Convert Stream to Array of specific type in Java 8 ?

Question

What is the best and the easiest way to convert a Java 8 Stream into an array of a Specific type?

Answer 1

This can be done using toArray(String[]::new) as the terminal operation on the stream.

toArray(size -> new String[size]) or toArray(String[]::new).

To filter out names with length greater than 10 characters -

String[] men = names.stream()
                          .filter(name -> name.length() > 10)
                          .toArray(String[]::new);

In this example the terminal method toArray(String[]::new) converts the resulting array to the String[] type.
We can use the specific type in this method and it will convert it the mentioned type only if it is possible to do so.

Comments

As the terminal operation on the stream. We can use the specific type in this method and it will convert.