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
What is Scala?
Scala is a statically composed programming language which consolidates useful and object-arranged programming. It fundamentally focuses on the JVM (Java Virtual Machine) stage however can likewise be utilized to compose programming for different stages. It incorporates local stages utilizing Scala-Native and JavaScript runtimes through Scala.
KEY DIFFERENCE
- 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.
Features of Java
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
Features of Scala
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
Java vs. Scala
Here are the main difference between Java and Scala.
| Parameter | Scala | Java |
|---|---|---|
| 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. |
Advantages of Java
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
Advantage of using Scala
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.
Disadvantages of Java
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().
Disadvantages of Scala
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
