How to Increment Integers

The following example increments integers from 1-1000000 via LongAdder:

public class AtomicAdder implements Runnable {

    public static LongAdder count = new LongAdder();
    
    @Override
    public void run() {
        count.add(1);
    }

    public long getCount() {
        return count.sum();
    }        
}