The default value which will appear to be stored at "empty" positions in the SparseArray
the ratio of concrete elements to the total virtual size of this SparseArray
(Changed in version 2.9.0) The behavior of scanRight
has changed. The previous behavior can be reproduced with scanRight.reverse.
An integer-indexed sparse array implementation, currently based on HashMap. Specialized for storing Ints, Longs and Doubles Automatically materializes into a dense array when the number of non-default values stored exceeds some threshold. Probably not thread-safe due to lack of locking on materialization. TODO: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/locks/ReadWriteLock.html
the type of value being stored in the SparseArray