Course Kotlin Programming

  • Content
  • Training
  • Modules
  • General
  • Reviews
  • Certificate
  • Course Kotlin Programming : Content

    In the course Kotlin Programming participants learn to use the object oriented and functional language Kotlin for software development. Kotlin is a modern statically typed language that is fully compatible with Java and runs on the Java Virtual Machine (JVM). Kotlin has modern language features such as type inferences, null safety, coroutines and unchecked exception which are lacking in Java. Moreover Kotlin code is much more compact compared to Java.

    Kotlin Intro

    The course Kotlin Programming starts with an overview of a number of important features of Kotlin. Attention is paid to the syntax simplifications in the Kotlin language compared to Java. It is also discussed that Kotlin code can be compiled not only to Java, but also to JavaScript or native code.

    Language Syntax

    Next the language syntax is covered with type inference, mutable and immutable variable declarations, if and when expressions, ranges, loops and iterators.

    Classes and Objects

    With regard to object oriented programming, class initialization, primary and secondary constructors final and open classes, abstract classes and interfaces are treated. And also attention is paid to data classes in which methods such as equals, toString and hashCode are automatically generated.


    Kotlin also supports functional programming and part of the program of the course are lambda functions, higher order function, passing functions as parameters and returning functions. Also to extension methods, destructuring declarations, nested functions and extracting parameters with the spread operator are discussed.

    Collections and Generics

    Also covered is the Collection Framework in Kotlin that supports mutable and immutable collections and sequences with lazy evaluation. Parameterized types with generics are also covered. And delegation in Kotlin with lazy and observable properties is explained.


    Finally attention is paid to the use of coroutines in Kotlin which can be considered as lightweight threads and which are excellent for asynchronous handling.

  • Course Kotlin Programming : Training

    Audience Course Kotlin Programming

    The course Kotlin Programming is intended for developers who want to learn how Kotlin differentiates itself from Java and who want to learn how to program in Kotlin.

    Prerequisites training Kotlin Programming

    To participate in this course experience with programming is required. Knowledge of programming in Java is beneficial for the understanding.

    Realization course Kotlin Programming

    The theory is treated on the basis of presentations. Illustrative demos are used to clarify the concepts. There is ample opportunity to practice and theory and exercises are interchanged. The course times are from 9.30 to 16.30

    Certification course Kotlin Programming

    Participants receive an official certificate Kotlin Programming after successful completion of the course.

    Course Kotlin Programming
  • Course Kotlin Programming : Modules

    Module 1 : Kotlin Intro

    Module 2 : Language Syntax

    Module 3 : Classes and Objects

    What is Kotlin?
    Type Inference
    Kotlin Characteristics
    Null Handling
    Safe Call Operator
    Custom Accessors
    Kotlin Exceptions
    Kotlin versus Java
    Run as ECMAScript
    Potential Downsides
    Packages and Imports
    Default Imports
    Basic Types
    Explicit Conversions
    If and When Expressions
    Loops and Iterators
    Jumps and Labels
    Elvis Operator
    !! Operator
    Kotlin Class Initialization
    Property Settings
    Calling Base Constructors
    Secondary Constructors
    Visibility Modifiers
    Abstract Classes and Interfaces
    Nested and Inner Classes
    Data Classes
    Destructuring Declarations
    Sealed Classes
    Kotlin Objects
    Companion Objects

    Module 4 : Functions

    Module 5 : Collections

    Module 6 : Generics

    Function Scope
    Local Functions
    Extension Functions
    Static Resolvement
    Extension Properties
    Recursive Functions
    Kotlin Tail Recursion
    Higher Order Functions
    Lambda Expressions
    Infix Functions
    Operator Functions
    Scope Functions
    Collection Types
    Immutable Collections
    Mutable Collections
    Collection Hierarchy
    Ranges and Progressions
    Common Operations
    Write Operations
    Plus and Minus
    Generic Classes
    Generic Functions
    Type Inference
    PECS Principle
    out Keyword
    in Keyword
    Type Projections
    Subtype to Supertype
    Star Projections
    Generic Constraints

    Module 7 : Delegation

    Module 8 : Interoperability

    Module 9 : Coroutines

    Delegation Design Pattern
    by Keyword
    Inheritance Alternative
    Delegated Properties
    Lazy Properties
    Property as Input
    Return Type as Lazy
    Observable Properties
    Standard Delegates
    Properties in Map
    Local Delegated Properties
    Delegate Requirements
    Translation Rules
    Calling Java from Kotlin
    Calling Static Methods
    Using Java Collection
    Reserved Words in Kotlin
    Calling Kotlin in Java
    Calling Kotlin Functions
    Calling Extension Functions
    Using Mutable Collections
    Immutable Collections
    Files with JVM Annotation
    Functions with JVM Annotation
    Calling Kotlin Class
    Calling Kotlin Singleton
    What are Coroutines?
    Concurrency Pattern
    Light-weight Threads
    Coroutine Scope
    launch Method
    Blocking versus non-Blocking
    Structured Concurrency
    Scope Builder
    Global Coroutines
    Cancelation and Timeout
    Coroutine Context
    Asynchronous Flow
  • Course Kotlin Programming : General

    Course Forms

    All our courses are classroom courses in which the students are guided through the material on the basis of an experienced trainer with in-depth material knowledge. Theory is always interspersed with exercises.


    We also do custom classes and then adjust the course content to your wishes. On request we will also discuss your practical cases.

    Course times

    The course times are from 9.30 to 16.30. But we are flexible in this. Sometimes people have to bring children to the daycare and other times are more convenient for them. In good consultation we can then agree on different course times.


    We take care of the computers on which the course can be held. The software required for the course has already been installed on these computers. You do not have to bring a laptop to participate in the course. If you prefer to work on your own laptop, you can take it with you if you wish. The required software is then installed at the start of the course.


    Our courses are generally given with Open Source software such as Eclipse, IntelliJ, Tomcat, Pycharm, Anaconda and Netbeans. You will receive the digital course material to take home after the course.


    The course includes lunch that we use in a restaurant within walking distance of the course room.


    The courses are planned at various places in the country. A course takes place at a location if at least 3 people register for that location. If there are registrations for different locations, the course will take place at our main location, Houten which is just below Utrecht. A course at our main location also takes place with 2 registrations and regularly with 1 registration. And we also do courses at the customer’s location if they appreciate that.


    At the end of each course, participants are requested to evaluate the course in terms of course content, course material, trainer and location. The evaluation form can be found at https://www.klantenvertellen.nl/reviews/1039545/spiraltrain?lang=en. The evaluations of previous participants and previous courses can also be found there.


    The intellectual property rights of the published course content, also referred to as an information sheet, belong to SpiralTrain. It is not allowed to publish the course information, the information sheet, in written or digital form without the explicit permission of SpiralTrain. The course content is to be understood as the description of the course content in sentences as well as the division of the course into modules and topics in the modules.

  • Course Kotlin Programming : Reviews

  • Course Kotlin Programming : Certificate