The 'n' prefix

IDNAMING-25
TitleThe prefix n should be used for variables that represent a number of things.
PriorityStrongly recommended
Severity level8
DescriptionThe prefix n should be used for variables that represent a number of things. Do not use the prefix for other purposes and do not use other prefixes for representing the number of things.
RationaleVariables starting with this prefix can easily be identified.

Avoid:

numberOfFiles
nrCars
lineCount

Instead use:

nFiles
nCars
nLines