What exactly are those pesky InterruptedExceptions? In this video I show you how to interrupt running threads in Java using the built-in thread interruption mechanism.

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Code For This Tutorial

Starting.
Interrupted!
Finished.

import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

public class App {

	public static void main(String[] args) throws InterruptedException {

		System.out.println("Starting.");

		ExecutorService exec = Executors.newCachedThreadPool();

		Future<?> fu = exec.submit(new Callable&lt>Void>() {

			@Override
			public Void call() throws Exception {
				Random ran = new Random();

				for (int i = 0; i < 1E8; i++) {

					if (Thread.currentThread().isInterrupted()) {
						System.out.println("Interrupted!");
						break;
					}

					Math.sin(ran.nextDouble());
				}
				return null;
			}

		});
		
		exec.shutdown();
		
		
		Thread.sleep(500);
		
		exec.shutdownNow();
		//fu.cancel(true);
		
		exec.awaitTermination(1, TimeUnit.DAYS);
		
		System.out.println("Finished.");
	}

}

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