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Scala is more than one paradigm (multi-paradigm) programming language, designed to integrate object-oriented programming and functional programming of various characteristics.
Scala runs on the Java Virtual Machine, and is compatible with existing Java programs.
Scala source code is compiled into Java byte code, so it can run on JVM, and you can call the existing Java class libraries.
This tutorial is for want to learn from scratch Scala programming language developers. Of course, this tutorial will be a number of modules in depth, so you better understand Scala applications.
Before proceeding with the tutorial, you should understand some basic computer programming terminology. If you learned Java programming language, it will help you quickly understand the Scala programming.
Learning Java Tutorial .
The following is written in Scala typical Hello World program:
Save the above code HelloWorld.scala file, perform the above scala program (you can also be performed online directly):
$ scalac HelloWorld.scala $ scala HelloWorld.scala
The output is:
Hello, world!
Here is a Scala language specification .pdf documents, as a study reference: