Scala Iterator toSet() method with example

The toSet() method belongs to the concrete value member of the class Abstract Iterator. It is defined in the class IterableOnceOps.

Method Definition: def toSet[B >: A]: immutable.Set[B]

Return Type: It returns a set from the stated collection.

Example #1:

// Scala program of toSet()
// method

// Creating object
object GfG
{

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

        // Creating a Iterator
        val iter = Iterator(5, 6, 8, 9)

        // Applying toSet method
        val result = iter.toSet

        // Displays output
        println(result)

    }
}

Output:

Set(5, 6, 8, 9)

Example #2:

// Scala program of toSet()
// method

// Creating object
object GfG
{

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

        // Creating an empty Iterator
        val iter = Iterator()

        // Applying toSet method
        val result = iter.toSet

        // Displays output
        println(result)

    }
}

Output:

Set()