Computing with Data

elgeish

584.6K views

GitHub

Open Source Your Knowledge, Become a Contributor

Technology knowledge has to be shared and made accessible for free. Join the movement.

Create Content

Previous: Volatility - Part II Next: Ineffectual Synchronization - Part I

Synchronization

Here's the new code snippet with a single keyword addition, synchronized, to fix the race condition:

class Task implements Runnable {
  static int sum = 0;
  synchronized public void run() { ++sum; }
}
public class Main {
  public static void main(String args[]) throws Exception {
    Task task = new Task();
    for (int i = 0; i < 10000; i++) {
      new Thread(task).start();
    }
    Thread.sleep(1000); // ad-hoc wait till threads finish
    System.out.println("sum: " + Task.sum);
  }
}

Open Source Your Knowledge: become a Contributor and help others learn. Create New Content

Open Source Your Knowledge, Become a Contributor

228/300 Synchronization

Synchronization

Python from Zero to Hero

Learn Python with 'de Developer'

Recueil d'exercices pour apprendre Python au lycée

Beginner Python Concepts