// streams/Reduce.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.*;

class Frobnitz {
 int size;
 Frobnitz(int sz) { size = sz; }
 @Override
 public String toString() {
 return "Frobnitz(" + size + ")";
 }
 // Generator:
 static Random rand = new Random(47);
 static final int BOUND = 100;
 static Frobnitz supply() {
 return new Frobnitz(rand.nextInt(BOUND));
 }
}

public class Reduce {
 public static void main(String[] args) {
 Stream.generate(Frobnitz::supply)
 .limit(10)
 .peek(System.out::println)
 .reduce((fr0, fr1) -> fr0.size < 50 ? fr0 : fr1)
 .ifPresent(System.out::println);
 }
}
/* Output:
Frobnitz(58)
Frobnitz(55)
Frobnitz(93)
Frobnitz(61)
Frobnitz(61)
Frobnitz(29)
Frobnitz(68)
Frobnitz(0)
Frobnitz(22)
Frobnitz(7)
Frobnitz(29)
*/