merge()

Java ConcurrentHashMap clear() Method The clear() method of Constructor class removes all of the mappings from this map. Syntax public void clear()…

Java ConcurrentHashMap mappingCount() Method The mappingCount() method of ConcurrentHashMap class returns the number of mappings. The value returned is an estimated value;…

Java ConcurrentHashMap compute() Method The compute() method of ConcurrentHashMap class is used to compute the mapping for the specified key and its…

Java ConcurrentHashMap merge() Method The merge() method of ConcurrentHashMap class merge sets If the specified key is not already associated with a…

Java ConcurrentHashMap computeIfAbsent() Method The computeIfAbsent() method of ConcurrentHashMap class computes its value using the given mapping function and enters it into…

Java ConcurrentHashMap newKeySet() Method The newKeySet() method of ConcurrentHashMap class Creates a new set backed by a ConcurrentHashMap from the given type…

Java ConcurrentHashMap computeIfPresent() Method The computeIfPresent() method of ConcurrentHashMap class computes a new mapping given the key and its current mapped value…

Java ConcurrentHashMap put() Method The put() method of ConcurrentHashMap class maps the specified key to the specified value in this table. Syntax…

Java ConcurrentHashMap contains() Method The contains() method of ConcurrentHashMap class tests if some key maps into the specified value in this table.…

Java ConcurrentHashMap putAll() Method The putAll() method of ConcurrentHashMap class copies all of the mappings from the specified map to this one.…