Kotlin Course - Tutorial for Beginners

[@ariepratama6657]

Your speaking accent is so clear and easy-to-listen. As an non-native English speaker, I really understand what you are explain. Thank you for your lesson for us.

[@goobar]

I'm so happy to hear you've been able to follow along and have found it useful 😀

[@mohammednagdy6661]

Same this great job

[@eugenenovikov671]

Arie, please share it with millions of Indian bloggers, who speak English so terrible that it impossible to listen to that Udemy courses.

[@jessica-tv6ep]

@@eugenenovikov671 I think he is an Indonesian not Indians

[@eugenenovikov671]

@@jessica-tv6ep no matter, they all speak undistinguishable if such word exists, i dont buy their courses cause it impossible to understand

[@RizkiFikriansyah]

I can't believe how easy Kotlin really is. Coming from someone who codes in Go and Javascript, this language is like the best combination of both worlds.

[@fieryscorpion]

Have you tried .NET 7? It's easier than all the languages you mentioned.

[@justsomebody5319]

I viewed it as a combination of Java and Python

[@joelsink8440]

​@fieryscorpion C# is probably the best imo. It combines most of the cool new features from kotlin and python with the best of java.

[@jl-dq5ch]

ppl having issues on SDK / JDK: I had the same issue but that is bc when you were creating a new project you selected Kotlin but instead choose Java then select Kotlin/jvm. This should set up the same environment as the presenter:)

[@muralimayhem]

Thank you for saving few hours I was going to spend figuring out IntelliJ and my sanity

[@pritam-kunduu]

I did this course for 4 days with interval of last session with 1 week ... Damn ... That was the longest motivation to learn some language .. I'm comming from python and the lucid syntax of kotlin really really makes me learn more of it

[@dapdizzy]

Just learned some Kotlin this eve. Thank you so much!

[@goobar]

Happy to hear it 👍👍

[@deangrowtopia9680]

@@goobar omg he's here

[@maksum4062]

Пятка есть?

[@dapdizzy]

@@maksum4062 есть. А у вас?

[@maksum4062]

@@dapdizzy нету

[@shayestaparveen315]

Your approach to teaching the kotlin programming language is very engaging and easy to follow. Programming language tutorials typically start teaching from variables, conditionals etc. and it starts to get repetitive and boring very quickly. Your approach of teaching the usage of the language rather than listing the language features one by one is very helpful and its easier to grasp the language this way. Kudos!

[@1999CrazyBones]

I have watched many “tutorials” explaining programming languages. By far, yours is not only an actual tutorial, but a very good one indeed! It has all the core values a good tutorial must have: starts from the basic elements and slowly makes its way up the ladder into more complex functionality, it is slowly and carefully explained with simple examples (I have seen people using frameworks for a graphic user interface just for a hello world in a new language...) and shows the result for both the valid cases and invalid cases as well as ways to tackle common problems that may appear. I had zero knowledge about Kotlin walking into this tutorial and I have quite a good idea of how it works now by only watching the video (when I start actually writing code, this will be consolidated) also thanks for all the Java analogies, they really helped understanding some of the last concepts. 11/10 on this tutorial, 11/10!

[@manojpanchal1435]

Seriously.....? Actually even I have just started my course so before starting this video I decided to go through the comment section for checking how good this video is because I have zero knowledge about kotlin so thanks a lot for your review it means a lot for me.......

[@Ewig_Luftenglanz]

glad to find this course, there are so many courses aout there about android development using kotling without really digging in or teaching the basics of the language that you end up understanding NOTHING of what one is doing!!! Thank U SO MUCH!!!

[@joaokavalciuki3853]

As a non native speaker and not even fluent I can say: Your way to speak is very clean, concise and easy to understand

[@goobar]

happy to hear it!

[@DanielGomes-s2z]

This is amazing, really condensed a lot of information in less than 3h. One of the best programming tutorials that I've followed, Thank you

[@hyungtaecf]

Thanks for the tutorial! I thought I could do it all in one day, but it toke me 3 days to do it

[@goobar]

There's a lot to take in. Doing it all in one day would be a lot for anyone. Great job on sticking with it and making it through! 👍👍

[@vojtechschlemmer6085]

Hi Nate, your tutorial is awesome! It's just what I needed - clear and simple explanations, going from easy to more complicated stuff and on top of it your accent is very easy to listen! Thumbs up!

