The compiler can often infer types, so we don't need to annotate all of our code with types. These types are checked at compile time and this can help us to catch bugs.
This means that variables are assigned types. Second, Scala is a statically typed language. This makes our code less prone to bugs and easier to test. When a value is assigned to an immutable variable, we can't reassign it. We can reassign the values of mutable variables but functional programming does not permit this. Functional programming aims to eliminate mutability. You might have come across the object-oriented paradigm where everything is an object in languages like Python, JavaScript and Java. So what differentiates Scala from other languages? First, Scala combines both object-oriented and functional programming styles in one language. Scala is a lot terser than Java and we'll discover other benefits shortly. One of the reasons behind Scala's success is its take-up in the Java community as Scala was designed in part to improve some of the weaknesses of Java. This means that we can run Java alongside Scala in the same project. Scala compiles down to Java bytecode and runs on the Java Virtual Machine. Scala is a combination of the word scalable and language because it was designed to grow with the demands of users. And it was created by Martin Odersky who was an academic at a Swiss university. Firstly, Scala is a programming language. Please continue to the next page to read more.- Let's take a look at what Scala is. Scala has the same compilation model (separate compilation, dynamic class loading) as Java and allows access to thousands of existing high-quality libraries. Those Scala features without Java analogues, such as default and named parameters, compile as closely to Java as reasonably possible. Newer Java features like SAMs, lambdas, annotations, and generics have direct analogues in Scala. In particular, the interaction with the mainstream object-oriented Java programming language is as seamless as possible. Scala is designed to interoperate well with the popular Java Runtime Environment (JRE).
Classes can be extended by subclassing, and by using a flexible mixin-based composition mechanism as a clean replacement for multiple inheritance. Types and behaviors of objects are described by classes and traits. Scala is a pure object-oriented language in the sense that every value is an object. It seamlessly integrates features of object-oriented and functional languages. Scala is a modern multi-paradigm programming language designed to express common programming patterns in a concise, elegant, and type-safe way. You want a more detailed guide, consider obtaining a book or consulting
This is just a brief tour, not a full language tutorial. It is intended for newcomers to the language. This tour contains bite-sized introductions to the most frequently used features