Concurrency, Multithreading, Java, Programming, Software Development.
ConcurrentHashMap<KeyType, ValueType> map = new ConcurrentHashMap<>(); // Adding and Updating Elements map.put(key1, value1); map.put(key2, value2); // Retrieving Elements ValueType value = map.get(key); // Removing Elements ValueType removedValue = map.remove(key); // Iterating over Elements for