Scala Stack map() method with example
In Scala Stack class
, the map() method is utilized to build a new stack by applying a function to all elements of the given stack.
Method Definition: def map[B](f: (A) => B): Stack[B]
Return Type: It returns a new stack containing all the elements after applying the given function.
Example #1:
// Scala program of map() // method // Import Stack import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating stack val s 1 = Stack( 5 , 3 , 2 , 7 , 6 , 1 ) // Print the stack println(s 1 ) // Applying map method val result = s 1 .map(x => x*x) // Display output print( "New stack after squaring all elements: " + result) } } |
Output:
Stack(5, 3, 2, 7, 6, 1) New stack after squaring all elements: Stack(25, 9, 4, 49, 36, 1)
Example #2:
// Scala program of map() // method // Import Stack import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating stack val s 1 = Stack( 1 , 3 , 2 , 7 , 6 , 5 ) // Print the stack println(s 1 ) // Applying map method val result = s 1 .map(x => x/ 2 ) // Display output print( "New queue after dividing all elements by 2: " + result) } } |
Output:
Stack(1, 3, 2, 7, 6, 5) New queue after dividing all elements by 2: Stack(0, 1, 1, 3, 3, 2)