60-Minute Kotlin Quick Start for Java Developers from Udemy

Kotlin in one hour?.

Well, yes.

Why an hour? Because that's all you need as an experienced developer.

We'll see the basics constructs of the language - variables, conditionals, loops, strings and arrays. Being an experienced developer you probably don't need an explanation of "what a loop is" but you want to see how loop is done in Kotlin. This is my attitude through all this course - I won't waste your time in telling you things you already know. I'll try to show you new things and give you the direction to go on.

Developers: want a fast introduction to Kotlin? If you're familiar with Java, I can help you get up to speed in just a couple of of hours.

Kotlin is a fascinating new language that's attracted lots of attention, including from Google. In this short course you'll get to know Kotlin and its essentials. You'll be able to start writing code in no time.

If you are an experienced developer and heard the buzz about Kotlin - this course is for you.

If you are a Java developer and want to dive into Kotlin, I'll help you translate your Java knowledge into Kotlin expertise in no time.

If you are a Java developer and heard all those talking about Kotlin, but you don't know where to start - start here. Your java knowledge will be translated quickly into kotlin.

In this course I'll show you the essentials of this young and amazing language. We'll work with the IntelliJ IDE but if you just want to taste the language without any downloads or installations - that's fine, I'll introduce the Kotlin Playground which is a great tool for writing and evaluating Kotlin on line without any configurations.

We'll see how Kotlin's functions work, and how functional programming is done in Kotlin.

We'll see how OOP is done in Kotlin and what are the main improvements over java.

Finally, I'll give you some suggestions to what else can be done and which topics you might want to get interested in the Kotlin's ecosystem.

Hope you choose to take this course and get to know Kotlin, a fascinating new language.

Read what other students thought about this course in the reviews section.

"As a senior Android developer, i've searched for a *brief and practical* Kotlin course that include all the information to get started with the new language. this course does exactly it - took me all the way from IDE setup to the little but crucial differences from Java. All in all - great value for money"

What's inside

Learning objectives

Download and use the intellij ide
Get to know kotlin's playground
Write kotlin programs
Use kotlin for any desktop application

Get to know kotlin's syntax
Learn kotlin lambda expressions and functional programming
Learn how oop is done in kotlin.
How to convert java code into kotlin

Download and use the intellij ide
Get to know kotlin's playground
Write kotlin programs
Use kotlin for any desktop application
Get to know kotlin's syntax
Learn kotlin lambda expressions and functional programming
Learn how oop is done in kotlin.
How to convert java code into kotlin

Syllabus

Introduction

A short overview of kotlin's history and main characteristics.

In this lecture we'll see how to download the intellij ide, and how to use the kotlin's playground (See resources).

A Short overview of this section

In this lecture we'll learn how to write our first program in Kotlin, using the standard output.

In this lecture we'll learn about Kotlin's variables declarations and arithmetics.

In this video we'll see the various ways of representing strings in Kotlin.

In this lecture we'll see how kotlin perform conditionals.

In this lecture we'll see the "when" statement - the replacement of the traditional switch-case.

In this video we'll see the kotlin's loops and range object.

In this lecture we'll see how kotlin handles arrays.

In this lecture I'll show how to easily convert java code into kotlin.

In this video we'll see how functions are defined in kotlin and we'll talk about default and named arguments.

In this lecture we'll talk about lambda expressions and function types - the way to do functional programming in kotlin.

In this lecture we'll see the fundamentals of OOP in Kotlin - classes and objects.

In this lecture we'll see one of the most known features of Kotlin - null safety.

In this lecture we'll see how Kotlin defines special classes to reduce the amount of boilerplate code.

Suggestions for those of you who are curious about what else can be done.

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Designed for Java developers, it leverages existing knowledge to quickly grasp Kotlin essentials, which can help learners transition to a new language efficiently

Covers object-oriented programming (OOP) in Kotlin, highlighting improvements over Java, which may help learners modernize their coding practices

Explores Kotlin's functions and functional programming paradigms, which are increasingly relevant in modern software development, and may help learners expand their skill set

Uses IntelliJ IDE, a popular tool among professional developers, which may help learners gain familiarity with industry-standard software

Introduces Kotlin's Playground, which allows for online coding and evaluation without installations, but may not be suitable for complex projects

Reviews summary

Kotlin essentials for java developers

According to learners, this course offers a rapid and efficient introduction to Kotlin specifically tailored for those with a Java background. Students appreciate that the course gets straight to the point, covering core Kotlin syntax, functions, OOP concepts, and key differences from Java without dwelling on basics assumed to be known by experienced developers. Reviewers frequently highlight its effectiveness as a quick start and a useful tool for translating Java knowledge into Kotlin. While the "60-Minute" claim might be ambitious for some, the course is widely praised for its conciseness and ability to quickly enable writing Kotlin code.

