Wednesday, October 17, 2018

Repetition and looping

Program Control: Repetition 








-Repetition is the repetition of one or more instruction(s) for a certain period of time.

-The number of repetition can be predefined or post defined.
-Repetition/looping operation: for, while, do-while.
-The format of a For instruction is: 
for(exp1; exp2; exp3){
statement1;
statement2;  
…….
 }
-The format of a While instruction is:
while(exp){
statement1;
statement2;
…..
}
-The format of a Do-While instruction is:
do{
< statements >;
} while(exp);
-In while operation, statement block of statements may never be executed at all if exp value is false


-In do-while on the other hand statement block of statements will be executed min once
-break:
ending loop (for, while and do-while)
end the switch operation
-continue:
  -skip all the rest of statements (subsequent to the skip statement) inside a repetition, and continue normally to the next loop

No comments:

Post a Comment