Both are JVM-based languages, Scala produces the same bytecode as Java and runs in the Java Virtual Machine. One more similarity between Scala and Java is that both are object-oriented, Scala goes a step further and also supports the functional programming paradigm, which is one of its strengths. This is the comparison between Scala and Java programming languages taking into account several factors. While supporting all the object-oriented features available in Java (and in fact, augmenting them in several ways), Scala also provides a large number of capabilities normally found only in functional programming languages.
Another big difference between these two programming languages is that functions are nothing more than objects in Java whereas, in Scala, functions are variables. Yes, it may seem more complex to the Scala novice, but once you really fully understand the concepts behind it, Scala code will seem much more simplistic than Java code. However, calling the functions of one language in the code of the other can be a bit tricky as both Scala and Java have certain unique programming aspects. Scala is a pure object-oriented programming language (in the sense that every value is an object) that provides the features of functional languages (in the sense that every function is a value) as well.
In terms of programming paradigms, Scala inherits the object-oriented model from Java and extends it in several ways. Overall, Scala and Java are two excellent programming languages with different strengths and limitations. Scala also has many functional programming facilities, including features found in advanced functional languages such as Haskell, and tries to be agnostic between the two paradigms, leaving the developer to choose between the two paradigms or, more often, some combination of them. Before you start reading this post, if you really want to learn Scala from scratch you can check out my previous post as well, which is one of them in this Scala series.
On the other hand, if you are well familiar with Java, C, C, and Python, Scala would be the perfect choice for you to improve your programming skills and get better career opportunities at the same time. Scala enough to give you a preliminary idea of the power and capabilities of Scala and whet your appetite for learning the language. Scala, got its name after it is a feature called scalability that makes Scala unique from other programming languages. The popularity and use of Scala is growing rapidly, as evidenced by the increasing number of open positions for Scala developers.
This Spark certification training course helps you master both the essential skills of the open source Apache Spark framework and the Scala programming language. Unlike Java, Scala has many features of functional programming languages such as Scheme, Standard ML and Haskell, including currying, immutability, lazy evaluation and pattern matching.