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 ...

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 ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Have you inadvertently run into Java’s ...

Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...