// functional/PredicateComposition.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.function.*;
import java.util.stream.*;

public class PredicateComposition {
  static Predicate<String>
    p1 = s -> s.contains("bar"),
    p2 = s -> s.length() < 5,
    p3 = s -> s.contains("foo"),
    p4 = p1.negate().and(p2).or(p3);
  public static void main(String[] args) {
    Stream.of("bar", "foobar", "foobaz", "fongopuckey")
      .filter(p4)
      .forEach(System.out::println);
  }
}
/* Output:
foobar
foobaz
*/