Here in this blog, CodeAvail experts will explain to you about Scala vs Java in detail.
Scala vs Java
Scala and Java names look common to so many people, what separates them?. Both Java and Scala have their own features. Java is a general-purpose computer programming language that is object-oriented, class-based, concurrent, etc. Java applications select bytecode that can run on each Java virtual machine (JVM) despite computer architecture.
Scala is a multi-paradigm, high-level, general-purpose programming language. It is a pure object-oriented programming language. For example, that also gives support to the functional programming approach.
Also, there is no idea of primitive data as in Scala everything is an object. It is created to show the general programming models in a type-safe, succinct, and refine way. Likewise, In this blog, we have given a detailed difference between Scala vs Java.
What is Scala?
It is a statically typed programming language that includes object-oriented and functional programming. Also, it essentially targets the Java Virtual Machine platform but it applies to write various platforms software. However, it incorporates native platforms using Javascript and Scala-Native runtimes through Scala.
Features of Scala
Here are the essential Scala features:
- Scala is statically typed
- Scala is object-oriented. But also it is a functional language.
- Enables you to execute Java code
- It is a short, strong language. And can immediately grow according to the user’s demand.
What is Java?
Java is a computer programming language utilized for general purposes and is object-oriented, concurrent, and class-based. By James Gosling it was developed in 1995 at Sun Microsystems, the organization later received by Oracle in 2009. The language is made so that developers can run it on all platforms that support Java without requiring to be recompiled.
Some features of Java
Some of the essential Java features are:
- Java is highly Robust and Very Secure
- It describes an instance of a class like encapsulation, abstraction inheritance, polymorphism.
- In this case, it writes code only once and runs it on almost every computer platform
- It is created for developing object-oriented applications.
- Java is easy to understand. It has no complication in its features like an inheritance, pointer, operator overloading, etc.
- Java is a multithreaded language with automated memory management.
Significant differences Java vs Scala
- The variables of Scala are by default immutable type on the other hand variables of Java are by default mutable type.
- Java is a network-centric, multi-platform, programming language. Whereas Scala is a static type programming language.
- Scala does not include static members. While Java includes static members.
- However, it does not give backward compatibility. But Java does give backward compatibility.
- Scala helps lazy evaluation. On the other hand, Java does not support lazy evaluation.
- The actor model is used in Scala for maintaining modern concurrency. Whereas for concurrency, Java uses the conventional thread-based model.
- Frameworks Scala are Lift and Play. On the other hand, Java frameworks are Grails, Spring, and many more.
- Scala promotes operator overloading. But Java does not support operator overloading.
- Because of the nested code, Scala is less readable whereas Java is more readable.
Scala vs Java comparison table
Scala
Supported frameworks Support frameworks – Lift, Play
Support for Various inheritances Supports various inheritances by using classes but not by abstract classes
Compactness Generally, more concise and compact
Designed for It is created and produced to be both functional and object-oriented language. It supports an extensive type of functional programming features such as Immutability and concurrency.
Interfaces Traits – function like Java 8 interfaces
Concurrency model For supporting modern concurrency it uses the actor model
URL rewriting There is a need for rewriting
Static members No static members
The static keyword does not include the static keyword.
Readability Because of its nested code, Scala is less readable.
Operator overloading Also supports operator overloading
Bug-free codes No certainty about the bug-free codes
Java
Supported frameworks Support Grails, Spring, much more
Support for Various inheritances Accordingly, Does not support various inheritances by using classes, but by interfaces
Compactness Comparatively bigger parts of code
Lazy evaluation support Thus, it does not support lazy evaluation
Designed for Basically produced as an object-oriented language and started helping features of functional programming in current days. For example, it is not as effective as a functional programming language.
Interfaces Java 8 interfaces try to connect the gap between interfaces and objects
Concurrency model For concurrency uses the conventional thread-based model.
URL rewriting Accordingly, Rewriting is not required
Static members Generally, Includes static members
The static keyword Java includes the static keyword.
Readability, However, Java is more readable.
Operator overloading Do not support operator overloading
Bug-free codes Likewise, Complete insurance of lesser defects
Conclusion
In this case, Scala is a pure object-oriented programming language. By the way, that also gives support to the functional programming approach. There is no idea of primitive data as in Scala everything is an object. Therefore, it is created to show the general programming models in a type-safe, succinct, and refined way. However, Java allows the developers to run identical code on different platforms.
