i am doing a project on student information system using file handling...i made my own project but it didnt work....i read many books but actually the main problem is that i lack logic.....i have found from the net this project but the output on the notepad file is giving unusual symbols along with required data....plz help with output as quick as possible.........(it works in turbo c++ 3.0 as i have used gotoxy and clrscr.....and output notepad file will be saved in C drive

enum bool{false,true};
struct Data
{
    int id;
    char first_name[20];
    char last_name[20];
    char address[40];
    char city[20];
    char email_id[20];
    char rollno[20];
    char phone[15];
};
class Student
 {
    public:
    Student();
    void AddRecord();
    void DelRecord();
    void CreateFile();
    void ViewRecord();
    private:
    void ReadFromFile(Data[]);
    //precondition:array has been filled by the value either from user or constructor
    //postcondition:array has been updated according to data in file student.dat
    bool SearchEmptyRecord(Data[],int,int&);
    //precondition:array has been filled by the value either from user or constructor
    //postcondition:return the condition whether the empty record is found or not, and its location
    void WriteToFile(Data[]);
    //precondition:array has been updated by user
    //postcondition:array is written on the file student.dat
    bool Search(Data[],int,int,int&);
    //precondition:array has been filled by the value either from user or constructor
    //postcondition:return the condition whether the searched record is found or not, and its location
    void ShowRecord(Data[],int);
    //precondition:array has been filled by the value either from user or constructor
    //postcondition:display on the screen the record about student information
    Data record[11];
};
# include<iomanip.h>
# include<string.h>
# include<fstream.h>
# include<stdlib.h>
# include<conio.h>
Student::Student()//constructor


    {
    for(int i=0;i<11;i++)


	{
	record[i].id=0;
	strcpy(record[i].first_name," ");
	strcpy(record[i].last_name," ");
	strcpy(record[i].address," ");
	strcpy(record[i].city," ");
	strcpy(record[i].email_id," ");
	strcpy(record[i].rollno," ");
	strcpy(record[i].phone," ");
    }
}
void Student::CreateFile() //this class implementation is only used when the first


    { //time i run the program to create file
    ofstream fout("C:\student.txt",ios::out);
    for(int i=0;i<11;i++)


	{
	fout<<"|"<<record[i].id<<"|";
	fout<<record[i].first_name<<"|";
	fout<<record[i].last_name<<"|";
	fout<<record[i].address<<"|";
	fout<<record[i].city<<"|";
	fout<<record[i].email_id<<"|";
	fout<<record[i].rollno<<"|";
	fout<<record[i].phone<<"\n";
    }
    fout.close();
}
void Student::AddRecord() //to add record to the blank record


    {
    bool found;
    int confirm;
    int location;
    int target;
    char ans;
    ReadFromFile(record);
    do


	{
	clrscr();
	found=SearchEmptyRecord(record,11,location); //to find empty record
	if (!found)


	    {
	    cout<<"You have reached maximum capacity\n";
	}
	else


	    {
	    do


		{
		clrscr();
		gotoxy(14,10);cout<<"enter student id\t\t: ";
		cin>>target;
		confirm=Search(record,11,target,location);
		if(confirm)


		    {
		    gotoxy(14,11);cout<<"you have duplicated id, please enter another id !!";
		    gotoxy(14,12);cout<<"please press y and press enter !!";
		    cin>>ans;
		}
	    }while(confirm&&((ans=='y')||(ans=='Y')));
	    record[location].id=target;
	    cin.ignore();
	    gotoxy(14,11);cout<<"enter student first name\t: ";
	    cin.get(record[location].first_name,20);
	    cin.ignore();
	    gotoxy(14,12);cout<<"enter student last name\t: ";
	    cin.get(record[location].last_name,20);
	    cin.ignore();
	    gotoxy(14,13);cout<<"enter student address\t: ";
	    cin.get(record[location].address,40);
	    cin.ignore();
	    gotoxy(14,14);cout<<"enter city\t\t\t: ";
	    cin.get(record[location].city,20);
	    cin.ignore();
	    gotoxy(14,15);cout<<"enter email_id\t\t: ";
	    cin.get(record[location].email_id,20);
	    cin.ignore();
	    gotoxy(14,16);cout<<"enter rollno \t\t: ";
	    cin.get(record[location].rollno,20);
	    cin.ignore();
	    gotoxy(14,17);cout<<"enter phone\t\t: ";
	    cin.get(record[location].phone,15);
	    WriteToFile(record);
	}
	gotoxy(14,18);cout<<"do you want to add record again (y/n) : ";
	cin>>ans;
    }while(ans=='y'||ans=='Y');
}
void Student::ReadFromFile(Data a[])//to read the data from the file and assign them to


