// concurrent/CollectionIntoStream.java

// (c)2020 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 onjava.*;

import java.util.*;

import java.util.stream.*;

public class CollectionIntoStream {

public static void main(String[] args) {

List<String> strings =

Stream.generate(new Rand.String(5))

.limit(10)

.collect(Collectors.toList());

strings.forEach(System.out::println);

// Convert to a Stream for many more options:

String result = strings.stream()

.map(String::toUpperCase)

.map(s -> s.substring(2))

.reduce(":", (s1, s2) -> s1 + s2);

System.out.println(result);

}

}

/* Output:

btpen

pccux

szgvg

meinn

eeloz

tdvew

cippc

ygpoa

lkljl

bynxt

:PENCUXGVGINNLOZVEWPPCPOALJLNXT

*/