Some offenses are mandatory appearances before the judge. The judge will ask you to enter a plea. If you plead guilty, the judge will sentence you. You must explain to the judge why you are guilty. A guilty plea will not be accepted by the judge if your explanations do not support the guilty plea.
If you plead not guilty your case will be set for trial. The judge will advise you of your hearing dates. Non-Jury and jury trials are set about 4 months from your appearance. A no-contest plea can only be entered with the approval of the prosecution and the judge.