Base classes and general utility classes. These include the abstract base classes for the several varieties of type-specific collection classes.

{@link com.sosnoski.util.GrowableBase} provides the basic implementation of a collection which uses a growable array, with call out methods (abstract methods used by the base class but defined by the subclass) for handling the particular needs of each such type of collection. The array, queue, and stack collection classes are all derived from this class.

{@link com.sosnoski.util.PrimitiveHashBase} and {@link com.sosnoski.util.ObjectHashBase} provide the basic implementation of hash-based collection. These also use call out methods for handling the particular needs of each such type of collection. The hash map and hash set collection classes are derived from this pair of classes.

{@link com.sosnoski.util.ArrayRangeIterator}, {@link com.sosnoski.util.WrappedArrayIterator} and {@link com.sosnoski.util.SparseArrayIterator} provide java.util.Iterator implementations for array-based collections. They're used by the collections classes to return iterators for object collections, but can also be used directly by applications.

{@link com.sosnoski.util.CharBuffer} supports working with character sequences (including arrays and Strings) as a lightweight StringBuffer workalike. It extends the {@link com.sosnoski.util.array.CharArray} growable character array implementation with added support for append/insert/replace operations on the character sequence, along with comparing various types of character sequences and computing format-independent hash codes for character sequences.