Scala TreeSet mkString() method with example

The mkString() method is utilized to display all elements of the TreeSet in a string.

Method Definition: def mkString: String

Return Type: It returns a string containing all the element of the TreeSet.

Example #1:

// Scala program of mkString()
// method

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

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(3, 1, 5, 2, 4)

        // Print the TreeSet
        println(t1)

        // Applying mkString method
        val result = t1.mkString

        // Displays output
        print("TreeSet: " + result)

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
TreeSet: 12345

Example #2:

// Scala program of mkString()
// method

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

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet("u", "a", "i", "o", "e")

        // Print the TreeSet
        println(t1)

        // Applying mkString method
        val result = t1.mkString

        // Displays output
        print("TreeSet: " + result)

    }
}

Output:

TreeSet(a, e, i, o, u)
TreeSet: aeiou