The Java Iterator is an all-purpose interface that simplifies ... the numeric index of the previous or next element in an ordered collection. The Java Collections Framework provides a wealth of ...

For example, “How do you perform an operation across a collection of different objects?” One approach is to iterate through ... Luckily, Java lets you make the Visitor pattern much more ...

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 ...