Developer - Code style

General rules

• Variable names should always be in camelCase and do not start with a capital letter

// correct: 
val outputFromProgram: String = "foobar"

// incorrect:
val OutputFromProgram: String = "foobar"

• Class names should always be in CamelCase and always start with a capital letter

// correct:
class ExtractReads {}

// incorrect:
class extractReads {}

• Avoid using null; Scala's Option type should be used instead

// correct:
val inputFile: Option[File] = None

// incorrect:
val inputFile: File = null

• If a method/value is designed to be overridden make it a def and override it with a def, we encourage you to not use val