Scala Programming Language

A Scala Programming Language is a Multi-Paradigm Programming Language that ...

• AKA: Scala (Programming Language).
• See: Multi-Paradigm Programming Language, Programming Language, Scripting Language, Software Application, Static Typing, Type-Safe, Functional Programming, Currying, Pattern Matching, Algebraic Data Types, Lazy Evaluation, Tail Recursion, Immutable Object.

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References

2013

• (Wikipedia, 2013) ⇒ http://en.wikipedia.org/wiki/Scala_(programming_language) Retrieved:2013-12-12.
  • Scala ( /ˈskɑːlə/ ) is an object-functional programming and scripting language for general software applications, statically typed, designed to concisely express solutions in an elegant, type-safe and lightweight (low ceremonial) manner. Scala has full support for functional programming (including currying, pattern matching, algebraic data types, lazy evaluation, tail recursion, immutability, etc.). It cleans up what are often considered poor design decisions in Java (such as type erasure, checked exceptions, the non-unified type system) and adds a number of other features designed to allow cleaner, more concise and more expressive code to be written. It is intended to be compiled to Java bytecode, so the resulting executable runs on the JVM, and Java libraries can be used directly in Scala code and vice-versa. Like Java, Scala is statically typed and object-oriented, and uses a curly-brace syntax reminiscent of C. Unlike Java, Scala has many features of functional programming languages like Scheme, Standard ML and Haskell, including anonymous functions, type inference, list comprehensions (known in Scala as "for-comprehensions"), lazy initialization, extensive language and library support for avoiding side-effects, for pattern matching, case classes, delimited continuations, higher-order types, and much better support for covariance and contravariance. Scala has a unified type system (as in C#, but unlike in Java), where all types, including primitive types like integer and boolean, are subclasses of the type Any. Scala likewise has other features present in C# but not Java, including anonymous types, operator overloading, optional parameters, named parameters, raw strings (that may be multi-line in Scala), and no checked exceptions. The name Scala is a portmanteau of "scalable" and "language", signifying that it is designed to grow with the demands of its users. James Strachan, the creator of Groovy, described Scala as a possible successor to Java.

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