    { //variable
    ifstream fin("C:\student.txt",ios::in);
    for(int i=0;(!fin.eof()&&i<11);i++)


	{
	fin.ignore();
	fin>>a[i].id;
	fin.ignore();
	fin.get(a[i].first_name,20,'|');
	fin.ignore();
	fin.get(a[i].last_name,20,'|');
	fin.ignore();
	fin.get(a[i].address,40,'|');
	fin.ignore();
	fin.get(a[i].city,20,'|');
	fin.ignore();
	fin.get(a[i].email_id,20,'|');
	fin.ignore();
	fin.get(a[i].rollno,20,'|');
	fin.ignore();
	fin.get(a[i].phone,15,'|');
    }
    fin.close();
}
bool Student::SearchEmptyRecord(Data a[],int size,int& location)


    {
    int i=0;
    bool found=false;
    while((i<size)&&(!found))


	{
	if(a[i].id==0)//if id# equal to zero it means the record is empty


	    {
	    found=true;
	    location=i;
	}
	else
	i++;
    }
    return found;
}
void Student::WriteToFile(Data a[])//to write the data hold in variable to the file


    {
    ofstream fout;
    fout.open("C:\student.txt",ios::out);
    for(int i=0;i<11;i++)


	{
	fout<<"|"<<a[i].id<<"|";
	fout<<a[i].first_name<<"|";
	fout<<a[i].last_name<<"|";
	fout<<a[i].address<<"|";
	fout<<a[i].city<<"|";
	fout<<a[i].email_id<<"|";
        fout<<a[i].rollno<<"|";
        fout<<a[i].phone<<"\n";
    }
    fout.close();
}
void Student::ViewRecord()//to view certain record with using student id as primary key


    {
    int key,location;
    bool found;
    ReadFromFile(record);
    gotoxy(14,9);cout<<"Enter student # id number that you want to see : ";
    cin>>key;
    found=Search(record,11,key,location);
    if (!found)


        {
        gotoxy(14,10);cout<<"Record not found\n";
    }
    else
    ShowRecord(record,location);
}
bool Student::Search(Data a[],int size,int target,int& location)


    { //to find certain record in array with using linear search
    int i=0;
    bool found=false;
    while((i<size)&&(!found))


        {
        if (a[i].id==target)


            {
            found=true;
            location=i;
        }
        else
        i++;
    }
    return (found);
}
void Student::DelRecord()


    {
    char ans;
    int key,location,j;
    int i=0;
    bool found;
    ReadFromFile(record);
    do


        {
        gotoxy(14,9);cout<<"Enter student id # that you want to delete : ";
        cin>>key;
        clrscr();
        found=Search(record,11,key,location);
        if (!found)


            {
            gotoxy(14,10);cout<<"Record Not Found !!!\n";
            gotoxy(14,11);cout<<"These are the list of valid ID and Name\n";
            gotoxy(14,12);cout<<"-----------------------------------------\n";
            gotoxy(14,13);cout<<"ID# FIRST_NAME LAST_NAME\n";
            gotoxy(14,14);cout<<"-----------------------------------------\n";
            while(i<11)


                {
                if(record[i].id!=0)


