What are header files in C++ ( PROGRAMMING TUTORIAL for beginners)

C++ header files are files that usually have .h extensions and they contain declarations of variables, functions... The implementation of those functions goes into the implementation file.
By doing this, if the implementation does not change, there is no need to recompile the implementation file, which would not be possible if everything was in one file.
This also gives us the option to reuse the functions that are declared in the header file in multiple .cpp files. In order to do that you just need to include the corresponding header file in the .cpp file that wants to use those functions.
In this C++ programming tutorial, you will learn what are header files, how to create your own header file, and how to include it and work with it.

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Contents:
00:00 - Intro
02:38 - Before you learn header files, first understand this!
07:23 - What are header files used for?
08:17 - How program compilation works?
13:16 - How to create a header file and implementation file in Visual Studio 2019?
16:45 - What is include iostream?
21:37 - What is pragma once in header files

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📚 Learn how to solve problems and build projects with these Free E-Books ⬇️
Experience the power of practical learning, gain career-ready skills, and start building real applications!
This is a step-by-step course designed to take you from beginner to expert in no time!
💰 Here is a coupon to save 10% on your first payment (CODEBEAUTY_YT10).
Use it quickly, because it will be available for a limited time.

[notavailabull]

I am so shocked at how well you are at demonstrating and explaining this concept. I am here because my C++ professor is horrible. I wish more professors were talented as you. Thank you!

[hasbia]

I am the first year of computer science and get an assignment about libraries and finally carried away to this video about this header, thank you, miss your video really help me

[karissaexplainsitadhdstyle]

Thank you so much for these videos! In less than an hour, watching short videos from you, I understand so much more than I've learned in my college course over multiple months!

[andrespalma.]

I just found this channel yesterday and I absolutely fell in love with the easy and detailed way you explain! Many things I couldn't understand about C++ now are starting to make sense. Thank you for your hard work!

[cozymonk]

Thanks for this video! I have almost no coding background and was trying to learn Game Boy development in C and needed to understand how headers work, but couldn't rack my brain around it. Your walkthrough made everything crystal clear. It was a perfect lesson.

[hh-mjnq]

This is the most amazing video of header in C++ I have ever seen in my life. This is just brilliant. I can't articulate enough praise to your way of teaching.

[angiexbreedt]

I love how you explain everything in such a clear, understandable and simple way. Universities need more lecturers like you!

[stanmoonie]

Thank you very much for this video. I took a C++ class last fall in college and due to Covid it had to be online. Well many details were not fully explored with the class due to it being online. Your video on headers really explained to me the use of these files. So again thank you for everything!!

[manideepadithya]

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[peterlantz]

Thank you for not only showing how to write the header, but showing how the computer processes each line and why it looks that way!

[hanirageh]

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[hsngraphics]

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[dr_ned_flanders]

I like your tutorials they are very clear and well explained. Looking forward to the next one.

[AlexDBall]

What a coincidence! I woke up this morning and was wondering what exactly C++ header files are..
Seems like I'm about to find out!

[lazyayye]

As a beginner in c++ you are a breathe of fresh air for coding explanations, you are very thorough and explain everything wonderfully. Thank you so much!

[dacharycarey]

Thanks a ton! I've been reading a bunch of example projects to glean information, but your clear explanation helped me put together a bunch of pieces of what I had been seeing. I really appreciate you making this video!

[vima]

I watched the entire course of c++ and yes you are so freaking good explaning and as teacher! Really beginner friendly and clear! <3

[DizzyMay]

My lecturer has spent 2 weeks talking about stacks and queue but not how to create a header file or compile it. This video helped me a lot!!