why we dont use .h with iostream file but we use .h with all other header files
Regarding header files
@Namanjain123
It’s just the name of the header file - < iostream >
Also this isn’t the only header file which doesn’t have the .h extension. Infact , most other header files don’t have it.
Example : < algorithm > , < cmath > , < cstring > etc.
Infact , the ones using the .h extension are the rare ones.