Skip to content
Related Articles

Related Articles

Program to convert Java Set to a Traversable in Scala
  • Last Updated : 02 Dec, 2019

A java Set can be converted to a Traversable collection in Scala by utilizing toTraversable method of Java in Scala. Here, we need to import Scala’s JavaConversions object in order to make this conversions work.
Now, lets see some examples and then discuss how it works in details.
Example:1#




// Scala program to convert Java set 
// to a Traversable in Scala
  
// Importing Scala's JavaConversions object
import scala.collection.JavaConversions._
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating set in Java
        val set = new java.util.HashSet[Int]()
          
        // Adding integers to the set
        set.add(9)
        set.add(10)
        set.add(11)
          
        // Converting set to a Traversable 
        val tra= set.toTraversable
          
        // Displays traversable 
        println(tra)
      
    }
}
Output:
Set(9, 10, 11)

Therefore, a Traversable collection is returned. Here, firstly a set is created where, integer elements are added to it utilizing add method. After that toTraversable method is utilized in order to convert the stated set to a Traversable collection.
Example:2#




// Scala program to convert Java set 
// to a Traversable in Scala
  
// Importing Scala's JavaConversions object
import scala.collection.JavaConversions._
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating set in Java
        val set = new java.util.HashSet[Int]()
          
        // Adding integers to the set
        set.add(7)
        set.add(6)
        set.add(5)
          
        // Converting set to a Traversable 
        val tra= set.toTraversable
          
        // Displays traversable 
        println(tra)
          
    }
}
Output:
Set(5, 6, 7)

It is same as above example but here the elements of the set are not present in a proper order. But the traversable returned is in proper order.




My Personal Notes arrow_drop_up
Recommended Articles
Page :