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

Last Updated : 4 May, 2020
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 
// 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 
// 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.
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