Thread Shared Counter - Java Thread

Java examples for Thread:Thread

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Description

Thread Shared Counter

Demo Code



public class SharedCounter {
    private static int counter = 0;

    public static void main(String[] args) throws InterruptedException {
    long startTime = System.currentTimeMillis();
    SharedCounter sharedCounter1 = new SharedCounter();
    SharedCounter sharedCounter2 = new SharedCounter();

    Thread thread1 = new Thread(() -> sharedCounter1.increment());
    thread1.start();//  w  w w  .  j  av  a2 s  .  c o  m
    Thread thread2 = new Thread(() -> sharedCounter2.increment());
    thread2.start();

    thread1.join();
    thread2.join();

    long endTime = System.currentTimeMillis();
    System.out.println("Counter: " + counter);
    System.out.println("Total time taken(in millis): " + (endTime - startTime));
}

    public void increment() {
        for (int i = 0; i < 1000; i++) {
            synchronized (SharedCounter.class) {
                counter++;
            }
        }
    }
}

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