In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.

What is while and do while?

The general syntax of the do - while is: do { statement(s) } while (expression); Instead of evaluating the expression at the top of the loop, do - while evaluates the expression at the bottom. Thus, the statements within the block associated with a do - while are executed at least once.

What is do while in C language?

A do while loop is similar to while loop with one exception that it executes the statements inside the body of do-while before checking the condition. On the other hand in the while loop, first the condition is checked and then the statements in while loop are executed.