What are the differences between ArrayList and ArrayMap ?

The main differences between ArrayList and ArrayMap are:

• ArrayList is a resizable-array implementation of the List interface that stores a sequence of elements, while ArrayMap is a generic key-value mapping data structure that stores key-value pairs[1][2].

• ArrayList maintains the insertion order of elements, while ArrayMap does not guarantee any specific order[1].

• ArrayMap is designed to be more memory efficient than a traditional HashMap by keeping its mappings in an integer array of hash codes and an Object array of key-value pairs, avoiding the need for extra objects[2][4].

• ArrayMap is generally slower than HashMap for lookups, adds and removes since it requires binary searches and inserting/deleting entries in the array. However, for small collections under a few hundred items, the performance differen...