Answer by Ryan Delucchi for In detail, how does the 'for each' loop work in Java?

The Java "for-each" loop construct will allow iteration over two types of objects:

• T[](arrays of any type)
• java.lang.Iterable<T>

The Iterable<T> interface has only one method: Iterator<T> iterator(). This works on objects of type Collection<T> because the Collection<T> interface extends Iterable<T>.