1.      Program to read content from one file and write it to another file.

1. #include <iostream.h>

2. #include <fstream.h>

3. #include<conio.h>

4. int main() {

5.     ifstream fin("input.txt");

6.     ofstream fout("output.txt");

7.  

8.     char ch;

9.     cout<<"content of 'input.txt' file is: \n";

10.     while (fin.get(ch)) {

11.                 fout << ch;

12.                 cout<<ch;

13.     }

14.     cout<<endl;

15.     fin.close();

16.     fout.close();

17.  

18.     cout << "File copied successfully!" << endl;

19.     getch();

20.     return 0;

21. }

23.