Student Report Card project in C/C++.

#include<iostream>

#include<fstream>

#include<iomanip>

using namespace std;

class student

{

int rollno;

int Class;

char name[50];

int s_marks, ss_marks, m_marks, e_marks, h_marks;

double per;

char grade;

void calculate(); //function to calculate grade

public:

void getdata(); //function to accept data from user

void showdata() const; //function to show data on screen

void show_tabular() const;

int retrollno() const;

int retClass() const;

}; //class ends here

void student::calculate()

{

per=(s_marks+ss_marks+m_marks+e_marks+h_marks)/5.0;

if(per>=60)

grade='A';

else if(per>=50)

grade='B';

else if(per>=33)

grade='C';

else

grade='F';

}

void student::getdata()

{

cout<<"\nEnter The roll number of student ";

cin>>rollno;

cout<<"\nEnter Class of student";

cin>>Class;

cout<<"\n\nEnter The Name of student ";

cin.ignore();

cin.getline(name,50);

cout<<"\nEnter The marks in Science out of 100 : ";

cin>>s_marks;

cout<<"\nEnter The marks in Social Science out of 100 : ";

cin>>ss_marks;

cout<<"\nEnter The marks in Maths out of 100 : ";

cin>>m_marks;

cout<<"\nEnter The marks in English out of 100 : ";

cin>>e_marks;

cout<<"\nEnter The marks in Hindi out of 100 : ";

cin>>h_marks;

calculate();

}

void student::showdata() const

{

cout<<"\nRoll number of student : "<<rollno;

cout<<"\nClass of student : "<<Class;

cout<<"\nName of student : "<<name;

cout<<"\nMarks in Science : "<<s_marks;

cout<<"\nMarks in Social Science : "<<ss_marks;

cout<<"\nMarks in Maths : "<<m_marks;

cout<<"\nMarks in English : "<<e_marks;

cout<<"\nMarks in Hindi :"<<h_marks;

cout<<"\nPercentage of student is :"<<per;

cout<<"\nGrade of student is :"<<grade;

}

void student::show_tabular() const

{

cout<<rollno<<setw(6)<<Class<<setw(6)<<" "<<name<<setw(10)<<s_marks<<setw(4)<<ss_marks<<setw(4)<<m_marks<<setw(4)

<<e_marks<<setw(4)<<h_marks<<setw(8)<<per<<setw(6)<<grade<<endl;

}

int student::retrollno() const

int student::retClass() const

{

return rollno;

return Class;

}

void write_student(); //write the record in binary file

void display_all(); //read all records from binary file

void display_sp(int); //accept rollno and read record from binary file

void modify_student(int); //accept rollno and update record of binary file

void delete_student(int); //accept rollno and delete selected records from binary file

void class_result(); //display all records in tabular format from binary file

void result(); //display result menu

void intro(); //display welcome screen

void entry_menu(); //display entry menu on screen

int main()

{

char ch;

cout.setf(ios::fixed|ios::showpoint);

cout<<setprecision(2); // program outputs decimal number to two decimal places

intro();

do

{

system("cls");

cout<<"\n\n\n\tMAIN MENU";

cout<<"\n\n\t01. RESULT MENU";

cout<<"\n\n\t02. ENTRY/EDIT MENU";

cout<<"\n\n\t03. EXIT";

cout<<"\n\n\tPlease Select Your Option (1-3) ";

cin>>ch;

switch(ch)

{

case '1': result();

break;

case '2': entry_menu();

break;

case '3':

break;

default :cout<<"\a";

}

}while(ch!='3');

return 0;

}

void write_student()

{

student st;

ofstream outFile;

outFile.open("student.dat",ios::binary|ios::app);

st.getdata();

outFile.write(reinterpret_cast<char *> (&st), sizeof(student));

outFile.close();

cout<<"\n\nStudent record Has Been Created ";

cin.ignore();

cin.get();

}

void display_all()

{

student st;

ifstream inFile;

inFile.open("student.dat",ios::binary);

if(!inFile)

{

cout<<"File could not be open !! Press any Key...";

cin.ignore();

cin.get();

return;

}

cout<<"\n\n\n\t\tDISPLAY ALL RECORD !!!\n\n";

while(inFile.read(reinterpret_cast<char *> (&st), sizeof(student)))

{

st.showdata();

cout<<"\n\n====================================\n";

}

inFile.close();

cin.ignore();

cin.get();

}

void display_sp(int n)

{

student st;

ifstream inFile;

inFile.open("student.dat",ios::binary);

if(!inFile)

