Scala Stack head() method with example
Last Updated :
03 Nov, 2019
In Scala Stack class
, the head() method is utilized to return the top element of the stack.
Method Definition: def head: A
Return Type: It returns the top element of the stack.
Example #1:
import scala.collection.mutable. _
object GfG
{
def main(args : Array[String])
{
val s 1 = Stack( 1 , 3 , 2 , 7 , 6 , 5 )
println(s 1 )
val result = s 1 .head
print( "Top element of the stack: " + result)
}
}
|
Output:
Stack(1, 3, 2, 7, 6, 5)
Top element of the stack: 1
Example #2:
import scala.collection.mutable. _
object GfG
{
def main(args : Array[String])
{
val s 1 = Stack( 5 , 3 , 2 , 7 , 6 , 1 )
println(s 1 )
val result = s 1 .head
print( "Top element of the stack: " + result)
}
}
|
Output:
Stack(5, 3, 2, 7, 6, 1)
Top element of the stack: 5
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