Scala Iterator mkString() method with example

The mkString() method belongs to the concrete value member of the class Abstract Iterator. It is utilized to display all the elements of the collection in a string.
Method Definition:

val result = iter.mkString

Here, we are storing string in result variable.
Return Type:
It returns the string representation of the stated collection.
Example #1:

// Scala program of mkString()
// method

// Creating object
object GfG
{

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

        // Creating an Iterator
        val iter = Iterator(3, 6, 15, 19, 21)

        // Applying mkString method
        val result = iter.mkString

        // Displays output
        println(result)

    }
}

Output:

36151921

Example #2:

// Scala program of mkString()
// method

// Creating object
object GfG
{

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

        // Creating an Iterator
        val iter = Iterator(0, 0, 1)

        // Applying mkString method
        val result = iter.mkString

        // Displays output
        println(result)

    }
}

Output:

001