Scala Stack apply() method with example
In Scala Stack class
, the apply() method is utilized to return an element at a given position in the stack. The top of the stack corresponds to the element at 0th position and so on.
Method Definition: def apply(idx: Int): A
Return Type: It returns an element at a given position in the stack.
Example #1:
// Scala program of apply() // method import scala.collection.mutable.Stack // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a stack val s 1 = Stack( 1 , 2 , 3 , 4 , 5 ) // Print the stack println(s 1 ) // Applying apply method val result = s 1 .apply( 0 ) // Display output println( "Element at 0th position: " + result) } } |
Output:
Stack(1, 2, 3, 4, 5) Element at 0th position: 1
Example #2:
// Scala program of apply() // method import scala.collection.mutable.Stack // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a stack val s 1 = Stack( "C++" , "Java" , "Python" , "Scala" ) // Print the stack println(s 1 ) // Applying apply method val result = s 1 .apply( 2 ) // Display output println( "Element at 2nd position: " + result) } } |
Output:
Stack(C++, Java, Python, Scala) Element at 2nd position: Python
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