Program to convert Java list to Traversable in Scala

Last Updated : 03 Dec, 2019

A java list 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 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 list  
// 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 list in Java 
        val list = new java.util.ArrayList[Int]() 
          
        // Adding integers to the list 
        list.add(5) 
        list.add(6) 
        list.add(7) 
          
        // Converting list to a Traversable  
        val tra = list.toTraversable 
          
        // Displays Traversable 
        println(tra) 
      
    } 
} 

Output:

Buffer(5, 6, 7)

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

// Scala program to convert Java list  
// 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 list in Java 
        val list = new java.util.ArrayList[Int]() 
          
        // Adding integers to the list 
        list.add(3) 
        list.add(1) 
        list.add(2) 
          
        // Converting list to a Traversable  
        val tra = list.toTraversable 
          
        // Displays Traversable 
        println(tra) 
      
    } 
} 