STUDEN RECORD MANAGEMENT SYSTEM IN CPP

 STUDEN RECORD MANAGEMENT SYSTEM IN CPP


Source Code:

#include<iostream>
#include<fstream>
#include<iomanip>

using namespace std;

class student
{
private:

    int rno;
    char name[50];
    int enno;
    float marks;

public:

    void getdata()
    {
        cout<<"\t\t\t\t\t Please Enter Student Details :"<<endl;

        cout<<"\n\n\nEnter The Roll Number of the student: ";
        cin>>rno;

        cout<<"\nEnter student's Name: ";
        cin.ignore();
        cin.getline(name,50);

        cout<<"\nEnter The Enrollment Number of the student: ";
        cin>>enno;

        cout<<"\nEnter The Marks of the student in Previous Year: ";
        cin>>marks;
    }

    void showdata()
    {
        cout<<"\nRoll Number: "<<rno;

        cout<<"\nName: "<<name;

        cout<<"\nEnrollment Number: "<<enno;

        cout<<"\nMarks: "<<marks<<endl;
    }


    int getrno()
    {
        return rno;
    }
};


void add()
{
    student st;
    ofstream out;

    out.open("student.txt",ios::app);
    st.getdata();
    out.write((char *) &st, sizeof(student));
    out.close();
    cout<<"\n\n\tStudent record Has Been Created Succssesfully.";
    cin.ignore();
    cin.get();
    system("cls");
}

void display()
{
    student st;
    ifstream in;
    in.open("student.txt");

    cout<<"\n\t\t\t\t\t\t DISPLAYING ALL RECORD !!!\n\n";
    while(in.read((char *) &st, sizeof(student)))
    {
        st.showdata();
    }
    in.close();
    cin.ignore();
    cin.get();
    system("cls");
}

void searchs(int n)
{
    bool flag=false;
    student st;
    ifstream in;
    in.open("student.txt");

    while(in.read((char *) &st, sizeof(student)))
    {
        if(st.getrno()==n)
        {
            st.showdata();
            cout<<"\n\n\n\n\n Record Found";
            flag=true;
        }
    }
    in.close();

    if(flag==false)
        cout<<"\n\n Record Not Found";
    cin.ignore();
    cin.get();
    system("cls");
}
void update(int n)
{
    bool flag=false;
    student st;
    fstream File;
    File.open("student.txt",ios::in|ios::out);
    while(! File.eof() && flag==false)
    {
        File.read((char *) &st, sizeof(student));
        if(st.getrno()==n)
        {
            st.showdata();
            cout<<"\n\nPlease Enter the New Details of student"<<endl;
            st.getdata();
            int pos= (-1) *static_cast<int>(sizeof(st));
            File.seekp(pos,ios::cur);
            File.write((char *) &st, sizeof(student));
            cout<<"\n\n\t Record Updated";
            flag=true;
        }
    }
    File.close();
    if(flag==false)
        cout<<"\n\n Record Not Found ";
    cin.ignore();
    cin.get();
    system("cls");
}

void deletes (int n)
{
    bool flag=false;
    student st;
    ifstream in;
    in.open("student.txt");
    ofstream out;
    out.open("Temp.txt",ios::out);
    in.seekg(0,ios::beg);
    while(in.read((char *) &st, sizeof(student)))
    {
        if(st.getrno()!=n)
        {
            out.write((char *) &st, sizeof(student));
        }
        else
            flag=true;
    }
    out.close();
    in.close();
    remove("student.txt");
    rename("Temp.txt","student.txt");
    if(flag==true)
    {
        cout<<"\n\n\tRecord Deleted .";
    }
    else
        cout<<"\n\n\tRecord Not Found .";
    cin.ignore();
    cin.get();
    system("cls");
}
int main()
{
    int num;
    while(1)
    {
        int c;
        cout<<"\t\t\tGovernment Polytechnic Jalgaon\n\t\t\t\t Department of Information Technology"<<endl;

        cout<<"\n\n 1. Add a Student Data"<<endl;
        cout<<" 2. Display Student Data"<<endl;
        cout<<" 3. Search Student from Records"<<endl;
        cout<<" 4. Update Student Record"<<endl;
        cout<<" 5. Delete student Data from Records"<<endl;
        cout<<" 6. Exit"<<endl;
        cout<<"\n\n\tPlease Enter Your Choice (1-6): ";
        cin>>c;
        system("cls");

        switch(c)
        {
        case 1:
            add();
            break;

        case 2:
            display();
            break;

        case 3:
            cout<<"\n\n\tPlease Enter Student's Roll Number: ";
            cin>>num;
            searchs(num);
            break;
        case 4:
            cout<<"\n\n\tPlease Enter Student's Roll Number: ";
            cin>>num;
            update(num);
            break;
        case 5:
            cout<<"\n\n\tPlease Enter Student's Roll Number: ";
            cin>>num;
            deletes(num);
            break;
        case 6:
            cout<<"\n\n\n\n\n\n\n\n\n\t\t\tThanks For Using This Application"<<endl;
            exit(0);
        default:
            cout<<"\n\n\n\n\n\n\t\t\t\tInvalid Choice !!! Please Insert Proper Choice (1-6) ...."<<endl<<endl<<endl<<endl<<endl;
            system("pause");
            system("cls");
        }
    }
    return 0;
}

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