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Programming using Kotlin

Course outline

3 days
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Duration

3 days

Overview

Kotlin is a programming language introduced by JetBrains, the official designer of the most intelligent Java IDE, named Intellij IDEA. This is a strongly statically typed language that runs on JVM. In 2017, Google announced Kotlin is an official language for android development.

Kotlin is a new open source programming language like Java, JavaScript, etc. It is a high level strongly statically typed language. Currently, Kotlin targets Java and JavaScript. It runs on Java Virtual Machine.

Kotlin is influenced by other programming languages such as Java, Scala, Groovy, Gosu, etc. The syntax of Kotlin may not be exactly similar to JAVA, however, internally Kotlin is reliant on the existing Java Class library to produce wonderful results for the programmers. Kotlin provides interoperability, code safety, and clarity to the developers around the world.

Target Participants

This program is directed at programmers interested in programming with Kotlin.

Program prerequisite

This course is designed for Developers who wish to know how to develop applications using Kotlin. Having a basic understanding of Java Programming Language is an added value.

Course Objectives

Participants will learn how to:-

  • Set up and install Kotlin and InteliJ IDEA
  • Understand all concepts of Kotlin Programming Language
  • Understand the relationship between Kotlin and Java
  • Create your first Android Application using Kotlin
  • Learn the concepts of Lambdas and High Order Functions
  • Learn about the Kotlin Standard Library
  • Learn how to use Collection Classes in Kotlin
  • Learn Object Oriented Programming Concepts
  • Understand the use of Generics in the Kotlin Programming Language

Mode of delivery

Every participant will be provided with course notes and are required to bring in their own laptops for hands-on exercise and practice session.

Introduction

  • Installing the JDK
  • Installing the Intellij IDEA
  • Basic Syntax
  • Language Features
  • Functional Programming
  • Object Oriented Programming

Basics

  • Static Typing and Type Inference
  • Mutable and Immutable variables
  • Comments
  • Packages
  • Basic Data Types
  • String and String Templates
  • Any Type
  • Unit Type
  • Nothing Type
  • Explicit Casts and Smart Casts
  • Operators
  • Nullable Types
  • Safe Call Operator
  • Elvis Operator
  • Not Null Assertions

Control Flow

  • If statements and Expressions
  • When Statement and Expressions
  • While and Do-While loops
  • Ranges and Progressions
  • For Loop
  • Returns and Jumps

Functions

  • Top Level Functions
  • Member and Local Functions
  • Named Parameters / Arguments
  • Default Parameters / Arguments
  • Infix Calls
  • Variable Arguments and Spread Operator
  • Overloaded Functions
  • Extension Functions

Standard Library Functions

  • Apply, let and with
  • Run, lazy and use
  • Repeat (require, assert and check)

Operator Overloading

Overview

  • Compound Assignment Operators and Unary Operators
  • Comparison Operators

Lambda Expressions

Overview

  • Higher Order Functions
  • Variable Scope
  • Use in the Java APIs
  • Returning Functions from Functions
  • Inline Functions

Object Oriented Concepts

Overview

  • Classes
  • Encapsulation
  • Constructors
  • Abstraction
  • Interfaces
  • Inheritance
  • Polymorphism

OOP in Kotlin

  • Classes and Constructors
  • Properties and Fields
  • Visibility Modifiers
  • Inner and Nested Classes
  • Interfaces
  • Inheritance
  • Data Classes and Delegation
  • Generics
  • Enum Classes
  • Arrays
  • Sealed Classes
  • Singletons
  • Companion Objects
  • Anonymous Objects
  • Delegation
  • Delegated Properties

Exceptions

Overview

  • Kotlin Exceptions

Collections

  • Overivew
  • Kotlin Collections Classes
  • Lists
  • Sets
  • Maps
  • Traversing a Map
  • Manipulating Collections
  • Quantifiers

Generics

Overview

  • Kotlin Generics
  • Generic Constraints
  • Type Variance
  • Type Projections

Annotations

Overview

  • Standard Annotations
  • Common Java Annotations
  • Creating Annotations

Interop

  • Calling Java from Kotlin
  • Calling Kotlin from Java

Kotlin on Android

  • Installing Android Studio IDE
  • Creating an Android Studio Project
  • Android SDK Manager / Tools
  • The Android Emulator
  • Compiling and Running first Android Application

Programme scope, delivery arrangements and suitability are confirmed during enquiry.