[๖ۣۜXilluX]

The expression gets checked on the while loop first and then the code will executed. On the do while the code gets executed before the expression gets checked.

[newform12]

while(under_condition)
{
do stuff
}

//
do
{
do_this_atleast_once_before_while_loop_starts
} while (under_condition)

[newform12]

You basically just add one more expression before your while loop.

while(condition)
{
expression
}