Scala Map addString() method with a separator with example

Scala Map addString() method with a separator with example

Last Updated : 13 Aug, 2019

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 map in the String Builder and a separator is also added between the elements of the map.

Example #1:

Scala

// Scala program of addString()
// method with a separator

// Creating object
object GfG
{ 

    // Main method
    def main(args:Array[String])
    {
    
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "cs" -> 2)
        
        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_") 
        
        // Displays output
        println(result)
    
    }
}

Output:

geeks -> 5_for -> 3_cs -> 2

Example #2:

Scala

// Scala program of addString()
// method with a separator

// Creating object
object GfG
{ 

    // Main method
    def main(args:Array[String])
    {
    
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "geeks" -> 2)
        
        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_") 
        
        // Displays output
        println(result)
        
    }
}

Output:

geeks -> 2_for -> 3

So, here the identical keys are removed.

Scala Map addString() method with a separator with example

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