Hugo Marques explains how to navigate Java concurrency at scale, moving beyond simple frameworks to solve high-throughput IO ...

在Java并发编程的世界里，synchronized是一块绕不开的“基石”——它像一把“互斥锁”，守护着共享资源免受多线程“争抢”的伤害；又似一道“安全屏障”，将竞态条件、数据不一致等线程安全问题隔绝在外。然而，很多开发者对synchronized的认知停留在“加锁语法糖”层面，实践中频频踩坑： ...

Find groups of four items that share something in common. Select four items and tap 'Submit' to check if your guess is correct. Find the groups without making 4 mistakes! Each puzzle has exactly one ...

NPR's weekly news quiz hosted by Peter Sagal. Have a laugh and test your knowledge with today's funniest comedians and a celebrity guest.

Using the power of redstone, a skilled Minecraft builder creates a functional Millennium Falcon that can even shoot fireballs ...