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Kotlin Java for Android App Development | Kotlin Android (Udemy.com)

Android App Development with Kotlin, Java and Android studio, improve your android development skills in Kotlin android

Created by: Oak Academy

Last updated September 2026

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What you will learn

  • Kotlin is popular for both Android developers and Java developers.
  • Whether you want to learn Kotlin in order to build your next Android app, or simply need an introduction to language.
  • Kotlin is a statically-typed, general purpose programming language used to develop for the Java Virtual Machine and Android devices
  • Kotlin is an amalgamation of the object-oriented and functional programming paradigms and can also be compiled to JavaScript source code.
  • Due to its open-source nature, working with the Android platform necessitates constantly learning about the Android platform.
  • The Android platform is increasingly popular with developers, and a dominant force in the global smartphone market.
  • Android development is a software creation process that focuses on applications, better known as apps, that are compatible with devices running the Android.

How it compares

Against the other 28 rated Udemy courses in Kotlin on CourseDuck:

  • Rating4.5 out of 5higher than 57% of them
  • Reviews147#23 of 29 by number of reviews
  • Length64.4 hourslonger than 96% of them
  • Last updatedSeptember 2026more recently than 89% of them

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Course Description

Hey there,

Welcome to the "Kotlin Java for Android App Development | Kotlin Android" course.
Android App Development with Kotlin, Java and Android studio, improve your android development skills in Kotlin android

Kotlin is popular for both Android developers and Java developers. Whether you want to learn Kotlin in order to build your next Android app, or simply need an introduction to language, OAK Academy has a top-rated course to help you achieve your goals.

Kotlin is a very new and up-to-date programming language. Kotlin android is accepted by Google as the official language for Android development. Therefore, it is a language that everyone who wants to be an android developer should know. In this course, we teach Kotlin programming language from beginner to advanced level, considering the importance of Kotlin.

Kotlin is a statically-typed, general purpose programming language used to develop for the Java Virtual Machine and Android devices. Kotlin is an amalgamation of the object-oriented and functional programming paradigms and can also be compiled to JavaScript source code.

Learn core Java Programming with this core Java course. This java programming course will take you a more experienced level

This Java Programming online course is one of the most awesome OAK Academy courses which teach step by step and follow the methodology in introducing concepts and demos ( learn by doing ) to the students so that they can learn with ease Java and learn the core Java skills needed to apply for Java developer positions.

OAK Academy's top-rated Java instructors specialize in a wide array of Java programming practices. Whether you need a basic introduction to Java and website building using Selenium WebDriver or are continuing your Android app developer education, OAK has you covered.

Learn android, android app development, android development, android studio from scratch and become an android developer

Due to its open-source nature, working with the Android platform necessitates constantly learning about the Android platform. My android development course on  OAK Academy keeps you ahead of this learning curve, with hands-on lectures on Android operating systems and more.

· Do you want to improve your career options by learning android?

· Do you want to learn android app development from Scratch?

· Do you want to learn android development from Scratch?

· Do you want to be an android studio master?

· Do you want to build your first app?

If your answer is “yes” , you are at the right place!

I really like the approach of this course about the Android app. It first teaches you Java which is highly important for designing apps in Android. Next, the instructor focuses on the Android SDK to teach you how to build beautiful applications for smartphones. As the course title indicates, it is the complete guide to learn android application development.
The Android platform is increasingly popular with developers and a dominant force in the global smartphone market. As more businesses develop mobile apps for customer engagement, Android development skills are likely to stay in high demand.

Android development is a software creation process that focuses on applications, better known as apps, that are compatible with devices running the Android operating system (OS). Because Android is an open-source project, developers have easy access to the Android software development kit (SDK). Many use this kit in conjunction with Kotlin, Java, and C++ programming languages to make their apps. The Android SDK tools compile your code along with any data and resource files into an APK, or Android package, which is an archive file that uses an .apk suffix. One APK file contains all Android app contents used by devices to install your app. When the app is complete and ready for release, Android developers can upload their apps to the Google Play Store for users to download for android game development.


Chances are, you’ve heard of Android many times, and Do u want to android developer? You may even have an Android smartphone, app android tablet, watch, or TV. But what is Android? Android is a mobile operating system (OS) that was designed and developed by Google. The Android OS is Linux kernel-based. So, what’s “Linux kernel,” and why is that such an essential detail about Android Development?

If you don't know anything about the Kotlin, Java and Android Development and you want to improve yourself, this course is for you.

In this The complete Android Developer course with Java and Kotlin, you will learn;

· What Kotlin is and how it works,

· Programming Fundamentals with Kotlin,

· Android Studio

· Java Development Kit – JDK

· Variables in android kotlin

· Kotlin Data Types

· Arrays in kotlin for android

· Operators in android app development kotlin

· Control Flow Statements

· Loops in android studio kotlin

· Functions

· Kotlin for java developers

· All Concepts of Object-Oriented Programming such as Class, Object, Constructor, Encapsulation, Inheritance etc.

