Quadtrees and Octrees
If you do any advanced work in graphics, sooner or later you will meet the Quadtree or its 3D relation the Octree. For this reason alone they are worth knowing about, but they are also something you should have in your armory of data structures.
Android Adventures - Resources
So far we have overlooked resources, but the subject can be ignored no longer. Resources serve too important a purpose in Android. They not only make localization easier, they are key to creating apps that adapt to the device they are being run on.
Custom Attributes In C#
The role of custom attributes in C# can be confusing. They are easy to use when supplied, but how do you go about creating custom attributes? And when are they useful?