Rabu, 24 September 2014

Report Student Card (contoh sederhana c++)



TUGAS STUDENT REPORT CARD PROJECT


Nama:Tumiran
Nim:1111010208
Jurusan:Ti 11 m


1. //***************************************************************
//                   HEADER FILE USED IN PROJECT
//****************************************************************

#include
#include
#include
#include
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 : "<
                cout<<"\nName of student : "<
                cout<<"\nMarks in Physics : "<
                cout<<"\nMarks in Chemistry : "<
                cout<<"\nMarks in Maths : "<
                cout<<"\nMarks in English : "<
                cout<<"\nMarks in Computer Science :"<
                cout<<"\nPercentage of student is  :"<
                cout<<"\nGrade of student is :"<
}

void student::show_tabular() const
{
                cout<
}

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<
                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 (&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 (&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 (&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 (&st), sizeof(student));
                                if(st.retrollno()==n)
                                {
                                                st.showdata();
                                                cout<<"\n\nPlease Enter The New Details of student"<
                                                st.getdata();
                                    int pos=(-1)*static_cast(sizeof(st));
                                    File.seekp(pos,ios::cur);
                                    File.write(reinterpret_cast (&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 (&st), sizeof(student)))
                {
                                if(st.retrollno()!=n)
                                {
                                                outFile.write(reinterpret_cast (&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"<
                cout<<"============================================\n";
                while(inFile.read(reinterpret_cast (&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 : TUMIRAN";
                cout<<"\n\tSCHOOL : CAMBRIDGE SCHOOL";
                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
//***************************************************************B.

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