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 ...

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 ...

The fundamental difference between the Java Iterator and ListIterator is the ListIterator 's ability to manipulate an ordered list.. Let's compare the Java Iterator vs. ListIterator interfaces and ...

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 ...

Should I be using one over the other? I deal with the Vector class a lot, and I was just wondering, is it more efficient to use Enumerations and e.nextElement() to loop through all of the elements ...