Question

Describe repetition structure. Identify 3 statements that we use in C# to add repetition to our programs.

Answer 1

`Hey,

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Pretest:

1. Loop condition appears at beginning of pretest loop
2. Determines number of times instructions w/in loop body are processed

Types of pretest loop:

1. while
2. for

Posttest:

1. Loop condition appears at end of posttest loop
2. Determines number of times instructions w/in loop body are processed
3. HOWEVER, instructions processed at least once--the first time!

Types of posttest loop:

1. do...while while

Counter-Controlled Repetition Requires

1. the name of a control variable (or loop counter)
2. the initial value of the control variable
3. the loop-continuation condition that tests for the final value of the control variable to determine when to exit
4. the control variable to be incremented (or decremented) each time through the loop

***ALL LOOPS: if loop body contains more than one statement, statements must be entered as a statement block--that is, in a set of braces {}.

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