Although iterators in Java have taken different forms, using an active iterator was essentially the only viable option prior to Java 8.

If a node in a trie contains the terminating symbol, the path from the root to this node is the entire string.<BR><BR>However, if you don't want that behavior, then an iterator means writing an ...

This additional magic simplifies behavior dispatching, as the behavior iterator skips any behavior in the chain that does not implement the named interface.