Programming with Kotlin - Masterclass | Complete Course

Excellent course, above all I found a clear explanation method. Everyone divides the courses into individual topics, but I must say that I found the way of accompanying you very nice, not only in seeing the code itself, but also in explaining what's around it. Precisely because of his way of teaching, I immediately purchased his other courses on Kotlin, and I was satisfied, I personally really like how he explains.

This course is really good. It covers many topics in Kotlin with examples. I really recommend this course.

The basics and particularities have been discribed in a sufficient manner. The single course sections are kept short, thus it was easy to follow along and try out everything for myself. Only negative point for me: The questios in the quiz often are too basic and only refer to coding in general, not Kotlin specifically. With basic coding knowledge you can answer 90% of them without ever having seen Kotlin code. All in all it was a great course with all neccessary topics to start programming in Kotlin. Especially the differences to Java came across really good.

The author didn't walkthrough the steps for setting up the environment in the first lecture. Such as mentioning wether or not it is a gradle project or the java version, etc.

I really wanted to like the course. It actually started really good, but unfortunately, for some unknown reason, the instructor started treating the audience as intermediate level developers instead of as beginners as he had done at the start of the class. He switch from moderate and detailed oriented to using language and common practices that are used by more experienced audiences. Overall, I have no doubt he is a great developer, but he is not a very good instructor. I would suggest go somewhere else if you are a beginner.

Very thorough and detailed. I am able to watch at increased speed for topics I already know, but the instructor includes nice tips along the way - things I have forgotten or never knew about, so I slow it back down to normal anyway. This is helping me to strengthen my fundamentals for interviewing in Kotlin. Also impressed because I myself could hardly create a course in a second language.

An awesome course for anyone who wants to learn the fundamentals of Kotlin, being a beginner or a professional this is the right course for you. ??

Good kotlin course. Covered many topics and full of information so it will take some time and practice to process all of that in my head and put everything in it's place. I would recommend taking this if you are interested in kotlin, both new programmers and some experienced. My most favorite section was Exception Handling and unit testing lecture. Only wish is that unit testing had some more lectures but it's big topic so maybe in the future a course about that would be great :)

Very excellent course. I have learned lot of things which I unknown. With the help of this course I have implemented my own project from scratch.

I can live with being greated in each section with "Hello and welcome back. In this video..." ;-) When you watch multiple sections one after the other there's "no flow of language" due to the repetitive intro and outro of each video. For a beginner course it is not acceptable to be confronted in video 2 and 3 with a ready prepared project. How was it created? How do I get to that point? Only the presenter knows. Where's at least a ZIP of that initial project? In the videos "Ktor" is visible right of the project name. What is that? When I choose new project in IntelliJ there's "Ktor" (Caught me eye as it was seen in the project explorer) right above "Kotlin Multiplatform" in the list. What should I choose? I'm lost at 6 minutes into the course already. Luckily, a colleague could point me to the right setup: Just ignore all the list entries and in the top "New Project" page you need to select "Kotlin" as language, "Gradle" as Build System and untick "Add sample code". That should have been shown in video 2. That one minute spent would've spared me early frustration. About the content: It really starts very basic. So basic that you can actually learn programming here. If you're experienced in other languages many early topics may bore you. On the other hand it's nice to see the Kotlin-way of doing things, e.g. template strings, list iteration or string iteration. Some concepts are the same as in other languages, but are called differently, e.g. "null coalescing operator" is called "safe call" in Kotlin, so better watch and listen carefully before engaging Kotlin developers so that you use the same terminology. I wondered why the ternary if-else was not shown in the if-else section. Well, tl;dr; there'll never by a ternary if-else in Kotlin. You got to deal with it. What I like is the keyboard shortcuts which are even part of the quizzes. Cool. Some additional mouse clicks that can be replaced by short cuts throughout the course: run (CTRL+SHIFT+R), Duplicate line or selection, refactor/extract variable, refactor/rename. You may also want to learn and configure "Duplicate line or selection" early in the course to speed up your typing and learning experience. ;-) The initial project, at least the one that I managed to create, contains a test folder. The course really deserves five stars (although there are a few things that should really be improved) as it even covers unit testing. It is just hidden in "Exception Handling". That makes it a really complete course in learning programming from 0 to Kotlin. I really enjoyed the collection operations. Lambdas are explained good as well. The middle part is stuffed with many different topics. Make sure to take breaks to give your brain time to process it. Things that really should be improved, maybe re-record and update the videos one day: 1st: In video 2 invest the one minute and show how to create the initial sample project. 2nd: In every video (sorry, but yes): Skip the "Hello and welcome back" intro. Please also add more variety to the closing sentence "and for this video this should be all." Imagine someone listening to the videos one after the other. 3rd: I didn't count, how many Person data classes I recreated throughout the course. Code reuse by putting that (and Animals, Dog, Cat, e.g.) into an own file between the videos would certainly speed coding along up. That would also give the opportunity for another short-cut: Refactor/Move ;-)

I was in shock to see that he does not show how to create a project. There are several alternatives and in my experience things usually do not go smoothly. I have managed too create projects through trial and error but I am not sure I can repeat the procedure. He also does not discuss what are the different types of projects, what is Gradle, etc. The course should begin with those things.

I can't say this is a perfect course but, this course is good for beginners and those who want to learn kotlin. absolutely I recommend it

Really good masterclass! Of course, it is not comprehensive and some advanced features of Kotlin are omitted, but the learning style is excellent!

The best Kotlin course, as usual your explanations are very simple and goes in depth of concepts. Thanks you so much.

It is a very complete course, all the classes are very well explained. Stefan is one of the best and most dedicated teachers I could find.