Moves quickly, may require rewatching.

"It is quite fast, but if you have previous Java experience, you will find it useful."

"It moves very fast (but that is the point)."

Provides a start, but not comprehensive.

"This course is excellent quick start, however the full Kotlin is far more larger."

"It's a good starting point but not comprehensive..."

Covers essential Kotlin basics effectively.

"...took me all the way from IDE setup to the little but crucial differences from Java."

"It introduces the syntax and gives pointers on the different features..."

"Helped me grasp kotlin basics..."

Efficient delivery, no wasted time.

"The instructor is clear and to the point."

"Very concise and useful overview of Kotlin basics."

"Perfect for busy developers who just need to get the gist of a language quickly."

Effectively highlights differences from Java.

"...took me all the way from IDE setup to the little but crucial differences from Java."

"It introduces the syntax and gives pointers on the different features, comparing them to Java constructs."

"instructor gives concrete Java examples on how different features compare to kotlin counterparts."

Ideal rapid intro for experienced Java devs.

"As a senior Android developer, i've searched for a *brief and practical* Kotlin course that include all the information to get started with the new language. this course does exactly it..."

"This course does exactly what it says on the tin: a quick start for a java dev into kotlin. It introduces the syntax and gives pointers on the different features..."

"Excellent quick start course for java developers transitioning to Kotlin. The instructor is clear and to the point."

"This course is awesome! It helps me grasp kotlin basics and prepare to develop Android apps using kotlin instead of Java."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in 60-Minute Kotlin Quick Start for Java Developers with these activities:

Review Java Fundamentals

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Reviewing Java fundamentals will help you understand the Kotlin syntax and concepts more easily, as the course is designed for Java developers.

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Review basic Java syntax and data types.
Practice writing simple Java programs.
Familiarize yourself with Java's OOP concepts.

Read 'Kotlin in Action'

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Reading 'Kotlin in Action' will provide a deeper understanding of the language and its features, complementing the quick start provided by the course.

View Kotlin in Action, Second Edition on Amazon

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Read the first few chapters covering basic syntax.
Experiment with the code examples provided in the book.
Compare the book's explanations with the course content.

Convert Java Code to Kotlin

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Practicing converting Java code to Kotlin will solidify your understanding of the syntax differences and help you become more proficient in Kotlin.

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Find Java code snippets online or from your own projects.
Use IntelliJ's built-in Java-to-Kotlin converter as a starting point.
Manually refine the converted code to improve readability and idiomatic Kotlin style.
Compare the original Java code with the converted Kotlin code.

Four other activities

Expand to see all activities and additional details

Show all seven activities

Read 'Effective Kotlin'

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Reading 'Effective Kotlin' will help you write cleaner, more efficient, and more idiomatic Kotlin code.

View Kotlin Coroutines on Amazon

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Read a chapter each week.
Apply the principles to your own code.
Refactor existing code to follow the book's recommendations.

Create a Simple Kotlin Application

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Building a small application will allow you to apply your knowledge of Kotlin and gain practical experience with the language.

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Choose a simple project, such as a calculator or a to-do list.
Design the application's user interface and functionality.
Implement the application using Kotlin, applying the concepts learned in the course.
Test the application thoroughly and fix any bugs.

Follow Advanced Kotlin Tutorials

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Following advanced tutorials will expose you to more complex Kotlin concepts and techniques, expanding your knowledge beyond the basics covered in the course.

Show steps

Search for tutorials on topics such as coroutines, functional programming, or multiplatform development.
Carefully follow the instructions and code examples provided in the tutorials.
Experiment with the code and try to adapt it to your own projects.

Contribute to a Kotlin Open Source Project

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Contributing to open source will provide valuable experience working with real-world Kotlin code and collaborating with other developers.

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Find a Kotlin open source project that interests you.
Read the project's documentation and contribution guidelines.
Identify a bug or feature that you can contribute to.
Submit a pull request with your changes.

