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Tag Archives: Semaphores

Locking with a semaphore : An example


Concurrency is one aspect that brings along interesting challenges along with it. If not correctly handled, it brings about race conditions that will baffle people because those issues just pop up from time to time and work flawlessly sometimes. The Java language gives many ways of handling race conditions when dealing with concurrent threads accessing a common resource. Some include; ...

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Java Concurrency Tutorial – Semaphores


This is the first part in a series that we’re going to be doing on Java concurrency. Specifically, we are going to dive into the concurrency tools built into Java 1.5 and beyond. We’re going to assume you have a basic understanding of synchronization and volatile keywords. The first post will cover semaphores – specifically counting semaphores. Semaphores are an ...

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