Question

Which of the following is the correct syntax to add the header file in the C++ program? *
#include "iostream.h"
<include> "iostream.h"
#include<iostream.h>
All of these​

Answer 1

Answer:

Explanation: C++ uses double quotes to include a user-defined header file. The correct syntax of including user-defined is #include “userdefinedname”.

Answer 2

#include "iostream.h"  and  #include<iostream.h>  is the correct syntax to add the header file in the C++ program. Option(a) and (c) both are correct.

• #include is used to add a standard or user-defined file in the program and it is written at the starting of the program.
• Include using "" can be used to access the current directory where the source “file_name” is located.
• Include using <> can be used to import files with a predetermined directory path. It is usually used to access files placed in the standard system directories.