// concurrent/CompletableUtilities.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.
package onjava;
import java.util.concurrent.*;

public class CompletableUtilities {
 // Get and show value stored in a CF:
 public static void showr(CompletableFuture<?> c) {
 try {
 System.out.println(c.get());
 } catch(InterruptedException
 | ExecutionException e) {
 throw new RuntimeException(e);
 }
 }
 // For CF operations that have no value:
 public static void voidr(CompletableFuture<Void> c) {
 try {
 c.get(); // Returns void
 } catch(InterruptedException
 | ExecutionException e) {
 throw new RuntimeException(e);
 }
 }
}