
Idiomatically determine all the lowercase and uppercase letters   (of the Latin [English] alphabet)   being used currently by a computer programming language.
The method should find the letters regardless of the hardware architecture that is being used (ASCII, EBCDIC, or other).



Task requirements
Display the set of all:

   lowercase letters 
   uppercase letters

that can be used (allowed) by the computer program,


where   letter   is a member of the Latin (English) alphabet:     a ──► z     and     A ──► Z.



You may want to mention what hardware architecture is being used, and if applicable, the operating system.



See also
 Idiomatically determine all the characters that can be used for symbols.


// version 1.0.6
 
fun main(args: Array<String>) {
    print("Lower case : ")
    for (ch in 'a'..'z') print(ch)
    print("\nUpper case : ")
    for (ch in 'A'..'Z') print(ch)
    println()
}