1.      Program to read and write binary data in a file.

1. #include <iostream.h>

2. #include <fstream.h>

3. #include<conio.h>

4. int main() {

5.     ofstream fout("data.bin", ios::binary);

6.     char num1[100];

7.     cout << "Enter Content: "<<endl;

8.     cin >> num1;

9.     cout << "Writing Content in file 'data.bin'";

10.     fout.write((char*)&num1, sizeof(num1));

11.     fout.close();

12.     ifstream fin("data.bin", ios::binary);

13.     char n1[100], n2;

14.     fin.read((char*)&n1, sizeof(n1));

15.     fin.close();

16.     cout << "Content of file 'data.bin' is: " << n1 <<  endl;

17.     getch();

18.     return 0;

19. }

21.