Kotlin Crash Course

A beginners guide to learning the basics of the Kotlin programming language, which is heaviliy used in creating Android apps

Philipp Lackner YouTube Channel:

Code:

Philipp's Android App Tutorial (Traversy Media):

TImestamps:
00:00 - Intro
00:52 - Why learn Kotlin?
03:01 - Installation & Prerequisites
10:12 - Hello World
13:07 - Variables and Data Types
20:00 - Arithmetic Operators
22:32 - Logical & Comparison Operators
26:20 - Strings
27:32 - If Conditions
30:40 - Null Values
35:47 - Lists
39:09 - While-Loop
41:39 - For-Loop
43:36 - When-Expression
45:35 - Functions
54:59 - Classes
57:59 - Inheritance
1:02:53 - Abstract Classes
1:05:44 - Anonymous Classes
1:08:07 - Try & Catch
1:12:22 - Lambda Functions
1:20:37 - Generics

[PhilippLackner]

Thanks for the opportunity Brad, and I hope you guys like Kotlin! :)

[Asifkabeer]

Watched the entire thing as I practiced in IntelliJ. Super helpful. This was my introduction to Kotlin and I cant say enough how simple you made it. Thank you so much Philip.

[samha]

i like how he explains the abstract class with example. well done!

[andilesimelane]

its amazing loud and clear, thanks to Brad for making its easy fr your million subscribers to easily find out about other great teachers.

[bobbylinse]

Great job! That was super informative. The only feedback I'd give, is that when you're declaring a variable of type String or type fun, to use slightly different naming conventions to avoid any confusion. For example, if you're declaring a String, avoid calling it "string" and if you're declaring a function to avoid calling it "function" It just made the lambda and generics section a little bit harder to follow is all.

Other than that, this was a 10/10. You did a great job explaining some of these concepts!

[vineetranjan]

Oh Wow. Just few hours ago I was searching for Kotlin tutorial, and here it is !

[grampygamer]

I've wanted to learn Kotlin for ages! Thank you so much, and a big thank you to Brad!

[jesusbohorquez]

Bro, you are amazing, I have been struggling with Android because almost all tutorials overcomplicate things, yet, you on the other hand, you make it so simple. Thank you, pal

[Lucas-hhoh]

This is the best kotlin crash course, I've ever found on youtube! Really good video for a refresher

[branmuller]

Wow you should make a udemy course. You explained the concepts soooo well! I will come back to this video if i ever need a refresher for OOP

[andrewiglinski]

Awesome dude. I've been meaning to learn Java for a long time. I'm definitely going to be a new subscriber to your channel bud you did a great job on this one.

[jordigarciapena]

Nice job Philipp! I'm intending to move from Java to Kotlin and I was looking for a nice way to dive in! This video just did the trick! Thanks really!

[philekiert]

Thanks so much for this, this has got me up to speed enough to make a start on the little project I'm working on!

Quick note for anyone new to programming confused by the lambda function syntax around an 01:20:00, "function" and "string" here are just arbitrary names for those objects, not keywords. They could just as easily be anything else.

[abdallahalkhassaky]

Hey Brad, just wanted to let you know that I love your content man, please do some more videos on data structures and algorithms, I need some to ace my upcoming interviews ;)

[Shrooblord]

Thanks a lot! Very nice and thorough introduction. You pointed out some great little nuances about the language that already make me excited to get started. :)

For extra credit, the final function you write -- the generic customCount() extension... if we want to be 'clean', we should rename the variable 'string' to something like 'type'. So, "for (type in this)" etc.
It pays off to have your variables named properly ;)

[ihabtanvir]

Dumbstruck at how good and huge this channel has grown. Keep it up, Brad 🔥

[anujgorasia]

Hey Brad, Thanks much for the course. It helped me significantly to jump start Kotlin.

[jonasnghidengwa]

Damn, , , bro this is crystal 🔮 you have really explained everything to the extent that, ,, even those that do not have an idea what programming is, can grasp everything... Thank you for this bro keep up💙🤜🤛🙏

[davidgentilli]

Thanks for this tutorial. It was exactly what I needed to gain a bit of familiarity with Kotlin quickly.

[Dheemantha]

great tutorial, I am a java developer newly entering to the kotlin programming and this covers kind of all the things for me. Thanks and keep up the good work.