getline(name, 20, '\n');

    cout << "             Enter address -> ";
    cin.getline(address, 20, '\n');
    fflush(stdin);

    cout << "             Enter ph_no\t-> \t";
    cin >> ph_no;
    fflush(stdin);
}

void stud::show(void)
{
    cout << "\n";
    cout << "             NAME      :" << "\t" << name << "\n";
    cout << "             ADDRESS   :" << "\t" << address << "\n";
    cout << "             PH_NO     :" << "\t" << ph_no << "\n";
}

void stud::modify(void)
{
    char name[20];
    char address[20];
    unsigned int ph_no;

    cout << "\n                Enter new name     :";
    cin >> name;
    cout << "\n                Enter the city     :";
    cin >> address;
    cout << "\n                Enter new ph_no    :";
    cin >> ph_no;
    strcpy(s.name, name);
    strcpy(s.address, address);
    s.ph_no = ph_no;
}

int main()
{
    stud s;
    int ch;

    z:
    clearviewport();
    rectangle(10, 10, 630, 470);
    setbkcolor(DARKGRAY);
    textbackground(3);
    textcolor(5);
    clrscr();

    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 10, " PRESS ANY KEY 1 TO 6 ");

    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 50, "\n\n1. TO ADD ");

    setcolor(BLUE);
    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 100, "\n\n2. TO SHOW ");

    setcolor(BLUE);
    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 150, "\n\n3. TO SEARCH ");

    setcolor(BLUE);
    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 200, "4.\n\n TO MODIFY ");

    setcolor(BLUE);
    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 250, "\n\n\n5. TO DELETE ");

    setcolor(BLUE);
    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 4);
    outtextxy(220, 300, "\n\n\n6. TO EXIT ");

    settextstyle(TRIPLEX_FONT, HORIZ_DIR, 3);
    outtextxy(220, 350, " Enter the choice ->");

    gotoxy(62, 23);
    cin >> ch;

    switch (ch)
    {
        case 1:  // responsible for addition of record
        {
            clrscr();
            fstream f;
            f.open("rec", ios::in | ios::out | ios::ate | ios::app | ios::binary);
            char ans;

            s.get();
            f.write((char *)&s, sizeof(s));
            clrscr();
            outtextxy(250, 360, "   Do you want to continue:- ");
            ans = getche();
            if (ans == 'Y' || ans == 'y') { goto z; }
            f.close();
            break;
        }

        case 2:  // will show all the contents of the file
        {
            clrscr();
            cout << "\n\n";
            fstream f;
            f.open("rec", ios::in | ios::out | ios::ate | ios::app | ios::binary);

            f.seekg(0);
            int ctr = 0;

            while (f.read((char *)&s, sizeof(s)))
            {
                ctr = ctr + 1;
                if (ctr == 8) { getchar(); clrscr(); ctr = 0; }
                s.show();
                if (f.eof() == 1) { break; }
            }
            f.close();
            outtextxy(240, 350, "   Do you want to continue :-");

            char ans;
            ans = getche();
            if (ans == 'y' || ans == 'Y')
            {
                closegraph();
                goto z;
            }
            else { exit(1); }
        }

        case 3:  // search
        {
            gotoxy(60, 25);
            clearviewport();
            rectangle(10, 10, 630, 470);
            setbkcolor(DARKGRAY);
            textbackground(3);
            textcolor(5);
            clrscr();
            char ans;
            ifstream f;
            stud s;
            char name[20];
            char address[20];
            unsigned int ph_no;
            f.open("rec", ios::in | ios::binary);
            cout << "\n\n\n  Enter name whose record to be searched :";
            cin >> name;
            do
            {
                f.read((char *)&s, sizeof(s));
                if (f.eof() == 1) { break; }
                if (strcmpi(s.name, name) == 0)
                {
                    cout << "\n                 Name     :" << s.name << "\n";
                    cout << "\n                 Address  :" << s.address << "\n";
                    cout << "\n                 Ph_no    :" << s.ph_no << "\n";
                }
            } while (f);
            f.close();
            outtextxy(240, 360, "   Do you want to continue :-");
            ans = getche();
            if (ans == 'y' || ans == 'Y') { goto z; }
            break;
        }

        case 4:  // modify
        {
            clrscr();
            char ans;
            fstream f;
            stud s;
            unsigned int ph_no;
            f.open("rec", ios::in | ios::out | ios::binary);
            cout << "\n\n      Enter the ph_no to modify the record :";
            cin >> ph_no;
            do
            {
                f.read((char *)&s, sizeof(s));
                if (f.eof() == 1) { break; }

                if (s.ph_no == ph_no)
                {
                    cout << "\n                Current Name       :" << s.name << "\n";
                    cout << "\n                Current Address    :" << s.address << "\n";
                    cout << "\n                Current Ph_no      :" << s.ph_no << "\n";

                    char name[20];
                    char address[20];
                    cout << "\n                Enter new name     :";
                    cin >> name;
                    cout << "\n                Enter the city     :";
                    cin >> address;
                    cout << "\n                Enter new ph_no    :";
                    cin >> ph_no;
                    strcpy(s.name, name);
                    strcpy(s.address, address);
                    s.ph_no = ph_no;
                    int l = f.tellg();
                    f.close();
                    f.open("rec", ios::out | ios::binary | ios::ate);
                    f.seekg(l - sizeof(s));
                    f.write((char *)&s, sizeof(s));
                }
            } while (f);
            f.close();
            outtextxy(290, 360, "   Do you want to continue :-");
            ans = getche();
            if (ans == 'Y' || ans == 'y') { goto z; }
            break;
        }

        case 5:  // responsible for the deletion of the record
        {
            clrscr();
            char name[20];
            stud s;
            ifstream fin;
            fstream fout;
            fin.open("rec", ios::in | ios::binary);
            fout.open("va", ios::app | ios::binary);
            cout << "\n \t\t\t  DELETING :-";
            int i;
            fflush(stdin);
            cout << "\n\n      Enter the name :-  ";
            cin.get(name[i]);
            while (name[i] != '\n')
            {
                i = i + 1;
                cin.get(name[i]);
            }
            fflush(stdin);
            fflush(stdout);
            cin.getline(name, 20, '\n');

            while (fin)
            {
                fin.read((char *)&s, sizeof(s));
                if (strcmp(s.name, name) == 0)
                {
                    fout.read((char *)&s, sizeof(s));
                }
                else
                {
                    if (fin.eof() == 1) { break; }
                    fout.write((char *)&s, sizeof(s));
                }
            }
            fin.close();
            fout.close();
            system("del rec");
            system("ren va rec");
            cout << "\n      Entry is Deleted:-";
            getchar();

            char ans;
            outtextxy(240, 340, "   Do you want to continue:- ");
            ans = getche();
            if (ans == 'y' || ans == 'Y') { goto z; }
            else if (ans == 'n' || ans == 'N')
            {
                getchar();
                exit(1);
            }
        }

        case 6:
        {
            clearviewport();
            outtextxy(250, 360, "THE END OF THE PROJECT:-");
            outtextxy(260, 390, "\n \n\n\n\n PLEASE PRESS ENTER");
            getchar();
            closegraph();
            exit(1);
        }

        default:
            goto z;
    }
}