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