Kotlin training course

Basics of Kotlin

•     Objects and variables
•     Type inference
•     Nullability and smart casting
•     Composite data types
•     Control structures
•     Comments

Object-Oriented Programming For Kotlin

•     Classes and properties, interfaces, abstract classes, enums, overriding methods and properties
•     Primary constructors and initialization blocks
•     Secondary constructors
•     Data classes
•     Object expressions
•     Object declarations and companion objects
•     Nested classes
•     Visibility modifiers
•     Sealed classes

Functions

•     Vararg parameters
•     Single-expression functions
•     Default arguments and named argument syntax
•     Top-level functions and properties
•     Local functions

Function-oriented programming For Kotlin

•     Functional type
•     Anonymous functions
•     Lambda expressions
•     Simpler lambda notation
•     Lambda functions under the hood
•     Higher-Order Functions
•     Last lambda in argument convention
•     Inline functions
•     Java Single Abstract Method lambda interface and usage of them in Java methods

Extensions

•     Extension functions
•     Extension properties
•     Function type with receiver, function literal with receiver, referencing extension functions
•     Predefined functional literals with a receiver

Domain Specific Language

•     Spannables generation
•     Anko
•     Making your own DSL

Working with collections and texts

•     Collection literals
•     Basic collection processing functions
•     Collection predicates
•     Making collection flat and grouping it
•     Accumulating collections
•     Converting between collection types
•     Functions used to process texts and to accumulate collections to texts

GenericS

•     Covariance, contravariance, and invariance
•     Common issues with bounded wildcards in Java
•     Declaration-site variance, use-site variance, and type projection
•     Declaring single and multiple constraints on types

Reflection

•     Referencing types, classes, functions, and properties
•     Kotlin references vs Java references
•     Structure and types of references

Interoperability Between Kotlin and Java

•     Guidelines for mixed language codebases
•     Calling Java libraries from Kotlin
•     Preparing Kotlin to be used from Java
•     Annotations to work with Java annotation processing libraries

kotlin contracts

•     Contracts feature in Kotlin to alleviate compiler errors

Inline Classes

•     Members
•     Inheritence
•     Representation

Labs (Android)

•     Variety of Kotlin structures
•     How to use functions at different levels
•     How classes changed in Kotlin and how it influences Android development
•     What are object expression and object declaration
•     Functional programming features in Kotlin
•     How to use Kotlin Android Extensions and KTX
•     What exactly are Data classes
•     How to use Sealed classes
•     You will understand deeply Kotlin type system
•     How to define and use Extension functions
•     How to do expressive and efficient collection processing in Kotlin
•     What are and how to use Scope functions (let, apply, run, also, with, takeIf, takeUnless)
•     What are generic variance modifiers, how to use them and what are the limitations
•     Why inline classes are useful and important
•     How to create and use Kotlin property and interface delegates
•     How to use and create Kotlin DSL
•     How to write Kotlin code in an idiomatic way
•     What are Kotlin code conventions and guideline

Labs (Java/Backend)

•     Basic Kotlin structures
•     Functions on different levels and functional style
•     Kotlin OO programming in Android
•     Data classes
•     Sealed classes
•     Object expression, object declaration and companion object
•     Kotlin type system
•     Extension functions
•     Functional programming in Kotlin
•     Collections and string processing
•     Scope functions (let, apply, run, also, with, takeIf, takeUnless)
•     Generic classes and functions, making own collection processing function
•     Kotlin generic type parameter declarations and modifiers
•     Kotlin property and interface delegates
•     Reflection in Kotlin, and how to use Java reflection in Kotlin
•     DSL usage and creation
•     Interoperability between Kotlin and Java
•     Basics of Kotlin coroutines
•     Rules of idiomatic Kotlin
•     Kotlin style guides