// streams/RandomWords.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.*;
import java.util.stream.*;
import java.util.function.*;
import java.io.*;
import java.nio.file.*;

public class RandomWords implements Supplier<String> {
 List<String> words = new ArrayList<>();
 Random rand = new Random(47);
 RandomWords(String fname) throws IOException {
 List<String> lines =
 Files.readAllLines(Paths.get(fname));
 // Skip the first line:
 for(String line : lines.subList(1, lines.size())) {
 for(String word : line.split("[ .?,]+"))
 words.add(word.toLowerCase());
 }
 }
 public String get() {
 return words.get(rand.nextInt(words.size()));
 }
 @Override
 public String toString() {
 return words.stream()
 .collect(Collectors.joining(" "));
 }
 public static void
 main(String[] args) throws Exception {
 System.out.println(
 Stream.generate(new RandomWords("Cheese.dat"))
 .limit(10)
 .collect(Collectors.joining(" ")));
 }
}
/* Output:
it shop sir the much cheese by conclusion district is
*/