Spark is written in Scala, so you will often see Scala and Spark together. Spark also provides libraries for SQL, machine learning, and stream processing. Scala also supports Operator overloading and has a built-in lazy feature to defer computation while Java does not.Īpache Spark is a general-purpose distributed processing engine with four different APIs that support languages Scala, Python, R, and Java. Scala’s syntax is also more succinct, but learning Scala is generally a bit harder than Java since it combines both paradigms. The main difference is Scala’s ability to handle Functional Programming and multi-core architecture. They also have similar libraries and compilers (called javac and scalac). They are both object oriented and both produce the same bytecode. There are some similarities since Scala is a new generation JVM language. Scala has cool features: Scala brings with it many cool features to make your life easier including immutability, type interface, pattern matching, string interpolation, traits, an extensive collection of classes, and lazy computation. According to StackOverflow, Scala ranked 17th for most wanted language. Even some Java developers are joining in and switching to Scala. Scala is growing: Both the online community and Scala frameworks are growing, so there is lots of innovative information out there. Scala also combines the good qualities of statically typed and dynamic languages. The best of both worlds: Scala combines the benefits of OOP with Functional Programming, making it a stronger, more efficient language. Scala developers in the US are some of the highest paid globally. Scala pays well: Scala recently ranked 4th for the programming language with the highest salary. Scala syntax is precise: Compared to Java, Scala syntax is quite precise, making it more readable yet more concise. Learning the language will make you more in demand for the changing market. Big companies are hiring more and more Scala programmers as the language becomes more popular. It’s in high demand: Scala is increasingly popular in certain markets. Other companies such as Apple, The Guardian, Meetup, Verizon, SoundCloud, Airbnb, and Duolingo use Scala in certain teams or have released statements that they will be switching to Scala. Scala is used in finance-related applications, content management systems, online learning platforms, distributed applications, and more.Ĭompanies like Google (for Android, Twitter, LinkedIn, Sony, Quora, and Foursquare use Scala regularly in their programs. Scala is commonly used for strong static systems, data science, and machine learning. In fact, Java libraries can even be incorporated in Scala code, and Scala is compiled in Java bytecode, so it is executed in the JVM (Java Virtual Machine). Scala was designed to improve upon Java, so you can call Java methods, inherit from Java classes, and more. The name is an acronym from Scalable Language. The Scala programming language was created in 2001 by Martin Odersky to combine functional programming and object-oriented programming into one language. Take Educative’s hands-on Scala lessons for free, with no experience required. Part 3: Resources for Learning/Practicing Scala.Part 2: Introduction to Scala Syntax and Tools. If you’re looking to learn Scala or you’re just curious about what it has to offer, you’re in the right place. T._2 // Part of a method name, such as tuple gettersġ_000_000 // Numeric literal separator (Scala 2.13+)Īn excellent explanation of the uses of the underscore is Scala _ magic.Scala is an exciting programming language that has been gaining popularity across the industry. M _ // Eta expansion of method into method valueĬase _ => // Wild card pattern - matches anythingįor (_ ! // An underscore must separate alphanumerics from symbols on identifiers _ + _ // Anonymous function placeholder parameter Ignored parameters List(1, 2, 3) foreach // Exception, everything except Predefĭef f] // Higher kinded type parameter Higher kinded type parameters case class A,T](a: K) The ones I can think of are Existential types def foo(l: List]) =.
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