Wk06_do_while - Programming I do-while loop Narendra...

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Programming I do-while loop Narendra Pershad Winter 2017
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Control Structures Sequence Conditional Looping Method
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Looping/Iteration/Repetition Provides the structure to process a statement of a block of statement zero or more times Avoids re-writing the same code /logic Enables the construction of some programs that would otherwise be logistically impossible e.g. summing the number less than one million
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Code statements Loop header Loop body Loop footer Optional Optional Entry into the loop statement Exit from the loop statement Logic here may cause the loop body to be ignored Logic here may cause the loop body not to be re- entered Logic here may cause the loop body to be terminated (not recommended)
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Code statements Loop header Loop footer
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Code statements Loop footer
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Syntax code statements to prepare for the loop //initializer do { code statements code statements //update condition for the checker } while («boolean expression»); //checker
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A silly example int counter = 0; //initializer do { counter = counter + 1; //updater } while (counter < 5); //checker
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Real example int counter = 0; do { Console .WriteLine( "Hello" ); counter = counter + 1; } while (counter < 5);
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