The toList() method belongs to the concrete value members of the AbstractIterable class and is defined in the TraversableOnce and GenTraversableOnce classes. It converts a traversable or iterator to a list but it doesn’t terminates for infinite-sized collections.
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Method Definition:
def toList: List[A]
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Return Type:
It returns a list from the stated traversable or an iterator.>/li>
Example :
// Scala program of toList() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Declaring an iterator
val iter = Iterator( 8 , 9 , 10 , 11 )
// Applying toList method
val result = iter.toList
// Displays output
println(result)
}
} |
Output:
List(8, 9, 10, 11)
Therefore, a List is generated from an iterator.
Example :
// Scala program of toList() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Declaring an empty-iterator
val iter = Iterator()
// Applying toList method
val result = iter.toList
// Displays output
println(result)
}
} |
Output:
List()
Therefore, an empty List is generated from an empty-iterator.