What difference bettwen iostream.h and iostream useng named retrn 0

Answer 1

nothing. iostream.h and iostream are the same.

Answer 2

mmhmm you dont have to type that anymore. in the old days you did. still the same thing though.

Answer 3

iostream. h was old method of c++ to include header files.
After c++11 it was to be written as iostream.
No need to give (.h) extension and also namespaces was introduced in that version.

Answer 4

but in this program when i write .h the program tell me that found error about iostream.h

Answer 5

MNM.