Scala Stack intersect() method with example

In Scala Stack class, the intersect() method is utilized to return a new stack that consists of elements that are present in both the given stacks.

Method Definition: def intersect[B >: A](that: collection.Seq[B]): Stack[A]

Return Type: It returns a new stack that consists of elements that are present in both the given stacks.

Example #1:

// Scala program of intersect()
// method

// Import Stack
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating stacks
        val s1 = Stack(1, 3, 2, 7, 6, 5)

        val s2 = Stack(1, 13, 2, 17, 6, 15)

        // Print the stack
        println("Stack_1: " + s1)

        println("Stack_2: " + s2)

        // Applying intersect method
        val result = s1.intersect(s2)

        // Display output
        print("The elements in both the stacks: ")

        result.foreach(x => print(x + " "))

    }
}

Output:

Stack_1: Stack(1, 3, 2, 7, 6, 5)
Stack_2: Stack(1, 13, 2, 17, 6, 15)
The elements in both the stacks: 1 2 6

Example #2:

// Scala program of intersect()
// method

// Import Stack
import scala.collection.mutable._

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating stacks
        val s1 = Stack(1, 3, 2, 7, 6, 5)

        val s2 = Stack(11, 3, 12, 7, 16, 5)

        // Print the stack
        println("Stack_1: " + s1)

        println("Stack_2: " + s2)

        // Applying intersect method
        val result = s1.intersect(s2)

        // Display output
        print("The elements in both the stacks: " + result)

    }
}

Output:

Stack_1: Stack(1, 3, 2, 7, 6, 5)
Stack_2: Stack(11, 3, 12, 7, 16, 5)
The elements in both the stacks: Stack(3, 7, 5)