Installation

• using sdkman, get list of scala available for installation sdk list scala
• to install scala sdk install scala
• to check version scala --version

Getting Started

Using Scala REPL

Scala’s REPL (Read-Eval-Print Loop) is perfect for experimentation:

1

scala

Here is an example of using the REPL:

1
2
3
4
5
6
7
8

mw@mac ~ % scala # type scala to start the REPL
Welcome to Scala 3.7.3 (21.0.2, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.                           
scala> 1+1
val res0: Int = 2                                            
scala> "Hello, " + "Scala!"
val res1: String = Hello, Scala!
# press ctrl+D to exit

Using Text Editor

• using any text editor of your choice, create a new file with the extension .scala
• write your scala code in the file
• save the file
• to run the scala code, type scala <filename.scala> in the terminal
• example:

  1 2 3 4 5 6

  mw@mac scratch % cat Hello.scala object Hello { def main(args: Array[String]): Unit = { println("Hello Scala") } }