Try {} catch{} is a common method used by many programming languages. In practice, you would use the method if you are trying to do something that (whether intentionally or not) has a chance to fail. What you're trying to do goes under try{} and what you want to happen if the try{} failed goes under catch{}. It looks something like Code: try{ [do something here that might not work] } catch{ [what to do if the thing you tried to do before didn't work] }