concurrent/atomic/LongAdder.java

59  * add a count to a {@code ConcurrentHashMap<String,LongAdder> freqs},
61  * freqs.computeIfAbsent(key, k -> new LongAdder()).increment();}
71 public class LongAdder extends Striped64 implements Serializable {
77     public LongAdder() {
227         SerializationProxy(LongAdder a) {
232          * Returns a {@code LongAdder} object with initial state
235          * @return a {@code LongAdder} object with initial state
239             LongAdder a = new LongAdder();
247      * <a href="../../../../serialized-form.html#java.util.concurrent.atomic.LongAdder.SerializationProxy">