Do { .. } while(..) or while () { .. } ??

Question

Hello,
I think the only one difference between :
do {
} while (...);and
while(..) { .. } In do while: the body wil be excuted at least once but that is not the case in while ..!! Is this true?
In which cases (situations or problems) you should choose for do {}while() ?
Thank you

Answer 1

Rkas wrote:
jverd wrote:
Rkas wrote:
I read:
The difference between do-while and while is that do-while evaluates its expression at the bottom of the loop instead of the top. Therefore, the statements within the do block are always executed at least once, as shown in the following DoWhileDemo program:
That is what I said too!So, your initial question was to ask "Here is what the tutorial says. Is it right"?hahaha, no, that's not the question !! :-D
Look, I am looking for some example (not theory) for using do while! practice examples. :)
Thanksdo
System.out.println("press 1 to widraw money");
System.out.println("press 2 to check balance");
System.out.println("press 5 to exit");
System.out.println("select your option");
//get input and call function accordingly
}while(option!=5)
you can think about it as ATM screen
It is necessary to show you the screen at least one time
even if you want to exit in the first attempt itself.