C++: Basic Concepts: Hello, World!: Your First C++ Program(Part 2)

Your First C++ Program
The C++ compiler ignores blank lines. In general, blank lines serve to improve the code's readability and structure.

Whitespace, such as spaces, tabs, and newlines, is also ignored, although it is used to enhance the program's visual attractiveness.

Let's check some other lines. (You don't need to read this)

Try It Yourself
 * #include
 * using namespace std;
 * int main
 * cout <<"Hello World!";
 * return 0;
 * }
 * return 0;
 * }

In codes, the line using namespace std; tells the compiler to use the std (standard) namespace.

The std namespace includes features of the C++ Standard Library.