// streams/StreamOfStreams.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.util.stream.*;

public class StreamOfStreams {

public static void main(String[] args) {

Stream.of(1, 2, 3)

.map(i -> Stream.of("Gonzo", "Kermit", "Beaker"))

.map(e-> e.getClass().getName())

.forEach(System.out::println);

}

}

/* Output:

java.util.stream.ReferencePipeline$Head

java.util.stream.ReferencePipeline$Head

java.util.stream.ReferencePipeline$Head

*/