What happends when you steal and you got caught the amount is 519 and this is the first offense there is no criminal history what will happened at the first day of court??

Well since it is your first offense, you'll get something like probation for 6 months and pay restitution. You'll likely have a criminal record afterwards.

Your first day of court at least here is the day after you are arrested, where you are formally charged ( the charges are read) and bail is set. If you waived those rights to a first appearance and are out on bail, What happens next, you will plead, if not guilty a trial date will be set.