Scala Stack foreach() method with example
In Scala Stack class
, the foreach() method is utilized to apply a given function to all the elements of the stack.
Method Definition: def foreach[U](f: (A) => U): Unit
Return Type: It returns all the elements of the stack after applying the given function to each of them.
Example #1:
// Scala program of foreach() // method // Import Stack import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating stack val s 1 = Stack( 6 , 2 , 3 , 4 , 5 ) // Applying foreach method to print the stack print( "Elements in the stack: " ) s 1 .foreach(x => print(x + " " )) } } |
Output:
Elements in the stack: 6 2 3 4 5
Example #2:
// Scala program of foreach() // method // Import Stack import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating stack val s 1 = Stack( 6 , 2 , 3 , 4 , 5 ) // Print the stack println(s 1 ) // Applying foreach method s 1 .foreach(x => println(x + " times " + x + " = " + x*x)) } } |
Output:
Stack(6, 2, 3, 4, 5) 6 times 6 = 36 2 times 2 = 4 3 times 3 = 9 4 times 4 = 16 5 times 5 = 25
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