Question

differentiate between while() loop and do while () loop

Answer 1

A while loop is a control flow statement that allows code to be executed repeatedly based on any given condition
and
Do..... while is used to execute a set of statements once and then repeat the statement only if the given condition is true

Answer 2

Explanation:

• Both types of loops repeat a block of statements until some condition becomes false.

• The main difference is that in a while loop, the test-condition is tested at the beginning of the loop, and in a do-while loop, the test-condition is tested at the end of the loop.

• It is possible that the body of a while loop might not be executed at all.

• However, The body of a do-while loop is executed at least once since the test-condition for ending the loop is not tested until the body of the loop as been executed.

• While loop is an entry-controlled loop.

• The do-while loop is an exit-controlled loop.