CODEWITHSUNDEEP
scalacompilationscalac
Omid Ebrahimi
Omid Ebrahimi

Reputation: 1190

How to use files that compiled using scalac command?

I have a file named Hello.scala that contains this simple code:

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

I compiled it using this command:

$ scalac Hello.scala

The result was two files named HelloWorld.class and HelloWorld$.class. What is these files? How can I use these files?

Note: My problem is not duplicate files. I want to know what is this files and how can I execute them?

Thanks for answer

Upvotes: 0

Views: 110

Answers (1)

Andreas Neumann
Andreas Neumann

Reputation: 10894

This files are normal Java Class / Bytecode Files.

You can run them with

scala HelloWorld
//Hello, world!

Normally you also could run them with

java HelloWorld$ // Because it is an object which gets the $ sign at the end

But this throws an error as there has to be some wiring done to handle the special case of Object.

Upvotes: 1

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