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[200分]关于throws和throw和try{}catch(){}的区别和联系,书本上也说的迷迷 ...
不知什么时候该使用throws,什么时候使用throw,什么时候需要用try{}catch(){),他们之间的怎样联系的!他们分别有什么优缺点!! 、 还有我感觉throw就没什么用!为什么java要产生个throw,不懂!!
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