Java vs Scala: What is the Difference?
What is Java?
Java is a multi-stage, object-situated, network-driven, programming language created by Sun Microsystems. Java is a programming language and a figuring stage for application advancement. It was first delivered by Sun Microsystem in 1995 and later procured by Oracle Corporation
In this tutorial, you will learn:
- What is Java?
- What is Scala?
- Features of Java
- Features of Scala
- Java vs. Scala
- Advantage of using Scala
- Advantages of Java
- Disadvantages of Java
- Disadvantages of Scala
- Scala is a statically composed programming language though Java is a multi-stage, network-driven, programming language.
- Scala utilizes an entertainer model for supporting current simultaneousness though Java utilizes the ordinary string based model for simultaneousness.
- Scala factors are of course unchanging sort while Java factors are naturally impermanent sort.
- Scala upholds sluggish assessment while Java doesn’t uphold lethargic assessment.
- Scala doesn’t contain static individuals while Java contains static individuals.
- Scala underpins administrator over-burdening while Java doesn’t uphold administrator over-burdening.
- Scala doesn’t offer in reverse similarity while Java offers in reverse similarity.
- Scala is less clear in light of settled code though Java is more comprehensible.
- Scala systems are Play, Lift though Java structures are Spring, Grails, and some more.
Here are the important features of Java.
- Compose code once and run it on practically any PC stage
- It is intended for building object-situated applications.
- Extremely Robust and Highly Secure
- It is a multithreaded language with programmed memory the executives
- Encourages disseminated processing as its organization driven
Here are important features of scala:
- Item arranged however Scala is additionally a practical language.
- It is compact, incredible language and can rapidly develop as indicated by the interest of its clients.
- Permits you to execute Java code
- Scala is statically composed
Here are the main difference between Java and Scala.
|Compactness||More compact and concise||Comparatively larger chunks of code|
|Designed for||It is designed and developed to be both object and functional oriented language. It supports a wide variety of functional programming features such as concurrency and Immutability.||Originally developed as an object-oriented language and started supporting functional programming features in recent days. It is not as strong as a functional programming language.|
|Concurrency model||Uses actor model for supporting modern concurrency||It uses the conventional thread-based model for concurrency.|
|Supported frameworks||Supports frameworks – Play, Lift||Supports Spring, Grails, much more|
|Lazy evaluation support||Supports lazy evaluation||Does not support lazy evaluation|
|Static members||No static members||Contains static members|
|Operator overloading||Supports operator overloading||Does not support operator overloading|
|Compilation process||Compilation of source code is comparatively slow||Compilation of source code is faster than Scala|
|Interfaces||Traits – act like Java 8 interfaces||Java 8 interfaces try to bridge the gap between classes and interfaces|
|URL rewriting||Rewriting is needed||Rewriting is not required|
|Bug-free codes||No assurance about the bug-free codes||Complete assurance of lesser defects|
|Support for backward compatibility||Scala does not support backward compatibility||Java supports backward compatibility|
|Support for Multiple inheritances||Supports multiple inheritances using classes but not by abstract classes||Does not support multiple inheritances using classes, but by interfaces|
|Code style||Code is written in a compact form.||Code is written in long-form.|
|Static keyword||Scala does not contain the static keyword.||Java contains the static keyword.|
|Treats||Any method or function present in Scala is they are treated like they are variable.||Java treats functions as an object.|
|Type of variables||Scala variables are by default immutable type.||Java variables are by default mutable type.|
|Object orientation||Scala treats everything as an instance of the class and it is more object-oriented language as compare to Java.||Java does not support operator overloading.|
|Calling method||In Scala, all the operations on entities performed using method calls.||Operators are treated differently and is not done using the call method.|
|Readability||Scala is less readable because of its nested code.||Java is more readable.|
|Compiling process||Compiling the process of source code into byte code is very slow.||Compiling the process of source code into byte code is fast.|
Here, are pros/benefits of using Java-
- Point by point documentation is accessible.
- An enormous pool of talented designers accessible
- Permits you to shape standard projects and reusable code.
- It is a multi-strung climate which permits you to perform numerous undertakings simultaneously in a program.
- Magnificent execution
- Tremendous exhibit of outsider libraries
- Simple to explore libraries
Here are pros/benefits of learning Scala:
- Scala is anything but difficult to learn for object-situated software engineers, (Java designers). It is getting one of the well known dialects lately.
- Scala offers top of the line capacities for clients
- Scala can be executed on JVM, consequently making ready for the interoperability with different dialects.
- It is intended for applications that are simultaneous, conveyed, strong, and message driven. It is quite possibly the most requesting dialects of this decade.
- It is brief, incredible language and can rapidly develop as per the interest of its clients.
- It is object-situated and has a ton of useful programming highlights giving a great deal of adaptability to the engineers to code in a manner they need.
- Scala offers many Duck Types
- It has less standard in the event that you are coming from Java
- The structures Lift and Play written in Scala are in the development bend.
Here, are cons/drawback of using Java-
- JIT compiler makes the program relatively moderate.
- Java has high memory and preparing necessities. Accordingly, equipment cost increments.
- No help for low-level programming develops like pointers.
- You don’t have any power over trash assortment as Java doesn’t give capacities like erase(), free().
Here, are few cons/disadvantages of scala:
- Scala offers restricted local area presence.
- It isn’t the effectively versatile language.
- Offers restricted in reverse similarity