Java/Iterators

See Iterators vs Iterable

Iterators

• Iterators are simple wrapper classes around references to locations in a container.
• The Iterator class works a bit like a scanner, with methods to check if there is a next token, get the next token, and remove the last token returned.

Iterable

• Iterable is the generic approach for getting some kind of iterator that will operate on this collection.
• Implementing Iterable is what enables the use of for each syntax.

See also:

• Template:DataStructuresFlag
• Template:AlgorithmsFlag