amanjpro

import System.Posix.Process
import System.Posix.Types
import System.Directory

callSystem :: String -> [String] -> IO ()
callSystem "cd" args = setCurrentDirectory $ head args


builtinCommands :: [String]
builtinCommands = ["cd"]

amanjpro

f1 :: Int -> Int -> Int
f1 x y = let f2 :: Int -> Int -> Int
             f2 x z = x + y + z
          in let f2 :: Int -> Int -> Int
                 f2 y z = if y == 10 then x + y + z else f2 10 9
              in f2 0 10 + y + x



f2 :: Int -> (Int -> Int, Int -> Int)

amanjpro

/**
  * In Scala methods/functions can be called in different ways.
  * Here are some possible ways, for the following function/method:
  */

def m(n: Int): Int = n + 2

// C-like function/method calls

m(2)

amanjpro

// Let's define a class
class Animal(val kind: String)

// We have a utility class, which defines eats for Animal
class AnimalUtils {
  def eats(p: Animal): String = ...
}

// We can call eats like that:
AnimalUtils.eats(new Animal("sheep"))