CompletableFuture<String> future1 = CompletableFuture.supplyAsync(new Supplier<String>() {
            @Override
            public String get() {
                return "zhangphil";
            }
        });

        CompletableFuture<Integer> future2 = CompletableFuture.supplyAsync(new Supplier<Integer>() {
            @Override
            public Integer get() {
                return 2018;
            }
        });

        future2.thenAcceptBothAsync(future1, new BiConsumer<Integer, String>() {
            @Override
            public void accept(Integer integer, String s) {
                System.out.println(integer + " , " + s);
            }
        });

输出：

2018 , zhangphil