[@goobar]

Happy to hear you enjoyed it 👍

[@alexanderkhitskov4691]

Have just finished this course. It's very good for getting started with Kotlin. Many thanks to the author!

[@goobar]

You're very welcome! Glad it was helpful 💯

[@sviatoslavoleksiienko8523]

Man, you've done really great work. Great material, normal micro, awesome voice. And, despite the big deal of subscribers, no ad. I wanna say that we appreciate your work and thanks.

[@michaelkolta2720]

This is the best free Kotlin tutorial I have ever seen. Well done! I don't know what's up with the 26 dislikes... how could you possibly dislike this?

[@goobar]

😀. That's very kind of you to say. Glad to hear you enjoyed it 👍👍

[@anuj8825]

Thank god you exist !! World would have been difficult place to live without you .

[@darshans1190]

Just finished watching and coding. The tutorial is simple and very neat. All the basic concepts which are needed are covered. Thanks a lot, mate :)

[@goobar]

You're very welcome! Thanks for watching.

[@sgt.boris4713]

you became a programer in kotlin

[@epochshot589]

Kotlin is really similar to python and is really easy, very good explanation Nate sir, you are a legend :)

[@borispsalman]

so thats good for me because at first i was trying to go with kivy given that i kind of know python but ive heard its better to go with kotlin if i want to make proper app

[@itspapu]

Best tutorial to start with learning kotlin, crisp, no ad, more practical. thanks

[@goobar]

😀👍👍 Glad you enjoyed

[@mli8847]

it is just so good, i do not speak good englisch, i watched it in 2x speed and could still understand everything. thank you :))

[@goobar]

Glad to hear you enjoyed it 👍

[@woshisheili1541]

hahaha

[@patrickjay6434]

Excellent tutorial. I'm quite excited about this language.Never looked at it before but it looks good

[@goobar]

🙂 I'd encourage you to give it a look. It's really quite nice, and can be used in a variety of domains

[@czarnaelka7604]

I was looking for a good intro to Kotlin. This is perfect! Thanks!

[@goobar]

Glad you enjoyed!!

[@pedriuskii]

You rock. Theres so many things kt can do, it made me sleepy just seeing all your examples. It gets complex, kinda hard to read a times. But you rocked it

[@goobar]

Definitely a lot there! Thanks for sticking through it 😀 Hope it helped 👍

[@kyleMcBurnett]

Thanks!

[@footballCartoon91]

@1:41:59 just because we wanted to use the same function defined in the interface which takes in a parameter in the form of its read only property aka "val" we need to make multiple inheritance and override the property in the respective implementing classes

[@caidencavallone7410]

I wanna thank you so fucking much. I came from Udemy's Tim Buchalka's tutorial. I couldnt understand a thing. He threw information at me expecting that I could get it. Before I file a refund, I thought I should check KZbin. You deserve my money, but youre doing it for free even. Fucking hero. You're smart and you know what you're doing delivering the information.

[@goobar]

Glad you enjoyed it!!

[@web3wizard381]

I wish you would put ads, you deserve compensation for your great work, I would gladly watch the ads.

[@kenm2595]

Simp

[@dejangegic]

@@kenm2595 ok boomer

[@СергійКот-э7ф]

Donate if want to say him thank you. But its good that they removed adds

[@maleekdidthat]

@@kenm2595 LMAO

[@arcticheroh]

People are allowed to do stuff for free and just to give back to the community lol

[@vaidadryzaite638]

You are awesome! Best tutorial on Kotlin there is out there ! Thank you!

[@mateenmehmood5675]

Important navigations : 0:50 : Create your first Kotlin Project 6:33 : Variables 21:30 : Basic Functions 32:50 : Collections & Iterations 49:22 : Vararg, Named arguments & default parameter values 1:00:27 : Classes 1:20:11 : Visibility Modifiers 1:22:37 : Interfaces 1:32:57 : Type checking and Type casting 1:36:18 : Inheritance 1:43:07 : Object Expressions 1:45:07 : Companion Objects 1:49:51 : Object Declarations 1:52:41 : Enum Classes 1:58:16 : Sealed Classes 2:07:00 : Data classes 2:12:25 : Extension Functions/Properties 2:16:37 : Advanced Functions

[@Abhishek-fe3zs]

Thanks!

