3 

     4 

     5 

     6 

     7 // Implicits

     8 //===========

     9 //

    10 // for example adding your own methods to Strings:

    11 // imagine you want to increment strings, like

    12 //

    13 //     "HAL".increment

    14 //

    15 // you can avoid ugly fudges, like a MyString, by

    16 // using implicit conversions

    17 

    18 

    19 implicit class MyString(s: String) {

    20   def increment = for (c <- s) yield (c + 1).toChar 

    21 }

    22 

    23 "HAL".increment