Scala List sum() method with example

The sum() method is utilized to add all the elements of the stated list.

Method Definition: def sum(num: math.Numeric[B]): B

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

Example #1:

// Scala program of sum()
// method

// Creating object
object GfG
{

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

        // Creating a list
        val m1 = List(1, 2, 3, 4, 5, 7)

        // Applying sum method
        val result = m1.sum

        // Displays output
        println(result)

    }
}

Output:

22

Example #2:

// Scala program of sum()
// method

// Creating object
object GfG
{

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

        // Creating a list
        val m1 = List(1, 0)

        // Applying sum method
        val result = m1.sum

        // Displays output
        println(result)

    }
}

Output:

1