The Collectors.toList returns a collector that accumulates the input elements into a new list.

Java 8 Stream collect to list example

The example filters a list of strings and transforms the stream into a list. We filter the list to include only strings whose length is equal to four.

  import java.util.List; import java.util.ArrayList; import java.util.stream.Collectors; public class JavaCollectToListEx { public static void main(String[] args) { List < String > programmingLanguages = new ArrayList < > (); programmingLanguages.add("C"); programmingLanguages.add("C++"); programmingLanguages.add("Java"); programmingLanguages.add("Kotlin"); programmingLanguages.add("Python"); programmingLanguages.add("Perl"); programmingLanguages.add("Ruby"); // filter all four character words into a list List < String > result = programmingLanguages.stream().filter(word -> word.length() == 4) .collect(Collectors.toList()); System.out.println(result); } }  

Output:

 [Java, Perl, Ruby]