Scala Stack last() method with example
In Scala Stack class
, the isEmpty() is utilized to check if the stack is empty or not.
Method Definition: def isEmpty: Boolean
Return Type: It returns true if the stack is empty or else it returns false.
Example #1:
// Scala program of isEmpty() // 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 isEmpty method val result = s 1 .isEmpty // Display output print( "The stack is empty: " + result) } } |
Output:
Stack(1, 3, 2, 7, 6, 5) The stack is empty: false
Example #2:
// Scala program of isEmpty() // method // Import Stack import scala.collection.mutable. _ // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating stack val s 1 = Stack() // Print the stack println(s 1 ) // Applying isEmpty method val result = s 1 .isEmpty // Display output print( "The stack is empty: " + result) } } |
Output:
Stack() The stack is empty: true