on what things stream java 8 can be applied code example

Example 1: stream java example

public class StreamBuilders 
{
     public static void main(String[] args)
     {
         Stream<Integer> stream = Stream.of( new Integer[]{1,2,3,4,5,6,7,8,9} );
         stream.forEach(p -> System.out.println(p));
     }
}

Example 2: java streams

Arrays.asList("a1", "a2", "a3")
    .stream()
    .findFirst()
    .ifPresent(System.out::println);  // a1