I don’t want to iterate over the collection to simply ... As noted in the comments, Java arrays employ C-like zero-based indexes and so using an index of 0 obtains the first element.

you could declare the iterator class as a member of the resizable array collection class. This works because the two are closely related. In Java, nested classes are categorized as either static ...

Iterators in Java typically expect exclusive access to the data structure they loop through. If another thread tries to modify a collection of objects while an ...