Graphics System Quiz

Problem Statement

Publish (to GitHub) the method/function "drawAll" that will draw a collection of graphic elements.

Our High Level Algorithm

Nice and simple

drawAll(elements) {
	Iterate over collection of graphic elements {
		draw each element
	}
}

Bump in the Road

A little challenge has come up.

We find out that the parameter "elements" could be many different collection types (unlimited).

SortedCollection
OrderedCollection
LinkedList
SuperFastCollection
DynamicArray
etc (unlimited)

A Solution for Each

A solution (code) for each collection type

drawAll(sortedElements)
drawAll(orderedElements)
drawAll(linkedElements)
drawAll(superFastElements)
etc

Do We Need Solution for Each Collection Type?

No. And remember the types are unlimited.

Let's think about context again.

If a collection can iterate, our algorithm is happy.

So we generalize to a common type Collection (or List, etc), which can iterate.