[@robertvanhousen1015]

Thanks for this. Definitely one of the better tutorials I've seen on Kotlin. Well done.

[@goobar]

Glad you enjoyed 👍👍

[@manelll]

I got tired of searching how to code videos so now im trying it for real!

[@goobar]

😀 Good luck 👍

[@goobar]

@Que_Rico Learning a language on its own likely won't land you a job. I think it's more helpful to think about what you can build with a language. Learning Kotlin can enable you to build a variety of things that likely have different demand in the job market. If you learn to build Android apps with Kotlin there are many jobs out there. Writing backend code with Kotlin could help find a job as well. I'd encourage you to think of what types of projects you want to work on, then determine if Kotlin is a viable tool for that project. If it is, and there's a demand for that work in the job market, then Kotlin would definitely be a positive step towards landing a job.

[@cortisol_induced_coma]

This tutorial is great for people who have already worked with Java, but not really for beginners or people who know a language with a very different syntax (like Python). I recommend explaining some things like getters, setters, maps, and when-statements in further detail (or at least put a disclaimer at the beginning of the video that this requires prior knowledge on some of these topics).

[@masterok2746]

yes, it is!

[@UndeadRumick]

Hello, thanks for the awesome tutorial. I love the way you speak slowly and clearly so even if I am not a native English speaker, I can understand everything. Plus your tutorial really helped me out with an intro to Kotlin. Great job

[@AC-fi8ge]

This basic overview was simply amazing. Thanks, Nate!

[@goobar]

You're very welcome! Thanks for watching

[@kristaqvin]

Who else is learning Kotlin for Android development?

[@whocares4598]

i am learning it to help with uniciv

[@nostalgia5031]

No, I am learning how the "SkIDE" works.

[@abdullahhossain9692]

@@JohnJohn-nu7tr how was it? :D

[@whocares4598]

And now I submitted pull requests!

[@Successtec]

I am learning it newly

[@md.imamulislam7]

This is beautiful. It looks like someone took the best features of C# and added them to Java, and Kotlin was born.

[@goobar]

I do believe there are c# influences from JetBrains having worked on c# tooling for years and wanting to pull in the best parts of various languages.

[@deniscordoni9950]

A very concise and flowing explanation where everything comes up in the right moment and at the right place makes of this explanation a really nice introduction to this new and beautiful language. Thank you! The only section where I got puzzled was that concerning the sealed classes, but I hope everything will go clear giving it another look.

[@sudhir1274]

Very good tutorial. Concise and Clear. This is my first tutorial on Kotin and I would to thank you for putting this together and allowing free access to developers new to Kotlin.

[@goobar]

Glad you enjoyed it! You can find more Kotlin tutorials on my KZbin channel as well

[@rezashatery]

this video is the best tutorial that I have ever seen, thank you so muchhhhhhh

[@goobar]

Wow! very high praise. I'm happy to hear you found it useful!

[@BNuwan123]

Hey goobar...im watching this for 5days and doing learning kotlin as you guide me... and finished today... ithink now i have a very good fundamental ...thansk a lot for that...the most hard part is from the intrrface....its hard to understand...can you do a another video about it with different example..thansk a lot man...

[@goobar]

You're looking for another video specifically about interfaces?

[@lshomedesign]

Wao... Amazing language for app development.💐💐💐💐💐💐💐💐💐

[@StEvUgnIn]

Not only

[@sefovsky]

Sadly it cant compile as exe

[@StEvUgnIn]

@@sefovsky Sure you can... target Kotlin native. Throw Android Studio to the trash bin

[@StEvUgnIn]

Kotlin native has been measured slower than Kotlin JVM. Which is sad :(

[@wateryagarvideos5186]

@@sefovsky Eh, just use the JVM. It will give you support for both Java and Kotlin.

[@YulbazZakirov]

Finally some proper content for beginner developers! Thanks!

[@4thfugee]

Thank you for the content. Straight to the point, well explained, and no fluff.

[@goobar]

Glad you enjoyed 👍

[@GouravSinghalMusiTech]

This tutorial is close to the perfection! I can't point out even a small improvement in this! Thanks much!!

[@Teekkanee]

This is EXACTLY what I needed. Thank you.

[@goobar]

Glad to hear it... Hope it helps 👍👍

[@pepelegal333]

You should explain from the beginning that this tutorial is meant for people who already know Java. My mum never told me what an anonymous inner class is, so you lost me after "inheritance". That said, I found the tutorial very clear and easy to follow, for at least the first hour and a half.

