Explore multithreading and concurrency concepts in Java, from the basics on upward.

Java for Programmers

Java Multithreading


## 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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# 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>
    </div>
</div>

The Basics

Multithreading in Java

Java Memory Model

Java Thread Basics

Interrupting Threads

Interrupted Exception