Scala Language Working with data in immutable style
Remarks
Value and variable names should be in lower camel case
Constant names should be in upper camel case. That is, if the member is final, immutable and it belongs to a package object or an object, it may be considered a constant
Method, Value and variable names should be in lower camel case
Source: http://docs.scala-lang.org/style/naming-conventions.html
This compile:
val (a,b) = (1,2)
// a: Int = 1
// b: Int = 2
but this doesn't:
val (A,B) = (1,2)
// error: not found: value A
// error: not found: value B
