Scala Mutable SortedMap addString() method with a separator with example

This method is identical to the addString() method but here a separator is also included.

Method Definition: def addString(b: StringBuilder, sep: String): StringBuilder

Where, sep is the separator stated.

Return Type: It returns the elements of the SortedMap in the String Builder and a separator is also added between the elements of the SortedMap.

Example #1:

// Scala program of addString()
// method with a separator
import scala.collection.SortedMap

// Creating object
object GfG
{

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

        // Creating a SortedMap
        val m1 = SortedMap("geeks" -> 5, "for" -> 3, "cs" -> 2)

        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_")

        // Displays output
        println(result)

    }
}

Output:

cs -> 2_for -> 3_geeks -> 5

Example #2:

// Scala program of addString()
// method with a separator
import scala.collection.SortedMap

// Creating object
object GfG
{

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

        // Creating a SortedMap
        val m1 = SortedMap("geeks" -> 5, "for" -> 3, "geeks" -> 2)

        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_")

        // Displays output
        println(result)

    }
}

Output:

for -> 3_geeks -> 2

So, here the identical keys are removed.