All letter to lowercase

So I want to convert a users arguments into lowercase. Is there function in Java that does this?

Example:
A player has the the username: UserPluERf56789

That can be very hard to remember. So when an admin types /lastOn userpluERF56789

it still works because everything is changed to lowercase anyway.

How do I do this?

ConvertToLower(args[0]); ???

 

Use .equalsIgnoreCase which does exactly what it sounds like.

 

args[0].toLowerCase();
but what nashor said is better.

 

I'm not doing commands.....I know how to ignore the case, I want to convert the usernames I save into my config to lowercase.

Thanks for this it does exactly what I needed!

 

Did you even try