Career center

Learners who complete 60-Minute Kotlin Quick Start for Java Developers will develop knowledge and skills that may be useful to these careers:

Mobile Application Developer

Mobile application development often requires skills in Kotlin, especially when developing for the Android platform, and thus a course on Kotlin is directly related to this role. This course provides a fast introduction to Kotlin, covering essential topics like program writing, syntax, and object oriented programming, and functional programming. The quick pace of the course is well-suited for mobile application developers who need to stay up to date with the latest languages. This course emphasizes converting Java code into Kotlin, which can accelerate progress for developers that are already familiar with the Java ecosystem. This way, practical skills are quickly gained. It is an ideal way to learn Kotlin for mobile development.

See salaries and explore the career path for Mobile Application Developer

Android Developer

A significant portion of Android development is done with Kotlin, making a strong background in this language essential for an Android Developer. This course helps you write Kotlin programs, use Kotlin syntax, and understand how to translate Java code into Kotlin. Given that Android development is shifting away from Java to Kotlin, this course provides a way for developers, especially those with experience in Java, to transition to the most current Android development practices. You will gain practical knowledge of language fundamentals and object oriented programming in Kotlin. All of these are essential when building Android applications.

See salaries and explore the career path for Android Developer

Software Engineer

Software engineers might need to familiarize themselves with Kotlin for various projects; thus, this course on Kotlin can serve as an effective primer. This course demonstrates how to write Kotlin programs, use the IntelliJ IDE, and learn Kotlin syntax including object oriented and functional programming. The course also teaches Java developers how to translate their knowledge into Kotlin expertise in a short amount of time. The course’s concise structure makes it ideal for software engineers who need to quickly learn the essentials of Kotlin. Kotlin's increasing popularity makes it a valuable language in many engineering roles.

See salaries and explore the career path for Software Engineer

Application Developer

Application developers may find that a course on Kotlin will be a useful skill to add to their toolkit, as Kotlin is a versatile language in application development. This course teaches the fundamentals of Kotlin, from setting up the IntelliJ IDE to understanding object oriented and functional programming. The course’s practical exercises in writing Kotlin programs and converting Java code to Kotlin are helpful to an application developer. The course’s structure targets experienced developers, making it suitable for application developers who want to learn a new language quickly while building on what they already know.

See salaries and explore the career path for Application Developer

Full-Stack Developer

Full stack developers often benefit from knowing multiple languages, and Kotlin can be a useful addition to their toolkit. This course on Kotlin enables full stack developers to become more versatile in their projects. It introduces the fundamentals of the language, covering topics such as variables, conditionals, loops, as well as object-oriented and functional programming. The course’s structure, designed for experienced developers, makes it efficient for learning the language quickly. Given that Kotlin can be used on both backend and frontend projects, adding this skill can become relevant for a full stack developer.

See salaries and explore the career path for Full-Stack Developer

Backend Developer

Backend developers who want to diversify their skillset may be interested in using Kotlin, thus making this course relevant. Kotlin is a language that can be used for backend development, and this course provides a quick start to using the language. You will explore the usage of various constructs, including variable declaration, conditional statements, and loops, along with object oriented programming and functional paradigms. This course provides a concise introduction to the essentials of Kotlin, allowing a backend developer to quickly incorporate it into their repertoire, and also use their Java experience to quickly transition to this language. Given the course’s focus on fast learning, it can help keep developers up to date.

See salaries and explore the career path for Backend Developer

Game Developer

Game developers who use the LibGDX framework frequently use Kotlin, and so a course on Kotlin is relevant to the field. This course provides a fast-paced introduction to Kotlin, covering key language features such as writing programs, language constructs, object oriented, and functional programming. Game development can benefit from the efficiency and modern features of Kotlin, and this course provides a practical approach to learn the language. The fact that Java knowledge is translated to Kotlin can help game developers with a Java background to more quickly transition to Kotlin. The course can help game developers expand their skillset and take advantage of Kotlin's features.

See salaries and explore the career path for Game Developer

Web Developer

Web developers may find that adding Kotlin skills can be beneficial, as Kotlin can be used in web development; thus, this course may be useful. This course focuses on the fundamentals of Kotlin, including syntax, program writing, and functional programming, which can be readily applied in web development contexts. It introduces variables, conditionals and loops, and how to use them in Kotlin. Learning how to translate Java knowledge to Kotlin, as demonstrated in the course, can make it easier for web developers familiar with Java to pick up Kotlin. This course can serve as a good primer for web developers who want to expand their technology stack.

