Kotlin vs Scala: Which JVM Language To Choose For Your Project?
Java is a revolutionary programming language worldwide. It has catalyzed multiple other languages over the years, and these languages are considered Java’s alternative for effective application development. The two famous names in the programming world under the JVM language category are Kotlin and Scala. Scala and Kotlin have been a developer’s delight with their bouquet of salient features.
There has been a constant comparison between Kotlin and Scala, though both showcase their innovative ways of enhancing Java. Kotlin focuses on a better version of Java by reducing the boilerplate code and adding new features like null-safe design. In comparison, Scala offers a flexible syntax motivated by functional programming ideas.
Before we compare them, we should look at their overview and salient features.
What is Kotlin?
Kotlin is a modern programming language that makes developers happier. It is a concise and safe programming language, easy to pick up, so you can create powerful applications immediately.
Kotlin is a well-known, open-source, JVM programming language developed in 2010. It is backed by two well-known entities: JetBrains and Google. It possesses object-oriented features like Smart Casts, Extension Functions, etc. It is an ideal choice for Android users since Android Studio lets app development be done in Java and Kotlin. If you are familiar with Java, learning Kotlin is easier.
Being a functional language, it offers good support for high-order functions. Kotlin is a modern language used to build server-side apps, Android apps, and much more. It majorly targets the Java Virtual Machine and compiles it into JavaScript. It is affected by other languages like Groovy, Java, C#, etc. It relies on the current Java Class library for its syntax. It offers code interoperability and code safety to the entire developer community.
Features Of Kotlin
- Object-oriented and functional programming
- Clean and compact syntax
- Operator overloading
- Compiles to JVM bytecode
- Extension functions
- Reduction of a crash at runtime
- Supports higher-order functions
- Neat, short, and sleek expression
Companies Using Kotlin
Uber, Pinterest, Coursera, Evernote, Atlassian, Google, Foursquare, Corda, Trello, Gradle, Amazon, Pivotal, etc.
What is Scala?
The Scala Programming Language combines object-oriented and functional programming in one concise, high-level language. Scala’s JVM and JavaScript runtimes let you build high-performance systems with easy access to huge ecosystems of libraries.
Scala is a popular JVM language meant for large-scale programs for functional programming. It is interoperable with Java and possesses features like code conciseness, higher-order functions, etc. It supports object-oriented programming, type systems, collections, custom control structures, traits, functions, and closures. Pattern matching is a highlight in Scala, through which you can use the match statement to correspond any data or lists with your types.
It has an extensible and flexible code syntax. Scala mainly intends to showcase common programming patterns in a sleek, short, and effective manner. Since the object-oriented and functional features are integrated, developers can easily explore Scala and its features. It automatically infers type information. It facilitates turning variables mutable or immutable while declaring them.
Scala Features
- Immutability and concurrency control
- High order functions
- Exact syntax with no boilerplate code
- Supports object-oriented and functional programming
- Faster error and bug detection
- Statically typed and extensible
- Supports pattern matching and macros
- Facilitates overloading operators
Companies Using Scala
Netflix, LinkedIn, Apple, Twitter, LinkedIn, Uber, Foursquare, Tumblr, Sony, The Guardian, precog, Airbnb, etc.
Good Read: Scala vs Java: Features, Applications, And Difference
Kotlin vs Scala: The Similarities
- Popular and liked by developers
- Support for Null Safety management
- Java Virtual Machine (JVM) languages
- Operator overloading
- Functional programming
Kotlin vs. Scala: An Evaluation Between Two Popular JVM Languages
Parameters |
Kotlin |
Scala |
Inception |
2011 |
2014 |
Overview |
Object-oriented language with functions as first-class citizens |
Multi-paradigm programming language |
Popular Frameworks/Libraries |
Spek, Klaxon, Kotlin NoSQL, Kanary, Kotlin-Core etc. |
Epic, Breeze, Saddle, Akka, Summing Bird, Smile, etc. |
Android Compatibility |
Kotlin is ideally used for Android app development |
Scala is not widely used for Android app development |
Compilation Speed |
Faster compilation speed compared to Scala |
Slower compilation speed compared to Kotlin |
Pattern Matching |
Kotlin does not entirely support pattern-matching |
Scala offers complete support for pattern-matching |
Length of Code |
Usually short, to the point |
Usually larger |
Community Support |
Small-sized community support |
Large community support |
Ease of Learning |
Easy to understand with basic syntax and simple coding style |
Powerful and flexible syntax, a little tricky for novices |
Big Data and Data Science |
Not ideal for Big Data and Data Science applications |
Fit for Big Data and Data Science with features like pattern matching |
Job Opportunities |
Lesser Kotlin jobs in the market |
More Scala jobs in the market |
Average Salary of Developers |
The average Kotlin developer salary in the USA is $130,000 annually or $66.67 per hour. |
The average Scala developer salary in the USA is $135,900 annually or $69.69 per hour. |
Ease of Coding |
Easy to code and debug with simple syntax |
It will take time to understand the coding syntax |
Inline Functionality |
The compiler automatically takes functions with ‘inline’ keyword as inline |
The developer must ask the compiler to inline a method through @inline |
Null Point Exceptions |
Practical and easy null safety management |
Adds complexity to code while doing null safety management |
Operator Overloading |
Kotlin overloads basic operators, making it easy to understand but less flexible. |
Scala is quickly approaching operator overloading, making it better for human-readable code. |
Interoperability with Java |
It is 100% interoperable with Java. One can call Kotlin code from Java and vice versa. |
One can access Java classes but cannot call Scala classes in a Java environment. |
Use Cases |
Android development, web development, and server-side development |
Big Data & Machine learning solutions, projects with OOPS, and functional programming |
Codes |
Kotlin Codes are efficient and brief |
Scala codes are more significant and widespread |
Documentation |
API documentation is extensive but not very well arranged |
API documentation is simple and well-arranged |
The Bottom line
The debate between Kotlin and Scala seems like a long one. Kotlin is a comfortable option in an Android environment; however, beyond that, there could be other options. For options like Eclipse, Scala could prove better. Scala IDE is a tad more developed than the Kotlin plug-in, yet it is highly popular among Java developers. Being modern, developers look at Kotlin as a better option. Scala is for implementing newer ideas, and Kotlin is for getting the best results.
Be it Scala or Kotlin, both are popular and effective and are a developer’s choice.
SPEC INDIA, as your single stop IT partner has been successfully implementing a bouquet of diverse solutions and services all over the globe, proving its mettle as an ISO 9001:2015 certified IT solutions organization. With efficient project management practices, international standards to comply, flexible engagement models and superior infrastructure, SPEC INDIA is a customer’s delight. Our skilled technical resources are apt at putting thoughts in a perspective by offering value-added reads for all.
Delivering Digital Outcomes To Accelerate Growth
Let’s Talk