How to convert a java.util.List to a Scala list

Question

I have this Scala method with below error. Cannot convert into a Scala list.

 def findAllQuestion():List[Question]={
   questionDao.getAllQuestions()
 } 
         


        

Answer 1

Starting Scala 2.13, the package scala.collection.JavaConverters is marked as deprecated in favor of scala.jdk.CollectionConverters:

import scala.jdk.CollectionConverters._

// val javaList: java.util.List[Int] = java.util.Arrays.asList(1, 2, 3)
javaList.asScala.toList
// List[Int] = List(1, 2, 3)