Scala Stack contains() method with example
In Scala Stack class, the contains() method is utilized to check if an element is present in the stack of not.
Method Definition: def contains(elem: A): Boolean
Return Type: It returns true if the element is present in the stack or else it returns false.
Example #1:
// Scala program of contains() // method import scala.collection.mutable.Stack // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a stack val s1 = Stack(1, 2, 3, 4, 5) // Print the stack println(s1) // Applying contains method val result = s1.contains(10) // Display output println("Stack contains element 10: " + result) } } |
Output:
Stack(1, 2, 3, 4, 5) Stack contains element 10: false
Example #2:
// Scala program of contains() // method import scala.collection.mutable.Stack // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a stack val s1 = Stack("C++", "Java", "Python", "Scala") // Print the stack println(s1) // Applying contains method val result = s1.contains("Scala") // Display output println("Stack contains element Scala: " + result) } } |
Output:
Stack(C++, Java, Python, Scala) Stack contains element Scala: true