See salaries and explore the career path for Web Developer

Software Architect

A software architect needs a broad understanding of various programming languages, and given Kotlin's increasing popularity, a course like this may be useful. This course provides software architects with a fast-paced introduction to Kotlin, teaching key aspects of the language such as syntax and how to write programs. Understanding the essentials of Kotlin, and knowing how to translate Java knowledge into Kotlin, can provide the architect with valuable perspectives. Software architects need to stay informed about up and coming technologies, and a course like this can help in that regard, so this course provides a potential way to learn these skills.

See salaries and explore the career path for Software Architect

Data Engineer

Data engineers might need to integrate Kotlin into data pipelines; therefore, this course might be helpful. This course teaches the fundamentals of Kotlin, including writing programs, using the IntelliJ IDE, and understanding object oriented and functional programming. Knowing how to translate Java code into Kotlin, taught by the course, is particularly relevant for data engineers familiar with Java. The course's quick start approach is well suited for data engineers who need to incorporate Kotlin into their projects without a steep learning curve. The course provides essential skills.

See salaries and explore the career path for Data Engineer

DevOps Engineer

DevOps engineers may find that using Kotlin can be valuable for scripting and automation, so learning this language may be helpful. This course provides a focused introduction to Kotlin, teaching the basics of the language, including variables, loops, conditionals, object oriented and functional programming. Knowing how to translate from Java to Kotlin, as shown in this course, can accelerate the integration of Kotlin for DevOps engineers who have this background. The course is designed for experienced programmers, and will introduce them to the key features of Kotlin without a lot of time consumption. Thus, learning this language can allow them to more effectively automate and script.

See salaries and explore the career path for DevOps Engineer

Embedded Systems Engineer

Embedded systems engineers can use Kotlin in certain contexts, such as on Android based systems, so a course on Kotlin can be useful. This course teaches embedded systems engineers the basics of Kotlin. It also will cover how to translate between Java to Kotlin. This is a valuable skill to have for engineers who want to take advantage of Kotlin's features on embedded systems, and who have worked with Java before. The course’s practical and fast-paced introduction to Kotlin can help prepare engineers for the demands of working with embedded systems.

See salaries and explore the career path for Embedded Systems Engineer

Research Scientist

Research scientists in computation fields may find that a course like this is helpful. This course gives a fast introduction to using Kotlin for computation. It teaches a range of programming fundamentals including syntax, use of variables, conditionals, and loops, and how to do functional and object oriented programming. It is particularly helpful for an experienced research scientist familiar with Java. The course is designed to teach the essentials of the language without wasting time. A research scientist might find these skills useful when running simulations and building models.

See salaries and explore the career path for Research Scientist

Teaching Professional

Teaching professionals in the field of computer science may find that this course is helpful, as Kotlin is an increasingly popular language that they may want to teach. This course on Kotlin covers the basics of the language, from variables, loops, and conditionals, to object oriented and functional programming, and the translation between Kotlin and Java. The course provides a structured introduction to the language focusing on quick and practical learning. By taking this course, the teaching professional will have a strong foundation to potentially teach the language to other students. The course teaches the core fundamentals of the language.

See salaries and explore the career path for Teaching Professional

Data Scientist

Data scientists could potentially use Kotlin for specific projects, especially when working with Android, and therefore this course may be of use. This course teaches fundamentals of the Kotlin language including variables, loops, and conditionals. The course also teaches object oriented and functional programming. The course uses a translation from Java to Kotlin, which may be particularly useful for a data scientist with this background. This course provides a quick path to learning this language, so a data scientist can integrate this skill into their workflow. This course covers the essentials of the language.

See salaries and explore the career path for Data Scientist

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in 60-Minute Kotlin Quick Start for Java Developers.

Kotlin in Action, Second Edition

Save

Provides a comprehensive guide to Kotlin, covering everything from basic syntax to advanced features. It's a great resource for Java developers transitioning to Kotlin, offering detailed explanations and practical examples. While the course provides a quick start, this book offers more in-depth knowledge and serves as a valuable reference. It is commonly used as a textbook for Kotlin courses.

Kotlin in Action, Second Edition

Paperback

$$$

Kotlin Coroutines

Save

Focuses on best practices and idiomatic Kotlin code. It's a great resource for improving the quality and maintainability of your Kotlin code. While 'Kotlin in Action' provides a comprehensive overview, 'Effective Kotlin' helps you write better Kotlin code. It is useful for those who want to write idiomatic and performant Kotlin code.

60-Minute Kotlin Quick Start for Java Developers

What's inside

Learning objectives

Syllabus

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Reviews summary

Kotlin essentials for java developers

Activities

Career center

Reading list

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