[sagichmal]

There is one way to iterate over things, for any kind of elementwise processing: a `for` loop.

There is one way to format your code ;)

[tsimionescu]

There are still two ways: the C-style for loop and its variants (for initializer; condition; increment) and the range for loop with its variants (iterate by key, by value, or both). There's also the option of writing a recrusive function.

Still less than Java's five (do-while, while, C-style for, range for, recursion), to be fair.