//bad examples:

int ccount;//Nobody knows what a ccount is.

int i;//Generally bad unless use is trivial or temporary, such as loop variables.

int _count;//don't start variable names with underscore.

int data;//What kind of data?

int value1,value2;//Can be hard to differentiate between the two?

int x,y;//generally bad unless use is trivial, such as in trivial mathematical functions.

//good examples:

int customerCount;//clear what we're counting

int index;//okay if obvious what we're indexing

int totalScore;//good descriptive

int numberOfApples;//descriptive

int monstersKilled;//descriptive