[@goobar]

That's a fair point 👍. I'm happy to hear the first part, at least, was helpful.

[@kewalmz]

What a wonderful language, everything is thought through while designing the language constructs. Highly recommended course. Beautifully explained. Thank you.

[@64imma]

I've been learning programming for a year more or less. I'm pretty comfortable with python now and trying to get better with C#. I would like to get good at Kotlin and maybe eventually learn Swift, because I'd love to get more into Android and Apple app development. With C# I really want to focus on game development via unity, and python can serve as a more general purpose programming language.

[@splendid_amateur]

Well it was not my plan to learn Kotlin, I itend to learn Java, but this course is so good, I don't have other choice hahaha

[@goobar]

Haha. You could always learn both 😀

[@De-tp5mq]

Java sucks

[@The95Studios]

I tried Java too...still stock on a darn tree exercise lol so this is encouraging.

At first, I thought, "Again, a video for people who don't know how to turn on a computer, " but it quickly got interesting. Everything that you need to know if you already know how to program and you wanna know the syntax of Kotlin.

[@abdelrahmankhaled7575]

Really it`s an amazing tutorial I loved it every minute in the video is important but I see that u should mention that this tutorial is for anyone who has at least some experience about any oop language like java

[@goobar]

Yeah. That's a very fair point. The target audience should have been called out more clearly

[@samdukes8935]

That was an excellent tutorial, but as a fairly new coder the second half of this just fried my brain completely haha. I will probably be returning to this many times...

[@Wizartar]

This is a great course!! if you know any C++/Java everything just makes sense

[@goobar]

Very true. Once you know 1 language, it becomes a whole lot easier to understand others.

[@zahidrahman2427]

Your course content links is the most considerate idea especially for learning. One can go back again and again until the tricky topics are well understood. I would also like to say thank you sir.

[@goobar]

😃 👍👍

[@FINSuojeluskunta]

Within the first 30 minutes, this seems like a blend of Java and C++. My only complaint, if you could say, is it seems like the compiler does a looooot of work, I would like to see examples of how the compiler expands things and see what is actually going on. I imagine there is somewhere to see that in android-studio

[@Kalabenos]

The syntax also has a decent chunk of Pascal in it.

[@AlexanderSuraphel]

Any compiler does a looooot of work. What is the problem with that?

[@ScamCast]

Coming from a python\javascript background with very little Java knowledge. Looking to make Android apps with Kotlin. This has been very helpful. Thanks 🙂

[@ORagnar]

I find it interesting that with Kotlin they moved away from the pure class style of Java, and moved to a C++ sort of mixture between procedural and class programming.

[@wizardy6267]

I bet you have not try type script/JS, they created a whole set of functional programming features set aside the object-oriented methodology. When I working on a 2-year-old project, I feel like I need to rewrite every single component. And what do you think c++ is moving toward? My understand is Python...

[@jgdevelops8440]

I can relate to this!! As soon as I saw fun main() { println() } it made me immediately think of C++ for some reason. Glad i'm not the only one,

[@hassaniq0777]

​@@jgdevelops8440lool same😂

[@mohontastutorials7470]

I am Bangladeshi, but I understand your English very well. Your speaking quality is really awesome sir.

[@anastasiashpit9663]

It seems that I've fallen in love with Kotlin. Thanks for such easy-to-understand tutorial!

[@goobar]

Very happy to hear you're enjoying Kotlin 😀👍👍

[@AMITMAURYA192]

Thanks Nate. it helped me alot. thank u very much bro.

[@goobar]

You're very welcome! Glad it was helpful 💯

[@mafazkhan8996]

Tq soo much i waited for ur video for so long i love u for making kotlin at right time tq sooooo much

[@goobar]

I hope it's helpful for you 😀 👍

[@mafazkhan8996]

@@goobar yes sir it is and tq again u r a life saver

[@kavousgamouri5146]

that was awesome dude , println("you are second to none ♥")

[@shadow_blaxe_1239]

UPDATE:WORST TUTORIAL FOR BEGINNERS THE WHOLE VIDEO IS ASSUMING YOU ARE A JAVA EXPERT. I DON'T LIKE JAVA THAT'S WHY I AM LEARNING KOTLIN IN FIRST PLACE......... When I first watched it with no prior programming experience, I didn't understand a thing. Now after having learned OOP, Array, Classes, Main function, fundamentals, etc, from Python, Js, React, I finally understand it. It is a very good tutorial but in my personal opinion it is a too fast paced. But still a great tutorial for Kotlin. To anyone watching this without any programming experience or knowledge please try to learn the fundamentals like "if-else" Before watching this video

[@slobom.6744]

Great video, compressed and displayed in clear and concise way, thanks a lot!

