Hostal_Management_System.cpp

#include <iostream>
#include <stdlib.h>
using namespace std;
class Hostel
{
    string PASS = "PASS@hostel";

public:
    struct Candidates
    {
        string name;
        float percentage;
        string contact;
        string email;
        //string pass;
        string department;
    } stu[50];
    int students = 0;
    // students
    Hostel() // Constructor used here
        {

            // info();
            // actions();
        };
    void info()
    {
        cout << endl;
        cout << endl;
        cout << "Welcome to Government Polytechnic Hostel, Amravati." << endl;
        cout << endl;
        cout << "This Hostel is situated in the campus of Government Polytechnic, Amravati." << endl;
        cout << "Which is an Government Autonomus Polytechic collage in Maharashtra." << endl;
        cout << endl;
        cout << "Post SSC Admissions in Hsotel for First Year Students.\nTotal seats:50\nSeats remained:";
        cout << 49 - students << endl;
    };
    int actions()
    {
        cout << endl;
        int action;
        cout << "\nPress:\n1. Show list of all the Student(s) in Hostel.\n2. Register new Student(s) for Admission.\n3. Show Student(s) Details.\n4. Delete Student(s).\n5. About Us.\n6. Contact Us.\nInput: ";
        cin >> action;
        return action;
    };
    void showCandidates()
    {
        cout << endl;
        cout << "\nList of all candidates:\n";
        for (int i = 0; i <= students; i++)
        {
            cout << (i + 1);
            cout << ". ";
            cout << stu[i].name << endl;
        }
    };
    void newCandidate()
    {
        cout << "\nFillup the following form to get addmission in hostel." << endl;
        students++;
        cout << "Your Name(Use underscore (_) insted of Spaces between name.): ";
        cin >> stu[students].name;
        cout << "Your percentage in last year: ";
        cin >> stu[students].percentage;
        cout << "Contact No: ";
        cin >> stu[students].contact;
        cout << "Email: ";
        cin >> stu[students].email;
        cout << endl;
        cout << "To Which department do you belong?" << endl;
        cout << "1. Computer Science Departmennt.\n2. Electrical Department.\n3. Mechanical Department." << endl;
        int dept;
        cin >> dept;
        if (dept == 1)
        {
            stu[students].department = {"Computer Department."};
        }
        else if (dept == 2)
        {
            stu[students].department = {"Electrical Department."};
        }
        else if (dept == 3)
        {
            stu[students].department = {"Mechanical Department."};
        }
        else
        {
            cout << "Enter valid Input" << endl;
            newCandidate();
        }
        cout << "Your admission form has been submitted,\nWe will contact you soon.." << endl;
    };
    void del_Candidate()
    {
        cout << "Enter the number of candidate which you want to Delete." << endl;
        int temp;
        cin >> temp;
        stu[temp - 1].name = "Deleted!";
        stu[temp - 1].percentage = 0.0;
        stu[temp - 1].contact = "Deleted!";
        stu[temp - 1].email = "Deleted!";
        stu[temp - 1].department = "Deleted!";
        cout << "Student information deleted!" << endl;
    };
    void studentDetails()
    {
        int stdno;
        showCandidates();
        cout << endl;
        cout << "Enter the number of the candidate which you want detail of: " << endl;
        cin >> stdno;
        if (stdno >= 1 && stdno <= (students + 1)) //This condition is to check is there proper input by user or not.
        {
            cout << "Name: ";
            cout << stu[stdno - 1].name << endl;
            cout << "Percentage: ";
            cout << stu[stdno - 1].percentage << endl;
            cout << "Contact No: ";
            cout << stu[stdno - 1].contact << endl;
            cout << "Email: ";
            cout << stu[stdno - 1].email << endl;
            cout << "Department: ";
            cout << stu[stdno - 1].department << endl;
        }
        else
        {
            cout << "Enter valid candidate Number." << endl;
            studentDetails();
        }
        actions();
    };
    bool check_pass()
    {
        string pass;
        cout << endl;
        for (int i = 3; i > 0; i--)
        {
            cout << "You have " << i << " chance(s) to enter Hostel Password." << endl;
            cout << "Enter the Hostel Password to continue:" << endl;
            cin >> pass;
            if (pass != PASS)
            {
                cout << "Sorry, Wrong Password." << endl;
                cout << endl;
            }
            else
            {
                return true;
            }
        };
        return false; 
    };
    void about_Us()
    {
        cout << endl;
        cout << "This is Hostel of Government Polytechnic collage Amravati, an autonomus institute of Government of Maharashtra.\nwhich is one of the oldest institutes established in 1955.\nHostel provides you big area and big room size along with a bed, a table, a chair and a cupboard.\nFacility of 24 X 7 fresh clean water supply, first aid kit and neighbour area with number of trees.\nIf you want then Mess facility is also available in the Hostel with minimal fee.\nHostel is concerned about Discipline and Security of Students.\nThere is special ruls and regulation for students to follow.\nIf you have any questions or queries then feel free to contact us." << endl;
        cout << "Thank You !" << endl;
    };
    void contact_Us()
    {
        cout << endl;
        cout << "To contact to us:" << endl;
        cout << "Write us on gpa_hostel@gmail.com" << endl;
        cout << "Contact number: 07212660127" << endl;
        cout << "Visit our website: WWW.gpamravati.ac.in\\hostel" << endl;
        cout << "Thank You !" << endl;
    };
};
int main()
{
    // CReating the class objest
    Hostel gpa;

    // printing the information about hostal
    gpa.info();

    // defalt students in hostel
    gpa.stu[gpa.students++] = {"Satish_Salunke", 81.0, "123547890", "satish128@gmail.com", "Computer Department"};
    gpa.stu[gpa.students++] = {"Ankush_Bargaje", 90.73, "8605766412", "ankush341@gmail.com", "Mechanical Department"};
    gpa.stu[gpa.students++] = {"Ramesh_Mahalle", 76.43, "6699234576", "mahalle_@gmail.com", "Electrical Department"};
    gpa.stu[gpa.students] = {"Darshan_Joshi", 96.80, "1208946587", "DJ_1@gmail.com", "Computer Department"};

    int action = gpa.actions();

    switch (action)
        {
        case 1:
            gpa.showCandidates();
            gpa.actions();
            break;
        case 2:
            gpa.newCandidate();
            gpa.actions();
            break;
        case 3:
            if (gpa.check_pass())
            {
                gpa.studentDetails();
                gpa.actions();
            }
            break;
        case 4:
            if (gpa.check_pass())
            {
                gpa.del_Candidate();
                gpa.actions();
            }
            break;
        case 5:
            gpa.about_Us();
            gpa.actions();
            break;
        case 6:
            gpa.contact_Us();
            gpa.actions();
            break;
        default:
            cout << "Enter valid input" << endl;
            gpa.actions();
            break;
        }

    return 0;
}