Java: Collect Stream as ArrayList or LinkedList


In order to convert a Stream as ArrayList or LinkedList make use of the Collectors toCollection() method.

Example:
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class StreamToArrayListLinkedList {

public static void main(String[] args) {

 Stream<Integer> streamOfIntegers = Stream.of(1,2,4,5,6,7,8,9,10);
 //Stream -> ArrayList
 ArrayList<Integer> listOfIntegers = streamOfIntegers.collect(Collectors.toCollection(ArrayList::new));
 System.out.println(listOfIntegers);

 Stream<String> streamOfStrings = Stream.of("A","B","C","D","E");
 //Stream -> LinkedList
 LinkedList<String> listOfStrings = streamOfStrings.collect(Collectors.toCollection(LinkedList::new));
 System.out.println(listOfStrings);

 }
}
Steam to ArrayList or LinkedList Output
Steam to ArrayList or LinkedList Output


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