malaikuangren

摘要： Actually There are really something we may be miscoception . and so easilygo wrong . and the phenomenonare so counterintuitiveVisibility is subtle because the things that can go wrong are so counterintuitive. In a single-threaded environment, if you write a value to a variable and later read that va 阅读全文

摘要： the answer is depend on.You can let the servlet implementSingleThreadModelto get the container to create a pool of multiple instances of the same servlet class. The maximum pool size depends on the container used, on Tomcat for example, this is 20. But, a bigbut, this interface is deprecated since S 阅读全文

摘要： Java provides a built-in locking mechanism for enforcing atomicity: the synchronizedblock.There is no inherent relationship between an object's intrinsic lock and its state; an object's fields need not be guarded by its intrinsic lock, though this is a perfectly valid locking convention that 阅读全文