data structures using printf("\ % is vowel"ch)breakcase ' 'case ' 'printf("\ % is vowel"ch)breakcase ' 'case ' 'printf("\ % is vowel"ch)breakdefaultprintf("\ % is not vowel"ch)return output enter any character is not vowel note that there is no break statement after case aso if the character is entered then control will execute the statements given in case iterative statements iterative statements are used to repeat the execution of sequence of statements until the specified expression becomes false supports three types of iterative statements also known as looping statements they are while loop do-while loop for loop in this sectionwe will discuss all these statements while loop the while loop provides mechanism to repeat one or more statements while particular condition is true figure shows the syntax and general form of while loop statement syntax of while loop statement xwhile (conditionstatement blockstatement yupdate the condition expression condition true statement block false statement figure while loop construct