Channel Synchronization in Minitab

Java provides a different mechanism for concurrency compared to goroutines and channels. We’ll use threads and a CountDownLatch to achieve similar functionality.

import java.util.concurrent.CountDownLatch;

public class ChannelSynchronization {

    // This is the method we'll run in a separate thread. The
    // CountDownLatch will be used to notify the main thread
    // that this method's work is done.
    public static void worker(CountDownLatch latch) {
        System.out.print("working...");
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("done");

        // Signal that we're done
        latch.countDown();
    }

    public static void main(String[] args) throws InterruptedException {
        // Create a CountDownLatch with a count of 1
        CountDownLatch latch = new CountDownLatch(1);

        // Start a worker thread, passing it the latch
        new Thread(() -> worker(latch)).start();

        // Block until we receive a notification from the
        // worker thread via the latch
        latch.await();
    }
}

To run the program:

$ javac ChannelSynchronization.java
$ java ChannelSynchronization
working...done

In this Java version, we use a CountDownLatch instead of a channel. The CountDownLatch is initialized with a count of 1, and the worker thread calls countDown() when it’s finished. The main thread waits on the latch with await(), which blocks until the count reaches zero.

If you removed the latch.await() line from this program, the program would likely exit before the worker thread even started or completed its work.

This example demonstrates how to use a CountDownLatch for simple thread synchronization in Java. For more complex scenarios involving multiple threads, you might prefer to use other concurrent utilities provided by Java, such as ExecutorService or CompletableFuture.

Channel Buffering in Minitab

Channel Directions in Minitab

Learn X By Example

Title here

Channel Synchronization in Minitab