AtomicInteger

Back to Menu

If you need a shared counter in your application which would be accessed by multiple threads then you don't need to re-invent the wheel, AtomicInteger class of concurrent package can help you in that.

Example:

package com.meritmix.blog.java;
import java.util.concurrent.atomic.AtomicInteger;
/**
 * @author Ravi Yadav
 * This is copyright content of MeritMix.com
 * blog address is blog.meritmix.com 
 */
public class AtomicIntegerExample {
 public static void main(String[] args) {
  AtomicInteger counter = new AtomicInteger(0);
  for (int i = 0; i < 50; i++) {
   Runnable runnable = new WorkerThread(counter);
   Thread t = new Thread(runnable);
   t.start();
  }
 }
}
class WorkerThread implements Runnable {
 AtomicInteger count = null;
 WorkerThread(AtomicInteger counter) {
  this.count = counter;
 }
 public void run() {
  int value = this.count.incrementAndGet();
  System.out.println(value);
 }
}

Back to Menu