Java Concurrent Map Example

This implementation assumes that the concurrentmap cannot contain null values and get () returning null unambiguously means the key is absent. We use the same example map for demonstrating purposes but this time we work upon the concrete implementation concurrenthashmap instead of the interface concurrentmap, so we can access all public methods from this class: A java.util.concurrent.concurrentmap interface is a subinterface of map interface, supports atomic operations on underlying map variable.

A java.util.concurrent.concurrentmap interface is a subinterface of map interface, supports atomic operations on underlying map variable. A new empty map is created with the specified initial internal sizing. Even though hashtable is thread safe, it is not very efficient.

By default, the capacity of the map will be 16 the load factor will be 0.75

It updates the value with new computed value corresponding to specified key. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 The writer thread randomly modifies the map (put and remove). The value returned is an estimated value;