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Kotlin training course

Develop Android Apps or Java Backend applications with Kotlin - Reach A Growing And Powerful Mobile Web Audience

JBI training course London UK

"I really enjoyed the practice work on the Android coding classes and Android app. I also thought that the basic Kotlin was taught thoroughly and with simplicity by the excellent trainer."

DCF, Senior Developer, Kotlin, February 2021

Public Courses

20/01/25 - 3 days
£1795 +VAT
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03/03/25 - 3 days
£1795 +VAT
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14/04/25 - 3 days
£1795 +VAT
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Customised Courses

* Train a team
* Tailor content
* Flex dates
From £1200 / day
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JBI training course London UK
  • Learn Basics of Kotlin with Objects, variables and structure
  • Understand Object-Oriented Programming for Kotlin
  • Explore Functions, arguments and syntax 
  • Utilise Function-oriented programming
  • Use Extensions: properties and functions 
  • Learn Domain Specific Language
  • Work with collections and texts
  • Learn Generic with Covariance, contravariance and invariance
  • Understand Reflection: types, classes, functions, properties and Kotlin references
  • Apply Interoperability Between Kotlin and Java
  • Acquire skill in Android KTX for Android Backend and Java
  • Develop Android Apps or Java Backend applications with Kotlin

Course Details

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

  •    Function types with receiver
  •     Lambda expressions with receiver
  •     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

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

Coroutines

  • Understanding suspend functions
  • Structured concurrency
  • Scope creation
  • Essential Kotlin Coroutines use-cases

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
  •     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

 

JBI training course London UK
Software developers with Java or equivalent language skills looking to develop commercial applications on Google's Android platform or Backend Applications with Kotlin
5 star

4.8 out of 5 average

"I really enjoyed the practice work on the Android coding classes and Android app. I also thought that the basic Kotlin was taught thoroughly and with simplicity by the excellent trainer."

DCF, Senior Developer, Kotlin, February 2021



“JBI  did a great job of customizing their syllabus to suit our business  needs and also bringing our team up to speed on the current best practices. Our teams varied widely in terms of experience and  the Instructor handled this particularly well - very impressive”

Brian F, Team Lead, RBS, Data Analysis Course, 20 April 2022

 

 

JBI training course London UK

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More about this course

Our Kotlin training course will focus on teaching Kotlin from beginner to an intermediate/advanced level.

Typically Kotlin is used for Development of Android Apps or Backend applications with Java.

This course will help delegates understand the pure Kotlin Language and Best practices for using it in anger. Delegates can choose to keep Labs as "vanilla" Kotlin, or to apply to Android or Java development.

In this course we will focus on practical Kotlin development. We will briefly go over the Kotlin language in the ways it is equivalent to Java. We will spend a bit of time introducing concepts that Kotlin provides that are not found in Java.

Following that, we will begin to learn Kotlin development by creating an Android application using all of the modern libraries and technologies that are necessary for a successful commercial application.

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