在两个完成的阶段其中之一上调用消费函数

和前一个例子很类似了，只不过我们调用的是消费者函数 (Function变成Consumer):

static void acceptEitherExample() {String original = "Message";StringBuilder result = new StringBuilder();CompletableFuture cf = CompletableFuture.completedFuture(original).thenApplyAsync(s -> delayedUpperCase(s)).acceptEither(CompletableFuture.completedFuture(original).thenApplyAsync(s -> delayedLowerCase(s)),s -> result.append(s).append("acceptEither"));cf.join();assertTrue("Result was empty", result.toString().endsWith("acceptEither"));
}