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Program to convert Java set of Strings to an Indexed Sequence in Scala
  • Last Updated : 29 Dec, 2019
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A java set of Strings can be converted to an Indexed Sequence in Scala by utilizing toIndexedSeq method of Java in Scala. Here, you need to import Scala’s JavaConversions object in order to make this conversions work else an error will occur.
Now, lets see some examples and then discuss how it works in details.
Example:1#




// Scala program to convert Java set
// to an Indexed Sequence in Scala
  
// Importing Scala's JavaConversions object
import scala.collection.JavaConversions._
  
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating set of Strings in Java
        val set = new java.util.HashSet[String]()
          
        // Adding Strings to the set
        set.add("geeks")
        set.add("for")
        set.add("geeks")
          
        // Converting set to an Indexed Sequence
        val ind = set.toIndexedSeq
          
        // Displays Indexed Sequence
        println(ind)
      
    }
}
Output:
Vector(geeks, for)

Therefore, an indexed sequence is returned, but duplicate of any string is not displayed.
Example:2#




// Scala program to convert Java set
// to an Indexed Sequence in Scala
  
// Importing Scala's JavaConversions object
import scala.collection.JavaConversions._
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating set of Strings in Java
        val set = new java.util.HashSet[String]()
          
        // Adding Strings to the set
        set.add("I")
        set.add("am an")
        set.add("author")
          
        // Converting set to an Indexed Sequence
        val ind = set.toIndexedSeq
          
        // Displays Indexed Sequence
        println(ind)
      
    }
}
Output:
Vector(author, I, am an)

Here, the stated set returns an indexed sequence where, the string with greater length is displayed first and the strings with more number of words are displayed at last.

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