Demonstration of handling Options retrieved from a Map[String, String] ... More details at: http://sdanzig.blogspot.com/2013/06/the-option-design-pattern.html

Handling Option from Map.scala

  def firstToLastNameMap : Map[String,String] = Map(
    "beth"->"peterson",
    "harry"->"smith",
    "john"->"doe"
  )
  
  def retrieveLastNameFromMap(firstName: String) = {
    firstToLastNameMap.get(firstName)
  }

// Sample usage
  Console.println("\nRetrieving last name of harry...")
  talkAboutValue(retrieveLastNameFromMap("harry"))

  Console.println("\nRetrieving last name of ben...")
  talkAboutValue(retrieveLastNameFromMap("ben"))

/* Output

Retrieving last name of harry...
value is the String "smith", length of 5

Retrieving last name of ben...
value is None

*/