Cannot find symbol - method ConfirmAction (java.lang.String)

Winter_Walk wrote:

is that the correct syntax for the loop?

Yes. It can be shortened though:

if (!ConfirmAction(decision))

This is the same as saying "If ConfirmAction(decision) is NOT true".

Winter_Walk wrote:

is ConfirmAction a var or a command?

In this case, ConfirmAction is a method (command, as you say), which either returns true or false depending on the argument you pass to it.
You can't pass arguments (in this case "decision") to a variable.