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Kotlin Crash Course for Programmers
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Gain insights into Kotlin’s basics, including variable declarations, data types, conditions, loops, and functions. Discover how to write simple Kotlin scripts and transition to advanced programming.

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Kotlin is quickly joining the ranks of the most popular programming languages. Now that Google supports Kotlin for Android app development as the primary choice over Java, we’ll only see more developers making the switch. So if you’re looking to get started with Android app development, then you’ve come to the right place. This course will be your guide on getting started with Kotlin. We’ll go over all the language basics including variable declarations, data types and the type system to conditions, loops, and functions. After this course, you’ll be able to write simple Kotlin scripts and applications. With this solid understanding of the language basics, you’ll be able to more easily follow more advanced material covering functional and object-oriented programming.

Kotlin is quickly joining the ranks of the most popular programming languages. Now that Google supports Kotlin for Android app d...Show More

WHAT YOU'LL LEARN

Confidence using Kotlin

Strong understanding of Kotlin fundamentals

Ability to write own applications and scripts using Kotlin

Confidence using Kotlin

Content

29 Lessons22 Quizzes

Hello Kotlin!

3 Lessons

Learn how to use Kotlin's features and principles for effective programming.

Brief Introduction

Kotlin Overview: Principles and Goals

Following this Course

Variables and Data Types

4 Lessons

Look at Kotlin's variable mutability, data types, type inference, and nullable types to enhance code safety.

Read-Only vs Mutable Variables

Basic Data Types

Kotlin's Type Inference

Nullable Types

Conditions

3 Lessons

Examine Kotlin's conditional control flow using `if` and `when` for flexible, concise code.

Conditions with `if`

Conditions with `when`

Conditions as Expressions

Collections

4 Lessons

Grasp the fundamentals of Kotlin collections—lists, sets, arrays, and maps for effective data management.

Loops

2 Lessons

Dig into Kotlin's `while` and `for` loops for flexible iteration strategies.

`while` Loops

`for` Loops

Functions

7 Lessons

Focus on understanding Kotlin functions, their syntax, entry points, shorthand, defaults, extensions, infix, and operator functions.

Basic Functions

The main() Function

Shorthand Notation for Simple Functions

Default Values & Named Parameters

Extension Functions

Infix Functions

Operator Functions

Equality Checks

2 Lessons

Build on the nuances of referential and structural equality, and precision in floating-point checks.

Referential vs Structural Equality

Floating Point Equality Checks

Exception Handling

2 Lessons

Sharpen your skills in handling exceptions in Kotlin for robust error management.

Exception Handling in Kotlin

Checked Exceptions vs Unchecked Exceptions

Summary

2 Lessons

Unpack the core of Kotlin fundamentals and explore advanced resources for skill enhancement.

Recap

Next Steps

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Peter Sommerhoff

Developed by MAANG Engineers

Every Educative resource is designed by our team of ex-MAANG software engineers and PhD computer science educators — subject matter experts who’ve shipped production code at scale and taught the theory behind it. The goal is to get you hands-on with the skills you need to stay ahead in today's constantly evolving tech landscape. No videos, no fluff — just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

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"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

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