This
is a Character based User Interface or CUI based simple computerized solution
to manage the system activities. This prototype code saves time and energy of
its user by automating certain tasks. This system is either file handling type
or ROM type, and stores activities in a coder-defined file or on ROM memory
temporarily.
C++
is a typed language, so no need of code explanation as everything will be
cleared by itself by reading the code. If you know C++, you know this code.
It’s that simple!
Note
to students, draw a class diagram and flow chart of system by reading the code
itself. The Code::Blocks IDE 20.03+MinGW and Cygwin tool are used to test the
code.
Note
that some systems are very simple and need enhancement but they are complete on
their own in other terms.
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StudentReportCardSystem.cpp |
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//*************************************************************** // HEADER FILE USED IN
PROJECT //**************************************************************** #include<iostream> #include<fstream> #include<iomanip> using namespace std; //*************************************************************** // CLASS USED IN PROJECT //**************************************************************** class student { int rollno; char name[50]; int p_marks, c_marks, m_marks, e_marks,
cs_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; }; //class ends here void student::calculate() { per=(p_marks+c_marks+m_marks+e_marks+cs_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<<"\n\nEnter The Name of
student "; cin.ignore(); cin.getline(name,50); cout<<"\nEnter The marks in
physics out of 100 : "; cin>>p_marks; cout<<"\nEnter The marks in
chemistry out of 100 : "; cin>>c_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
computer science out of 100 : "; cin>>cs_marks; calculate(); } void student::showdata()
const { cout<<"\nRoll number of
student : "<<rollno; cout<<"\nName of student :
"<<name; cout<<"\nMarks in Physics :
"<<p_marks; cout<<"\nMarks in Chemistry :
"<<c_marks; cout<<"\nMarks in Maths :
"<<m_marks; cout<<"\nMarks in English :
"<<e_marks; cout<<"\nMarks in Computer
Science :"<<cs_marks; cout<<"\nPercentage of student
is :"<<per; cout<<"\nGrade of student is
:"<<grade; } void
student::show_tabular() const { cout<<rollno<<setw(6)<<"
"<<name<<setw(10)<<p_marks<<setw(4)<<c_marks<<setw(4)<<m_marks <<setw(4)<<e_marks<<setw(4)<<cs_marks<<setw(8)<<per<<setw(6)<<grade<<endl; } int student::retrollno() const { return rollno; } //*************************************************************** // function
declaration //**************************************************************** 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 //*************************************************************** // THE
MAIN FUNCTION OF PROGRAM //**************************************************************** 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; } //*************************************************************** // function
to write in file //**************************************************************** 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(); } //*************************************************************** // function
to read all records from file //**************************************************************** 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(); } //*************************************************************** // function
to read specific record from file //**************************************************************** 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(); } //*************************************************************** // function
to modify record of file //**************************************************************** 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(); } //*************************************************************** // function
to delete record of file //**************************************************************** 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(); } //*************************************************************** // function
to display all students grade report //**************************************************************** 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 P
C M E
CS %age Grade"<<endl;
cout<<"==========================================================\n"; while(inFile.read(reinterpret_cast<char
*> (&st), sizeof(student))) { st.show_tabular(); } cin.ignore(); cin.get(); inFile.close(); } //*************************************************************** // function
to display result menu //**************************************************************** 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"; } } //*************************************************************** // INTRODUCTION
FUNCTION //**************************************************************** void intro() { cout<<"\n\n\n\t\t STUDENT"; cout<<"\n\n\t\tREPORT
CARD"; cout<<"\n\n\t\t PROJECT"; cout<<"\n\n\n\tMADE BY :
Student(s) name"; cout<<"\n\tSCHOOL : School
Name"; cin.get(); } //*************************************************************** // ENTRY
/ EDIT MENU FUNCTION //**************************************************************** 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(); } } //*************************************************************** // END
OF PROJECT //*************************************************************** |
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For more C/C++ codes related information click here. …till next post, bye-bye and take care. |
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