Scala Set count() method with example

The count() method is utilized to count the number of elements in the set.

Method Definition: def count(p: (A) => Boolean): Int

Return Type: It returns the number of elements present in the set.

Example #1:

// Scala program of count()
// method

// Creating object
object GfG
{

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

        // Creating sets
        val s1 = Set(1, 2, 3, 4, 5)

        // Applying count method
        val result = s1.count(z=>true)

        // Displays output
        println(result)

    }
}

Output:

5

Example #2:

// Scala program of count()
// method

// Creating object
object GfG
{

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

        // Creating sets
        val s1 = Set()

        // Applying count method
        val result = s1.count(z=>true)

        // Displays output
        println(result)

    }
}

Output:

0