Services
Technology Web App Development Mobile App Development Windows App Development Database Development UI/UX Development Cloud Development SEO Digital Marketing Guest Posting Content Writing Artificial Intelligence Data Science ERP Development CRM Development CMS Development LMS Development Business Listing Blockchain Technology Startup Promotion
Products
Data Converter Cleaner TUC - Unit Converter Import Export Survey Manager Tweet Controller
Developer
Article Blog Forum Interview Beginner News Startup Quiz
Users
Career
Apply Job Internship
Pricing
Login Sign Up Get a Quote

forum

home / developersection / forums / i need a c plus plus program which is work on
Ask Question

I need a C plus plus program which is work on

Anonymous User 3329 05 Dec 2012
Hi every one
I have a little bit knowledge in C++,
I need a C++ program which is work on:-
1.the key file is automatically generated.
2.Methods for read and write.
3.file and class objects are global.
4.file will open in binary mode.
Thanks
visual c++ visual c++
Updated 05 Dec 2012
Anonymous User
Anonymous User

Other

I am a content writter !

Message

1 Answers

Vijay Shukla
Vijay Shukla 05 Dec 2012
Report Abuse
thats your solution.

#include <iostream.h>
#include<stdio.h>
#include <fstream.h>
#include <conio.h>
#include<stdlib.h>
#include<io.h>
fstream myfile;
class key{
public:
long a;
char b;
void open()
{
char st[50];
int roll,cl;
randomize();
a =100000000 + rand()%10000000;    //generating random no for Key File.
b= 97 + rand()%26;
myfile.open ("student.txt",ios::out | ios::binary);     //opening file in write mode in binary format
cout<<"Enter student name: ";
gets(st);
cout<<"Enter student's roll: ";
cin>>roll;
cout<<"Enter student's class: ";
cin>>cl;
myfile<<"\nStudent name: "<<st;                  
myfile<<"\nStudent's roll: "<<roll;
myfile<<"\nStudent's class: "<<cl;
myfile <<"\nWriting this to a file.\n";
myfile <<"KEY FILE:-"<< b << a<<endl; //writing the key file in your file.
myfile.close();
}
void display()
{
char ch;
cout<<"THE FILE WRITTEN AS:\n\n";
myfile.open("student.txt",ios::in | ios::binary); //opening file in write mode in binary format

while(myfile)
{
myfile.get(ch);
cout<<ch;
}
myfile.close();
}
}stu;




int main() {
int ch;
char c='y';
clrscr();
while(1)
{

cout<<"\nMENU......\n1.WRITE....\n2.READ....\n3.EXIT....\nENTER YOUR CHOICE.....";
cin>>ch;
switch (ch)
{
case 1:
while(c=='y'|| c=='Y')
{ stu.open();
cout<<"Do you want to generate more keys.... Y/N\n";
cin>>c;

}
break;
case 2:
stu.display();
break;
case 3:
exit(0);
default:
cout<<"\nWrong choice entered...";
}
}
getch();
return 0;
}

MindStick Training