OnJava8-Examples/streams/FileToWordsBuilder.java

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

public class FileToWordsBuilder {
  Stream.Builder<String> builder = Stream.builder();
  public FileToWordsBuilder(String filePath)
  throws Exception {
    Files.lines(Paths.get(filePath))
      .skip(1) // Skip the comment line at the beginning
      .forEach(line -> {
        for(String w : line.split("[ .?,]+"))
          builder.add(w);
      });
  }
  Stream<String> stream() { return builder.build(); }
  public static void
  main(String[] args) throws Exception {
    new FileToWordsBuilder("Cheese.dat").stream()
      .limit(7)
      .map(w -> w + " ")
      .forEach(System.out::print);
  }
}
/* Output:
Not much of a cheese shop really
*/