Kotlin vs Java: Why You Should Choose Kotlin Over Java

Kotlin is an open-source, general-purpose statically typed programming language used for different platforms such as for Android, Java Virtual Machine (JVM), browser. Kotlin is preferred over Java since it is an extension of the latter wherein the developer has to write far less code to execute the same action. It involves various functional features such as “Interoperability” with Java, a null safety, a native conversion and provides a much more concise code. These advanced features of this language ensure a more seamless user experience and coding practices.

While Kotlin is similar to Java, it is also a compiled language where you have to compile the code before you can run it. The source code of Kotlin is gathered in a file with the extension .kt. In the debate of Kotlin vs Java, developers use Kotlin over Java because it has minimal risk with codes and has more advanced features. With Kotlin, a developer has to write less code which improves the quality of the project.

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Kotlin vs Java – Difference between Java and Kotlin

Features	Java	Kotlin
Object-oriented programming	Not pure OOP	Fully OOP
Extension Functions	No	Yes
Inline Functions	No	Yes
NullPointer Exceptions	Yes	No
Lambda Expression	No	Yes
Invariant Array	No	Yes
Non-private Fields	Yes	No
Singletons Objects	Yes	Yes
Static Members	Yes	No

Kotlin: Top Features

The Kotlin language is

• Developer friendly
• Interoperability
• Fewer buggy codes
• Android interactivity
• UI/UX interface
• No Semicolon Usage
• Data Binding Library
• Free from NullPointer Exceptions
• Open-source programming language (Automatic Conversion)

Advantages of Becoming a Kotlin Developer

The demand for Kotlin developers is very high. Almost every company has recognized that now the clock is moving in favor of the mobile era, and these companies want to thrive with every possible opportunity. Thus the number of jobs, especially for Android app development, IoT space, is fast growing.

The average salary ranges between ₹8 – 10 LPA depending on experience, job skills, and organization.

Skills Required

• Understanding of OOPs concepts, invariant Array, design patterns, extension functions, design patterns, etc.
• Knowledge of android features such as APIs, NDK, Android studio, Flutter.
• Basic understanding of web services, XML files, JSON and other tools.
• Knowledge of multithreading, automated testing, Navigation components, Data binding library, Cloud functions.
• Proficient in data structure and algorithms.

Popular Kotlin Courses 

Here, is the list of best learning and certification courses:

• Kotlin for Java Developers by Udemy
• Switch to Kotlin from Java for Android Development on Pluralsight
• The Complete Android 10 & Kotlin Development Masterclass by Udemy
• Android Development with Kotlin Fundamentals by PluralSight
• Kotlin for Java Developers on Coursera
• Android Apps with Kotlin: Build Your First App by PluralSight

What to Include in a Kotlin Developer Resume?

For getting good opportunities you should have a thorough mobile app development background. Ideally, you should include the links to the applications you have created on Google play. Understanding and showcasing great UI/UX best practices will help you get recognized by top product companies. 

Technical Skills:

• Proficiency in Kotlin and other programming languages (Java, Python, etc.)
• Experience with Android development.
• Knowledge of software development life cycle (SDLC).
• Familiarity with RESTful APIs and web services.
• Experience with popular frameworks and libraries (Ktor, Koin, etc.)
• Understanding of object-oriented programming (OOP) principles.
• Proficiency in using Integrated Development Environments (IDEs) like IntelliJ IDEA.
• Version control systems experience (Git, SVN).

Soft Skills:

• Problem-solving abilities.
• Excellent communication skills.
• Team collaboration and leadership skills.
• Attention to detail and analytical thinking.

Professional Experience:

• Detailed description of past roles in Kotlin development.
• Highlight significant projects, responsibilities, and achievements.
• Mention the impact of your contribution on projects (efficiency, profitability, user experience, etc.).