Scala : Hello, World!

What is Scala?

• Functional + Object Oriented Programming
• https://www.scala-lang.org/

Install Scala on Centos 7

• sudo yum -y update
• sudo yum -y upgrade
• wget https://downloads.lightbend.com/scala/2.12.8/scala-2.12.8.rpm
• sudo yum -y install scala-2.12.8.rpm

HelloWorld.scala

object HelloWorld {
   def main(args: Array[String]): Unit = {
      println("Hello, world!")
   }
}

 Compile and Execute

• scalac HelloWorld.scala
• scala helloWorld