SortedMap in Java is an interface that is a subinterface of Map interface. The entries in the map are maintained in sorted ascending order based on their keys. In simple words, it guarantees that the entries are maintained in ascending…
Properties in Java is a class that is a child class (subclass) of Hashtable. It is mainly used to maintain the list of values in which key and value pairs are represented in the form of strings. In other words,…
Hashtable class in Java is a concrete implementation of abstract Dictionary class. It is a data structure similar to Java HashMap that can store a collection of elements (objects) in the form of key-value pairs (entries). Key objects must implement…
EnumMap in Java is a concrete class that provides Map implementation whose keys are of the enum type. All the keys in the EnumMap must originate from a single enum type that is specified, implicitly or explicitly, when the map…
IdentityHashMap in Java is a concrete class that is similar to HashMap except that it uses reference equality (==) when comparing entries (keys and values). In simple words, Java IdentityHashMap uses reference equality (==) instead of object equality (equals() method)…
