Here, the main difference between a while loop and do while loop is that while loop check condition before iteration of the loop. On the other hand, the do-while loop verifies the condition after the execution of the statements inside the loop. ... Conversely, the do while loop is called the exit controlled loop.

What is difference between while loop and do-while loop?

The difference lies in the place where the condition is tested. The while loop tests the condition before executing any of the statements within the while loop whereas the do-while loop tests the condition after the statements have been executed within the loop.

Why do-while loops are bad?

The principal complaint about while loops is that they may never end: while (true) { ... } This is the infinite loop. If it ever happens that you construct an infinite loop in code, that code will become non-responsive at run time.