CHAPTER 5: Looping

loop control variable

is a variable that determines whether a loop will continue.

definite loop

is one for which the number of repetitions is a predetermined value.

counted loop

is a loop whose repetitions are managed by a counter.

Incrementing

a variable is adding a constant value to it, frequently 1.

Decrementing

a variable is decreasing it by a constant value, frequently 1.

counter

is any numeric variable you use to count the number of times an event has occurred

indefinite loop

is one for which you cannot predetermine the number of executions

Nested loops

occur when a loop structure exists within another loop structure.

Defensive programming

is a technique with which you try to prepare for all possible errors before they occur

garbage in, garbage out

GIGO means that if your input is incorrect, your output is worthless.

Forcing

a data item means you override incorrect data by setting it to a specific value.