· What Java is and how it works,

· Programming Fundamentals with Java,

· Eclipse

· Java Development Kit - JDK,

· Java Runtime Environment – JRE,

· Java Virtual Machine - JVM

· All Concepts of Object-Oriented Programming

· How To Use ‘Static’ Keyword and ‘Nested and Inner’ Classes

· Super Classes and Sub Classes

· Strings,

· Wrapper Classes,

· Throw and Throws

· Exceptions,

· Swing

· Layouts and Grid Layout

· Enum Types and more

· Android Environment Setup - Download, install and configure the necessary software

· Creating a New Project

· Android Studio

· Android Components

· Components and Life Cycles

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Instructor Details

Oak Academy

Who is Oak Academy?

Oak Academy is a London-based online technology education company. We publish practical, structured video courses in cybersecurity, IT certification, artificial intelligence, data science, software development, and mobile technologies. More than 470,000+ learners have enrolled in Oak Academy courses on Udemy, leaving over 67,000+ reviews across our catalogue. Our courses are produced in English, Portuguese, and several other languages.

What does Oak Academy teach?

Our catalogue is organized around the skills employers actually hire for:

Cybersecurity and ethical hacking — penetration testing, network and web application security, Nmap, Metasploit, Wireshark, Kali Linux, and hands-on practice environments such as TryHackMe and Hack The Box.

IT certification prep — CompTIA A+, Network+, Security+, and newer tracks including CompTIA DataAI, mapped directly to current exam objectives.

Artificial intelligence and data science — Python, NumPy, Pandas, Matplotlib, machine learning with Scikit-learn, R programming, and end-to-end data projects.

Software and mobile development — Python, Java, JavaScript, Flutter and Dart, Android, iOS, and full-stack web development.

How are Oak Academy courses designed?

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Reviews

4.5

147 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Smart Egbuchulem on 9/23/2024

Amazing simplicity of all Android Development concepts!!

By Ashish Verma on 7/18/2023

I recently enrolled in the Udemy course "Complete Android Development" with high hopes of acquiring a comprehensive understanding of Android app development. While the course had a few positive aspects, overall, it fell short in several crucial areas, leaving me disappointed and unsatisfied with the learning experience. First and foremost, I would like to highlight the positive point of the course—the instructor's helpfulness and responsiveness. Whenever I encountered challenges or had questions, the instructor promptly replied with solutions and explanations. Their expertise in the field and ability to explain programming concepts were valuable aspects that made the learning process somewhat more manageable. However, these positive attributes alone were not enough to compensate for the course's shortcomings. One of the major issues with the course was the incomplete coverage of important libraries. It failed to address essential libraries such as Kotlin Coroutines, Retrofit, Dagger or Koin, Room, Glide or Picasso, Moshi or Gson, and Ktor. These libraries play a vital role in modern Android development, enabling critical functionalities like asynchronous programming, network communication, dependency injection, database management, and image loading. The absence of instruction on these libraries left a significant gap in my knowledge and hindered my ability to build robust and efficient Android applications. Furthermore, the course lacked coverage on important topics that are fundamental to Android development. It did not include comprehensive explanations or practical exercises on crucial aspects such as Canvas, Camera, microphone functionalities, and server interaction. These topics are essential for creating feature-rich and interactive Android applications, and their omission left me feeling ill-equipped in these areas. Additionally, the course overlooked the usage of Firebase for authentication, a widely employed cloud service in the realm of Android development. Another significant drawback was the course's failure to cover the implementation of Google Ads in Android applications. Monetization through ads is a common practice, and understanding how to integrate Google Ads is essential for developers seeking to generate revenue from their applications. The absence of instruction on this topic was a missed opportunity to explore an important aspect of app development and left me without the necessary knowledge to effectively monetize my Android applications. Overall, the "Complete Android Development" course on Udemy had its strengths, particularly the instructor's helpfulness and solid concept explanation. However, the incomplete coverage of important libraries, lack of instruction on critical topics, failure to cover the implementation of Google Ads, and superficial treatment of programming concepts were significant drawbacks. These limitations prevented me from acquiring a comprehensive understanding of Android development, hindering my ability to build sophisticated and high-quality applications. Consequently, I cannot wholeheartedly recommend this course to individuals seeking a thorough and well-rounded learning experience in Android development.

By victor Bassey on 3/13/2023

Very detailed...The best teacher..Am learning everyday

By Şükrü Kamu on 12/26/2022

I am trying to improve my android development skills with this tutorial. But I can go a little slow

By ABDULLAH UÇAR on 12/22/2022

A very good tutorial for learning Kotlin.

By Jack Seely Bones on 12/22/2022

A very good tutorial for learning Kotlin.

By Angelina Foil on 12/22/2022

The course is really great. I am very glad I received it. Thank you.

By Akif ÇAKIR on 12/22/2022

The course is pretty good. I watched the videos in one go and I was never bored. the lessons are very well prepared

By Tony Onyeka on 12/27/2021

The instructor is well detailed with the project presentation

By Bright Attai on 10/12/2024

Showing all 10 reviews on CourseDuck

Read all 147 reviews on Udemy

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Overall Score : 90 / 100