syskin345

Add ensureCapacity() to mutable HashSets and HashMaps

2

Initial capacity can be set when creating a new map or set, and for good reason. But sometimes the required capacity is only known later. Proposal: add a method ensureCapacity,...

Hashing-free constructor copy of HashMaps

2

When creating a new HashMap from existing HashMap, the existing implementation is pretty generic: allocates the HashMap of the right capacity and loops over the input to put all entries....