Kotlin for Java Developers 

Introduction to the course

What is Kotlin?

History of Kotlin

Developing Kotlin

From Java to Kotlin

Introducing Kotlin to an existing project

"Hello, world" example

Variables

Functions

Named & default arguments

Conditionals: if & when

Loops

'in' checks & ranges

Exceptions

Extension Functions

Examples from the Standard Library

Calling Extensions

Importance of extensions

Solution: Mastermind

Solution: Checking identifier

Solution: Sum as an extension function

Nullable types

Nullable types under the hood

Safe casts

Importance of nullability

Lambdas

Common Operations on collections

Operations Quiz -1

Operations Quiz - II

Function Types

Member References

return from Lambda

Is Kotlin a functional language?

Solution: Nice String

Solution: Taxi Park, tasks 1

Solution: Taxi Park, tasks 4 &

Solution: Taxi Park, task

Solution: Checking whether string is null or empty

Solution: Safe casts

Solution: Interchangeable predicates

Properties

More about Properties

Lazy or late initialization

OOP in Kotlin

Constructors, Inheritance syntax

Class modifiers - I

Class modifiers - II

Objects, object expressions & companion objects

Constants

Generics

OOP design choices

Operator Overloading

Conventions

(Not)using operator overloading

Solution: Rationals

Solution: Unstable va

Solution: Using lateinit property

Solution: NPE during initialization

Solution: Equality

Library functions looking like built-in constructs

The power of inline

Inline or not inline?..

Collections vs Sequences

More about Sequences

Creating Sequences

Library Functions

Lambda with receiver

More useful library functions

Basic types

Kotlin type hierarchy

Nullable Types

Collection types

Solution: Inlining of the 'filter' function

Solution: Fibonacci sequence

Solution: Working with auxiliary functions

Solution: Member extensions

Conclusion