variables-and-definitions.md

Topic	Using Properties/Fields as Method/Definitions in Scala Class/Object
Git sample	VarAndValTest.scala

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• Thanks to functional nature of Scala : var or val can be used as a def

• Focus on following three lines from program. You will see a var, a val and a def, actually doing same job

  /* A variable, value and definition, doing same jobs (increment of integer value) */
  var incrementVar = (x: Int) => x + 1 /* A definition using 'var' */
  val incrementVal = (x: Int) => x + 1 /* A definition using 'val' */
  def incrementDef = (x: Int) => x + 1 /* A definition using 'def' */

  /* Everyone will print '2' */
  println(incrementVar(1))
  println(incrementVal(1))
  println(incrementDef(1))