Scala Stack sum() method with example

In Scala Stack class, the sum() method is utilized to return the sum of all the elements of the stack.

Method Definition: def sum: A

Return Type: It returns the sum of all the elements of the stack.

Example #1:

// Scala program of sum()
// method

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

// Creating object
object GfG
{

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

        // Creating stack
        val s1 = Stack(1, 2, 3, 4, 5)

        // Print the stack
        println(s1)

        // Applying sum method
        val result = s1.sum

        // Display output
        print("Sum of all elements: " + result)

    }
}

Output:

Stack(1, 2, 3, 4, 5)
Sum of all elements: 15

Example #2:

// Scala program of sum()
// method

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

// Creating object
object GfG
{

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

        // Creating stack
        val s1 = Stack(5, 2, 13, 7, 1)

        // Print the stack
        println(s1)

        // Applying sum method
        val result = s1.sum

        // Display output
        print("Sum of all elements: " + result)

    }
}

Output:

Stack(5, 2, 13, 7, 1)
Sum of all elements: 28