Introduction to Kotlin Training in Norway

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This is an intensive course for developers moving to Kotlin from Java, C# or similar languages. It is designed to be conducted over four days but can be tailored based on the requirements of the delegates. The delivery is workshop based with delegates spending the majority of their time solving problems and creating sample applications.

By the end of the delivery delegates will be able to program using all the features of Kotlin, refactor Kotlin codebases in IntelliJ, perform TDD using KotlinTest and generate mock objects using Mockito. Additionally they will be able to develop microservices via both Spring MVC and WebFlux and create basic Android applications.

Delegates must be confident Java developers, or else have equivalent experience in languages like Groovy and Clojure. Knowledge of Functional Programming concepts is very helpful but not essential. If the chapters on Spring Services and Mobile Development are being covered then delegates should have prior experience with those frameworks.

Program using both the functional and object-oriented features of Kotlin
Unit test and refactor Kotlin code via KotlinTest, Mockito and IntelliJ
Write RESTful services in Kotlin via Spring Boot, MVC and WebFlux
Create responsive mobile applications using Kotlin and Android Studio

Introducing Kotlin on the JVM

Four coding paradigms within Java 9
Limits imposed by backwards compatability
The new consenses in language design
A brief history of the Kotlin language
Comparing Kotlin to Scala and Clojure
Comparing Kotlin to Swift and TypeScript

First Steps with Kotlin

Declarations and type inference
The Kotlin type system and conversions
Packages, access levels and default imports
Nullable types and operators for null safety
Keywords for selection and iteration
Options for declaring basic functions
Overloading, infix functions and ranges

Object Orientation

Decompiling Kotlin classes using ‘javap’
Understanding properties and backing fields
A detailed explanation of primary constructors
Adding extra fields and secondary constructors
Extra features automatically added to data classes
Overriding, abstract classes and interfaces
Using object expressions as event handlers
Object declarations and companion objects

Agile Development

Review of core principles of Agile development
Refactoring Kotlin code within IntelliJ
Performing TDD in Kotlin using KotlinTest
Using Mockito to separate types from dependencies
Options for BDD and Property Based Testing

Generics and Type Parameters

Revision of covariance and contravariance
Common issues with bounded wildcards in Java
How declaration site variance simplifies generics
Support for use-site variance (aka type projection)
Declaring single and multiple constraints on types

Working with Collections Part 1

Introducing the Kotlin collections library
Working with mutable and immutable collections
Support for destructuring types and collections

Functional Programming

Working with function references and code blocks
Declaring functions as parameters and return types
Using higher order functions for internal iteration
Creating your own versions of ‘filter’, ‘map’ etc…
Using higher order functions to prevent duplication
Understanding partial invocation and currying
Choosing between code blocks and local functions
Common misunderstandings regarding enclosure

Working with Collections Part 2

Basic coding using ‘filter’, ‘map’ and ‘forEach’
Testing against a predicate using ‘all’, ‘any’ etc…
Why ‘flatMap’ is such as valuable operation in FP
Distinguishing between ‘fold’, ‘foldRight’ and ‘reduce’
Converting between collection types within FP

Interoperability Between Kotlin and Java

General guidelines for mixed language codebases
Considerations when calling Java libraries from Kotlin
Obtaining and using java.lang.Class objects in Kotlin
Tips and idioms for calling Kotlin libraries from Java code

Creating Spring Microservices in Kotlin

Revision of the Spring Framework and RESTful architecture
Creating Spring Boot projects in Kotlin via the Spring Initializr
Declaring Spring MVC based RESTful services using annotations
Injecting dependencies and configuring exception handling
Creating reactive microservices using Spring WebFlux
Taking advantage of the Kotlin specific routing DSL

Creating Mobile Applications in Kotlin

Revision of the Android platform and Dalvik VM
Installing Android Studio and configuring emulators
Introducing the sample project for tracking expenses
Reverse engineering the sample activities and layouts
Performing dependency injection on Android with Dagger 2
Persisting application state using the Realm database

Why have you chosen us?

I have attended a training from Bilginc IT Academy before and I was satisfied.

I have attended a training from a different provider and it was not helpful.

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50 – 250

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Introduction to Kotlin Training Course in Norway

The Nordic country Norway, is in Northern Europe. Known for its stunning natural beauty, including fjords, mountains, and forests, Norway is also famous for its high standard of living and strong social welfare system. Norway's capital and largest city is Oslo. Tromsø, Bergen, Trondheim and Stavanger are the other tourist attracting cities of Norway.

Norway is a constitutional monarchy with King Harald V as the head of state. The country has a population of 5,425,270 as of January 2022. Norway is a relatively small country and has a relatively low population density, with much of its land area covered by forests, mountains, and fjords. Despite its small size, Norway is known for its rich cultural heritage, strong economy, and stunning natural beauty, which attracts millions of visitors every year. This Nordic country is also known for its winter sports, such as skiing and snowboarding, and is a popular destination for outdoor enthusiasts.

Norway has a long history of invention and is home to numerous more top-tier tech firms and research facilities, such as; Kongsberg Gruppen, Telenor, Atea, Evry and Gjensidige Forsikring.

Due to the country's high latitude, there are large seasonal variations in daylight. From late May to late July, the sun never completely descends beneath the horizon. Which attracts many tourists around the world to see the "Land of the Midnight Sun". Tourists mainly visit Sognefjord, Norway's Largest Fjord, Pulpit Rock, one of the most photographed sites in Norway and of course the capital; Oslo.

Oslo is considered the business center of Norway. It is the country's largest city and the capital of Norway. The city is home to many of Norway's largest and most important companies, as well as several international organizations and research institutions. Additionally, the city is a popular tourist destination, known for its scenic location on the Oslo Fjord, its many museums and cultural attractions, and its vibrant nightlife and dining scene. Some of the most popular museums in Oslo are The Norwegian Museum of Cultural History, The Nobel Peace Center, The National Museum of Art, Architecture, and Design, The Munch Museum and The Vigeland Museum.