The above class runs through several popular Map implementations (EnumMap, HashMap, LinkedHashMap, TreeMap, Hashtable, WeakHashMap, ConcurrentHashMap) and prints out whether each Map ...

HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...

Listing 1. Implementation of type facet and type decorator. package Type_Extension; public class ExtensibleObject { public String objName = null; public java.util.Hashtable decorator = null; public ...