cast<RK, RV> method

Map<RK, RV> cast <RK, RV>()

Provides a view of this map as having RK keys and RV instances, if necessary.

If this set contains only keys of type RK and values of type RV, all read operations will work correctly. If any operation exposes a non-RK key or non-RV value, the operation will throw instead.

Entries added to the map must be valid for both a Map<K, V> and a Map<RK, RV>.

Implementation 

Map<RK, RV> cast<RK, RV>();