The only guide you’ll need on concurrency & multithreading for senior engineers. Pressure test your skills with real-world practice problems from top companies.

Concurrency in Java is one of the most complex and advanced topics brought up during senior engineering interviews. Knowledge of concurrency and multithreading can put interviewees at a considerable advantage. This course lays the foundations of advanced concurrency and multithreading and explains concepts such as Monitors and Deferred Callbacks in depth. It also builds simple and complete solutions to popular concurrency problems that can be asked about in interviews like the Reader-Writer Problem and the Dining Philosopher Problem. While prior knowledge of concurrency is not required to follow through with this course, familiarity with the very basics of concurrency would be helpful.

Java Multithreading for Senior Engineering Interviews


# Interrupted Exception

<p>You'll often come across this exception being thrown from functions. When a thread wait()-s or sleep()-s then one way for it to give up waiting/sleeping is to be interrupted. If a thread is interrupted while waiting/sleeping, it'll wake up and immediately throw Interrupted exception.</p>
<p>The thread class exposes the <code>interrupt()</code> method which can be used to interrupt a thread that is blocked in a <code>sleep()</code> or <code>wait()</code> call. Note that invoking the interrupt method only sets a flag that is polled periodically by sleep or wait to know the current thread has been interrupted and an interrupted exception should be thrown.</p>
<p>Below is an example, where a thread is initially made to sleep for an hour but then interrupted by the main thread.</p>
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The Basics

Multithreading in Java

Java's Memory Model

Interview Practice Problems

Bonus Questions

Beyond the Interview

Java Concurrency Reference

Revision & Quizzes

Interrupting Threads

Interrupted Exception