JAVA

java Iterable to list

@Test
public void whenConvertIterableToListUsingJava8_thenSuccess() {
    List<String> result = new ArrayList<String>();
    iterable.forEach(result::add);

    assertThat(result, contains("john", "tom", "jane"));
}

Iterator to list (Java)

List<Element> list = new ArrayList<>();
iterator.forEachRemaining(list::add);