CSC300: Interfaces [5/6]

Some language features use special interfaces, such as Iterable.

An Iterator is a design pattern.

• You will learn about design patterns when you take a Software Engineering course (SE350 or SE450).

• For now: an Iterator allows you go through the elements of a data structure without imposing on the data sturcture itself.

• The idea here is that when we go through the elements of a data structure, the index pointing to where we are at in the data structure should not be stored in the structure.

• Java's Iterable is an interface that gives you access to an Iterator.