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 s1 = Stack(1, 3, 2, 7, 6, 5)

        // Print the stack
        println(s1)

        // Applying isEmpty method
        val result = s1.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 s1 = Stack()

        // Print the stack
        println(s1)

        // Applying isEmpty method
        val result = s1.isEmpty

        // Display output
        print("The stack is empty: " + result)

    }
}

Output:

Stack()
The stack is empty: true