[@codinginflow]

Yea, Nate 😎

[@goobar]

Yea, Florian 😎

[@robertshopov4088]

Function Parameters: At 29:10 my program had something different, instead of havin to write itemTOGreat: "Kotlin", for the program to work I had to do itemToGreat = "Kotlin". Why is this? The error I got when writing what you demonstrated returned with "Unresolved reference: itemToGreat" and and unexpected token suggesting to create a new local variable or parameter or to separate expressions in the same line with " ; ". If youtube would allow images on comments id surely show you what I recieved, hopefully I you could understand what I am trying to explain from my POV hahahaah. thxhtx btw, reall, realllyyy great vid!!! keep it up yeet.

[@simsolam]

Tutorial is precise, understandable and beautifully presented. Thank you so much 😊🙏🏻

[@goobar]

You're very welcome! Glad you enjoyed it!

[@marvellouschimboza9621]

My first time doing Kotlin and you made it an easy journey for me - Thank you :-)

[@MocaCDeveloper]

Is it me, or does Kotlin just seem like a language that satisfies the unknown need all developers have deep down

[@goobar]

haha. I can't speak for others, but I've certainly enjoyed learning and using it

[@aksharpatel17]

Good luck

[@skewty]

The code reads not too different than Python with { } instead of tabbing and camelCase instead of snake_case. Not quite as concise as python but far better than regular java.

[@AyushGupta-wn6zd]

_this one sparks joy_

[@phillaysheo8]

Java is better

[@headoverbars8750]

Wow. F******* amazing good. I just finished implementing many of the structures in Bob Sedgewick text Algorithms ... banging my head and never fails. turn this on and solution within minutes... it's uncanny.

[@dibley1973]

Great video. I'm just under an hour in so far and coming from a C# background and I am finding your tutorial so clear and easy to follow that I am considering learning Kotlin now to have it as another tool in my commercial development toolbox. As others have said you articulate ideas clearly and should really be doing tutorials professionally. Have you considered signing up with pluralsight and become a tutor on there?

[@goobar]

Thank you so much. That's a great compliment. I actually am working on a Pluralsight course right now.

[@jeancarlovegabejarano1950]

Great tutorial dude, also the content section about the course is amazing

[@rogaldorn7016]

Well, it is strange. However, the code which you showed at 29:35 doesn't work on my Linux machine. Instead of: "... sayHello(itemToGreet: "Kotlin") sayHello(itemToGreet:"World")..." I had to write "...sayHello(itemToGreet = "Kotlin") sayHello(itemToGreet = "World")..."

[@goobar]

I can understand the confusion here. I didn't actually type the "itemToGreet" part in that line. After typing the String, the IDE added the label as a visual guide, but it's not actually code. My apologies. I didn't notice that during the recording, and ideally would have explicitly pointed that out

[@llanciousluyor9059]

Me too i stuck for long minutes :(. So i decided to view the comments who are complain in this lesson(function). I used the eclipse by the way

[@AbhinavKulshreshtha]

@@goobar Another thing I wanted to point out, at 52:20 IDE added `...itemsToGreet: ` but `...` is not working. Instead I just had to use `itemsToGreet=*interestingThings` .

[@devvilboyy676767]

You've covered so many topics others have not. This is really well done. By referencing how it's done in Java, it really speeds up the learning process for experienced developers.

[@andreburger1981]

Great clear steps and a very logical approach. Thank you for your hard work with this.

[@EngideerTech]

Very very nice Kotlin introduction. Neither too basic nor too complex. 👍

[@pawlack]

Is this dadjoke popular? "Declaring functions in Kotlin is fun" :D

[@goobar]

It is with me 😀. I gave a conference talk once titled simply "fun() talk"... it was all about functions it Kotlin

[@abhishekrawat8579]

🤣🤣🤣

[@Sunny-zh6go]

fun begins () It is where fun begins

[@ShiroCh_ID]

@@Sunny-zh6go yep the Fun also a funtion so to make something fun it must funtion properly 😂😂

[@Luke-Norris]

sometimes it's private fun...

