Scala TreeSet mkString() method with a separator with example

Last Updated : 11 Nov, 2019

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

Method Definition: def mkString(sep: String): String Return Type: It returns all the elements of the TreeSet in a string along with a separator.

Example #1:

Scala

// 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: 1, 2, 3, 4, 5

Example #2:

Scala

// 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: a, e, i, o, u

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