New Course: Programming in Kotlin

Part 7: More on Classes

In part 7, dig deeper into classes in Kotlin and learn about singletons, interfaces, enums, and extensions.

1. Introduction:  Let’s review what you’ll be learning in this section, and why it’s important.
2. Open and Sealed Classes:  Learn to subclass a class and what the sealed keyword means.
3. Singletons:  Learn how to create static classes.
4. Challenge: Singletons:  Practice working with creating singleton classes and understanding when to use them, through a hands-on challenge.
5. Companion:  Create static properties of classes using the companion keyword.
6. Interfaces:  What’s the purpose of an interface? Find out in this video!
7. Challenge: Interfaces:  Practice creating your own interface, through a hands-on challenge.
8. Enums:  Learn what an enum is and how to use it.
9. Challenge: Enums:  Practice creating your own Enums, through a hands-on challenge.
10. Extensions:  Learn how to use Extensions to add abilities to existing classes.
11. Conclusion:  Let’s review everything you learned in this part of the course, and discuss what’s next.

Part 8: Properties & Methods

In the final part of the course, master the use of properties and methods in Kotlin.

1. Introduction: Let’s review what you’ll be learning in this section, and why it’s important.
2. Getters/Setters: Learn about getters and setters, and why you don’t need to create them in most cases.
3. Visibility: Discover the different method visibility modifiers and how they affect methods.
4. This: Find out what `this` is and how to use it.
5. LateInit: Find out how to initialize a property later with LateInit.
6. Challenge: LateInit: Practice using LateInit in this hands-on challenge.
7. Delegated Properties: Learn how delegated properties work.
8. Challenge: Properties: Practice using properties, through a hands-on challenge.
9. Conclusion: Let’s review everything you learned throughout the course, and find out where to go to learn more.

The Android Avalanche Bundle

If you like this course, from now until March 30th you can get it along with the rest of our new Android and Kotlin books, courses, and screencasts — at a big discount!

Our new Android Avalanche Bundle includes:

• Android Apprentice ($54.99 value): Gives you access to our new Android Apprentice book, which teaches you how to build four complete Android apps from scratch. PDF/ePub format.
• Kotlin Apprentice ($54.99 value): Gives you access to our new Kotlin Apprentice book, which gives you a deep dive into the Kotlin programming language itself. PDF/ePub format.
• A raywenderlich.com subscription ($19.99 value): Gives you access to all 8 of our new Android video courses, our 2 new Android screencasts, and access to any new courses and screencasts we release in the future.

The bundle price of $99.99 includes the first month of your subscription, which will continue at $19.99/month thereafter. You can cancel at any time and keep the books. This bundle gives you more than 20% off everything in the Android Avalanche!

The Android Avalanche bundle is only available for the next two weeks, so be sure to order your copy while you can.

Where To Go From Here?

If you want to learn Android and Kotlin development — or level up your existing skills – there’s no better way to learn than these new books, courses, and screencasts.

And this is only the beginning! We’re committed to creating more new books, courses, and screencasts on Android development, with the goal of covering Android and Kotlin in the same way that we’ve covered iOS and Swift over the years.

We truly appreciate your support in making this possible. We’re excited about this new chapter at raywenderlich.com. So order your copy of the Android Avalanche Bundle today before the deal is over!