First, hasNext() should not call next(). The standard contract for hasNext() is that it can be called any number of times without changing the iterator, while the standard contract for next() is ...

Fail-safe vs. fail-fast Java iterators. If the goal is to avoid exceptions, system resources are in plentiful supply, and updates to the underlying collection class while the iterator runs will not ...

Java Iterator vs. Enumeration methods. Another reason why developers most often choose the Iterator is its ease of use and its shorter method names. For reference, the two key methods of the ...

Have you ever wondered why the java.util.Collections class includes various “empty” class methods, which return immutable empty collections and immutable empty iterators?This post answers this ...

Take advantage of the iterator pattern to traverse aggregate objects without having to expose their underlying data structures Topics Spotlight: New Thinking about Cloud Computing ...