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： ...

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The Irish flag - or, in Irish, the 'Bratach na hÉireann' – was flown publicly for the first time on March 7, 1848, during that year's Young Irelander Rebellion in Waterford City at the Wolfe Tone ...

The inspiring image lifted the spirits of a nation—and raised suspicions that it was too good to be true. After five days of ferocious fighting, U.S. Marines raise the American flag atop Iwo Jima’s ...