Difference between “while” loop and “do while” loop

Question

What is the difference between while loop and do while loop. I used to think both are completely same.Then I came across following piece of code:

do {
                


        

Answer 1

The difference between a while constructs from Step 1 versus a do while is that any expressions within the do {} will be running at least once regardless of the condition within the while() clause.

println("\nStep 2: How to use do while loop in Scala")
var numberOfDonutsBaked = 0
do {
  numberOfDonutsBaked += 1
  println(s"Number of donuts baked = $numberOfDonutsBaked")
} while (numberOfDonutsBaked < 5)

Here is detail explaination: Explanation Visit: coderforevers