                    {
                    gotoxy(14,15+i);cout<<record[i].id;
                    gotoxy(24,15+i);cout<<record[i].first_name;
                    gotoxy(42,15+i);cout<<record[i].last_name<<"\n";
                    j=i;
                }
                i++;
            }
            gotoxy(14,16+j);cout<<"-----------------------------------------\n";
            gotoxy(14,17+j);cout<<"Please re-enter the valid id !!";
        }
        else


            {
            found=true;
            ShowRecord(record,location);
            gotoxy(14,18);cout<<"Are you sure you want to delete this record(y/n) : ";
            cin>>ans;
            if (ans=='y'||ans=='Y')


                {
                record[location].id=0;
                strcpy(record[location].first_name," ");
                strcpy(record[location].last_name," ");
                strcpy(record[location].address," ");
                strcpy(record[location].city," ");
                strcpy(record[location].email_id," ");
                strcpy(record[location].rollno," ");
                strcpy(record[location].phone," ");
                WriteToFile(record);
            }
        }
    }while(!found);
}
void Student::ShowRecord(Data a[],int location)


    {
    gotoxy(14,10);cout<<"Student id\t\t: "<<a[location].id<<endl;
    gotoxy(14,11);cout<<"Student first name\t: "<<a[location].first_name<<endl;
    gotoxy(14,12);cout<<"Student last name\t: "<<a[location].last_name<<endl;
    gotoxy(14,13);cout<<"Student address\t: "<<a[location].address<<endl;
    gotoxy(14,14);cout<<"Student city\t: "<<a[location].city<<endl;
    gotoxy(14,15);cout<<"Student email_id\t: "<<a[location].email_id<<endl;
    gotoxy(14,16);cout<<"Student rollno\t: "<<a[location].rollno<<endl;
    gotoxy(14,17);cout<<"Student phone\t: "<<a[location].phone<<endl;
}
char main_menu();
int main()


    {
    char ans;
    char choice;
    Student StudentData;
    //StudentData.CreateFile(); //used to create file at the first time i run the program
    do


        {
        clrscr();
        choice=main_menu();
        switch (choice)


            {
            case '1':clrscr();
            StudentData.ViewRecord();
            break;
            case '2':clrscr();
            StudentData.AddRecord();
            break;
            case '3':clrscr();
            StudentData.DelRecord();
            break;
            default :cout<<"Invalid Option";//error message #1
        }
        gotoxy(14,22);cout<<"Press 1 to back to main menu\n";
        gotoxy(14,23);cout<<"Press 2 to quit from the program";
        cin>>ans;
    }while(ans=='1');
    return 0;
}
char main_menu()


    {
    char choice;
    gotoxy(14,10);cout<<"****** STUDENT INFORMATION SYSTEM ******\n";
    gotoxy(14,11);cout<<"(1)View Record \n";
    gotoxy(14,12);cout<<"(2)Add Record \n";
    gotoxy(14,13);cout<<"(3)Del Record \n";
    gotoxy(14,14);cout<<"Please enter your choice (1,2,or3) : ";
    cin>>choice;
    return(choice);
}

I've read your post, and looked over 395 lines of code, but I still don't know what your problem is. What part doesn't work? What topics are ye' having trouble with? What are your homework requirements? What line(s) of code do you have questions about? What errors and warning is your compiler producing? Why are you using gotoxy()?

The only thing I know at this point, is that "you made your own project, and it didn't work."

Before we go any further, it is important that you read this before things get really ugly.

Here is one excerpt from the link I just provided ye:

Ask a question that can be answered. Do not ask
What's wrong with my code?
Why doesn't this work?
Anything else that does not give us useful information
We're not psychic. Please organize your thoughts and provide as much information as possible to get us onto the same page. If we have to play 20 questions just to get enough information to help you, your question is more likely to go unanswered.

Edited 5 Years Ago by Clinton Portis: n/a

i want to ask that the output ie the notepad file.....which is stored in
C drive is having unusual symbols printed along with the student data...check the output notepad file by running this program in turbo c++

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