{

cout<<"File could not be open !! Press any Key...";

cin.ignore();

cin.get();

return;

}

bool flag=false;

while(inFile.read(reinterpret_cast<char *> (&st), sizeof(student)))

{

if(st.retrollno()==n)

{

st.showdata();

flag=true;

}

}

inFile.close();

if(flag==false)

cout<<"\n\nrecord not exist";

cin.ignore();

cin.get();

}

void modify_student(int n)

{

bool found=false;

student st;

fstream File;

File.open("student.dat",ios::binary|ios::in|ios::out);

if(!File)

{

cout<<"File could not be open !! Press any Key...";

cin.ignore();

cin.get();

return;

}

while(!File.eof() && found==false)

{

File.read(reinterpret_cast<char *> (&st), sizeof(student));

if(st.retrollno()==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(reinterpret_cast<char *> (&st), sizeof(student));

cout<<"\n\n\t Record Updated";

found=true;

}

}

File.close();

if(found==false)

cout<<"\n\n Record Not Found ";

cin.ignore();

cin.get();

}

void delete_student(int n)

{

student st;

ifstream inFile;

inFile.open("student.dat",ios::binary);

if(!inFile)

{

cout<<"File could not be open !! Press any Key...";

cin.ignore();

cin.get();

return;

}

ofstream outFile;

outFile.open("Temp.dat",ios::out);

inFile.seekg(0,ios::beg);

while(inFile.read(reinterpret_cast<char *> (&st), sizeof(student)))

{

if(st.retrollno()!=n)

{

outFile.write(reinterpret_cast<char *> (&st), sizeof(student));

}

}

outFile.close();

inFile.close();

remove("student.dat");

rename("Temp.dat","student.dat");

cout<<"\n\n\tRecord Deleted ..";

cin.ignore();

cin.get();

}

void class_result()

{

student st;

ifstream inFile;

inFile.open("student.dat",ios::binary);

if(!inFile)

{

cout<<"File could not be open !! Press any Key...";

cin.ignore();

cin.get();

return;

}

cout<<"\n\n\t\tALL STUDENTS RESULT \n\n";

cout<<"==========================================================\n";

cout<<"R.No Name S SS M E H %age Grade"<<endl;

cout<<"==========================================================\n";

while(inFile.read(reinterpret_cast<char *> (&st), sizeof(student)))

{

st.show_tabular();

}

cin.ignore();

cin.get();

inFile.close();

}

void result()

{

char ch;

int rno;

system("cls");

cout<<"\n\n\n\tRESULT MENU";

cout<<"\n\n\n\t1. Class Result";

cout<<"\n\n\t2. Student Report Card";

cout<<"\n\n\t3. Back to Main Menu";

cout<<"\n\n\n\tEnter Choice (1/2/3)? ";

cin>>ch;

system("cls");

switch(ch)

{

case '1' : class_result(); break;

case '2' : cout<<"\n\n\tEnter Roll Number Of Student : "; cin>>rno;

display_sp(rno); break;

case '3' : break;

default: cout<<"\a";

}

}

void intro()

{

cout<<"\n\n\n\t\t Welcome To STUDENT REPORT CARD PROJECT";

cout<<"\n\n\n\tMADE BY : BJ";

cout<<"\n\tComapny : Technology Easy";

cin.get();

}

void entry_menu()

{

char ch;

int num;

system("cls");

cout<<"\n\n\n\tENTRY MENU";

cout<<"\n\n\t1.CREATE STUDENT RECORD";

cout<<"\n\n\t2.DISPLAY ALL STUDENTS RECORDS";

cout<<"\n\n\t3.SEARCH STUDENT RECORD ";

cout<<"\n\n\t4.MODIFY STUDENT RECORD";

cout<<"\n\n\t5.DELETE STUDENT RECORD";

cout<<"\n\n\t6.BACK TO MAIN MENU";

cout<<"\n\n\tPlease Enter Your Choice (1-6) ";

cin>>ch;

system("cls");

switch(ch)

{

case '1': write_student(); break;

case '2': display_all(); break;

case '3': cout<<"\n\n\tPlease Enter The roll number "; cin>>num;

display_sp(num); break;

case '4': cout<<"\n\n\tPlease Enter The roll number "; cin>>num;

modify_student(num);break;

case '5': cout<<"\n\n\tPlease Enter The roll number "; cin>>num;

delete_student(num);break;

case '6': break;

default: cout<<"\a"; entry_menu();

}

}