JUC（一）异步调用CompletableFuture

1. 有返回值的异步调用CompletableFuture.supplyAsync()

1. 代码示例

//有返回值的异步调用
CompletableFuture<Integer> completableFutureSupply = CompletableFuture.supplyAsync(() -> {
   
   
    System.out.println(Thread.currentThread().getName() + "  supplyAsync => Integer");
    int i = 10/1;
    return 1024;
});

2.获取返回值

System.out.println(completableFutureSupply.