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What is special about Scala?

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Scalable Language, Scala is a general-purpose high-level programming language that combines object-oriented and functional programming in a single concise. There are many arguments and debate about Scala, but the major part of the arguments involves a variety of distinguished or factual shortcomings of Scala as a language. This might feel unpleasant from the outside and arise the question why should I use Scala? What are the benefits of to use Scala?

Why Scala?

It was created with purpose o being better language specifically for aspects those are considered restrictive, very tedious and frustrating for developers. The outcome is much cleaner and well-organized language which finally easy to use and productive.

What makes Scala special?

Scala's complex features promote better coding and offer a performance increase. Functions, macros, and tuples are just a few of the advancements Scala offers. Scala incorporates functional programming and object-oriented programming into a powerful language.

1. A multi-paradigm language

Scala enables you to explore functional and OOP features together that helps to develop imperative, logical, functional and OOP skills. You can use types associated with both data attributes and behavior attributes. Using first class Scala functions you can pass anonymous functions along with values. That is an elegant feature of Scala and the most preferred features by developers to be popular. 

2. It can be used along with Java

Scala is completely different language than Java, but developers does not have to reinvent the wheel. It allows compatibility and interoperability with Java. Scala uses the Java Virtual Machine to run. Developer can directly use code and libraries from Java into Scala class by importing Java package. Java developers can also call Scala code from their Java Code.

3. Built-in best Practice and Patterns

Scala was originally designed to apply modernization of programming language research to achieve mainstream traction like Java. The Scala language itself contains number of best practices and patterns as a built-in feature. For example, val declares top-level immutability. In Java developers must declare overloaded final keyword. Read-only/const in C#. It also enables developers to create immutable classes by using case class. Closures is another feature of Scala’s functional programming paradigm.

4. Expressiveness of language

Scala is fundamentally more expressive than other language. Developers likes writing code in Scala specially when they learn Scala after Java.

Let us find the deference of expressiveness of Scala language using a small program written in Java and Scala that counts word. A single line in Scala where Java has taken more than 10 lines to achieve.

Code in Java:

Public class WordCount {
    Public static void main(String [] args){
        StringToken st= new StringToken(args[0]);
        Map<String, Integer> map= new HashMap<String, Integer>();
        while(st.hasMoreTokens()) {
            String word= st.nextToken();
            Integer count= map.get(word);
                If(count == null)
                    map.put(word, count+1);
         }
        System.out.println(map);
    }
}

Code in Scala:

Object WordCountScala extends App {
    Println( args(0).split(“ ”).groupBy(x => x).map(t => t._1 -> t._2.length))
}

5. Functional, Advanced Features

Scala familiarizes functional features like:

  • String comparison advancements
  • Pattern matching
  • Mixins, which incorporate functions in class definitions

6. Concise Syntax

Scala introduces new standard to be concise and readable at the same time. Scala compiler can do more than you expect. Following is a code example of same class written in Java and Scala.

Code in Java:

public class Book {
    private final String name;
    private final double price;
    public Star(String name, double price) {
        this.name = name;
        this.price = price;
    }
}

You can write the same thing, using Scala's case class as below:

case class Book(name: String, price: double)

6. Statically Typed Language

In a dynamic language errors are visible after running the program. Scala provides both static and dynamic features while programmers can avoid mistakes in code before running the program. Scala is dynamic and strongly statically typed language. It provides type interface for variables and functions that is better than limited type interface in other language like C# and Java. It also provides a compiler that uses type reference to a full extent.

7. Precise Syntax

Scala has very precise syntax while other language like Java has long syntax. The Scala compiler called as scalac can generate and work for a better code like to String(), equals(), etc.

Summary

Using Scala developer can unexpected bugs and errors by using functional programming techniques. Writing short and expressive code that builds type-safe and performs very high helps developers to be a better engineer. Code that works better, reads better, debugs better and runs faster than before and that takes less time to write, what else you need to look for?

 

You can leave comments below for any help or confusion. I will try to address those as soon possible. Also, you can contact iXora Solution Scala Team for any assistance on your project implementation at This email address is being protected from spambots. You need JavaScript enabled to view it.

 

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