can someone explain what a do while statement is to me like im 5
Can anyone explain it to me? Thanks
5 Replies
The structure of a while loop is:
So it's as simple as you hit the 
is the same principle as above, except the
while loop and the condition gets evaluated. If it evaluates to true then the code inside the braces will be executed. Once it reaches the closing brace it will go back and evaluate the condition again, if it's true it goes back into the braces and executes the code inside again, if it's false it will jump past the while loop and carry on executing whatever code comes after it
Inside the loop you can also put a break or return statement, which will make code execution break out of the loop without the condition having to become false
sorry I just saw you said do-while is the same principle as above, except the condition is evaluated at the end of the loop, meaning that the code inside will always be executed at least once, even if the condition evaluates to falseWhat is the advantage of it over a for loop?
Well with a for loop you're generally going for a set number of iterations:
for (int i = 0; i < 10; i++)
Whereas a while loop you're simply going until the condition you've set is no longer true, and the criteria for that condition could be updated in any number of ways rather than simply incrementing a number on each loopWith a
while you can do something like
which will execute the loop as long as the random number it gets is less than 50
As soon as the number is 50 or 67 or 99, the loop will stop executingOn general, you use a for loop if you have a known number of iterations, and while when you do not
You can "build" your own for loop using a while