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Program to convert Java Set to List in Scala

  • Last Updated : 25 Nov, 2019

A java Set can be converted to a List in Scala by utilizing toList 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 List 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[String]()
      
    // Adding string to the set
    set.add("GfG")
    set.add("is a")
    set.add("CS-portal")
      
    // Converting set to list
    val list = set.toList
      
    // Displays set
    println(list)
  
}
}
Output:
List(GfG, is a, CS-portal)

Therefore, a list of string is returned. Here, firstly a set is created where, string elements are added to it utilizing add method. After that toList method is utilized in order to convert the stated set to the list of Strings.
Example:2#




// Scala program to convert Java set 
// to List 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[String]()
      
    // Adding string to the set
    set.add("Nidhi")
    set.add("is an")
    set.add("Author")
      
    // Converting set to list
    val list = set.toList
      
    // Displays set
    println(list)
  
}
}
Output:
List(nidhi, Author, is an)

It is same as above example but here the string with more words is displayed later than the strings with lesser one.


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