[@TokitoTheMan]

Just started learning it, what a beautiful language

[@InstantTeaTV]

Thanks for the tutorial. Your explanations are easy to understand. I hope future tutorials will have a better sound quality. You sound a bit muffled in this one.

[@Jesus_was_God]

i cant hear him

[@mdali008]

You make my life too easier . lots of love from bangladesh

[@goobar]

👋

[@pranavgadekar5842]

Hey Nate, great tutorial. Was really easy to follow along and you did a great job explaining the concepts. Thank you!

[@goobar]

You're very welcome! Glad you enjoyed it!

[@thorzweegers7616]

Excellent! Thanks! Great tutorial. I'm convinced ;) I'll spend a bit of time getting the hang of Kotlin to save time in the future. Love how you keep mentioning the differences to Java. Had you on 1.5x speed for the first half, then switched back to regular ;)

[@logan469]

I'm really confused, I think some of the things in IntelliJ are different for the newer version, please could you make an updated tutorial.

[@funky-twig]

There is no Kotlin in the IDE, only Kotlin Multiplatform. Fell st the first hurdle.

[@logan469]

@@funky-twig oh ok

[@reetikasrivastava3136]

mind blowing tutorial!! fallen in

[@goobar]

😀 👍👍

[@Caarolinacabj]

Why tf don’t you put ads your content is so great!!!! I’m happy I found you 😭❤️

[@cristianmira8314]

It is a big one to get started with Kotlin, thank you very much.

[@irinak3358]

Thank you very much for such a great tutorial! I've learned Java (love it) and to be honest, I'm a bit terrified with that amount of flexibility in Kotlin. All I can think about is "That could be such a mess".

[@goobar]

The flexibility definitely has potential to be abused. I think a good rule of thumb is to take advantage of features to make the code concise, but not so concise that it's no longer easily readable.

[@etange6817]

the flexibility is mind blowing........

[@lookingforward098]

Who else is learning Kotlin for Androidn Development ? 🙋‍♀️✋

[@medievalogic]

doing a big mistake - learn flutter

[@shaileshteli4341]

5:26 Doesn't put semicolon after end of statement. Me who was coding in java, c#, c, c++ and javascript till now: WAIT THAT"S ILLEGAL

[@goobar]

😂 Welcome to the future 😉. In all seriousness, I still sometimes accidentally add a semicolon when I don't need one

[@kapsowe]

The best kotlin intro so far

[@goobar]

That makes me very happy to hear! Glad you enjoyed it 🙂

[@Saptarshi.Sarkar]

35:50 Can anyone explained what happened here? Why was it not necessarily to define the interestingThing variable first?

[@goobar]

In the context of a for loop like that, `interestingThing` is essentially defined as a new variable for each element in the collection, but only within the scope of the for loop. Within the loop, it will act like a val variable

[@jimitsoni18]

You deserve more views my guy

[@ramijemli4726]

Hey Nate, awesome course! What is the name of the IntelliJ theme/plugin used in this video?

[@ramijemli4726]

Found it. For anyone looking for this, it's the Material Theme UI plugin.

[@goobar]

Looks like you found it 🙂. Using Material Theme UI plugin with the Night Owl editor theme I believe

[@AtheistGeek]

@@goobar You're right, but it is version Darker. You can see theme name on bottom right of his screen. I prefer Deep Ocean.

[@Alberto_Cavalcante]

Thanks

[@gersonadr2]

I don't stick to 3h tutorials ever. Got totally sucked in by yours. Thanks a lot! Can you make another one about co-routines?

[@crazy9780]

I can't really get started because my intellij are very different from yours

[@divyanshrawat2859]

perfect , i am from c++ background and i found this explaination very simple and good .

[@AdamDjellouli]

C for microcontrolers would be interesting to watch.

[@abhishekgururani6993]

in time stamp : (1:20:12) Visibility Modifiers - Public/Private/Protected/Public, it should be "Default" instead of the last "Public"

[@jjjj-ms1ln]

leaving at 1:27:18

[@sheffomp]

Such a great Vid! Thanks! I look forward to more content about Kotlin!