Repetition Statements (Looping)

• A control structure that allows the computer to execute one or more statements multiple times
• Pre-test loops execute zero or more times; the loop may never execute
• Post-test loops execute one or more times; the loop will always execute at least once
• Fixed repetition (count controlled) loops versus variable condition (event controlled) loops
• Each repetition is called an iteration
• The for loop is common; it is a pre-test loop

	for < a specific number of times> <perform an action>

• The while loop is also common; it is a pre-test loop

	while <some condition is true> <perform an action>

• The do . . . while loop is less common; it is a post-test loop

	do <perform an action> while <some condition is true>