What am I going to expect and what happens next if I was charged with Hit and Run?

I was late for work and parking at the mall. I hit someone trying to squeeze in and I backed out and parked somewhere else since I'm a part time college student. During work I got called to security where they told me I hit someone’s car. The police walked me to my car and asked me questions what happened. I told them I didn't know I hit them and parked somewhere else because it was too tight. My car has a light scratch where the other car was hit before in different spots. But because I left no note I am charged for all of it. The police told me I am being charged with a Hit and Run and have to appear in court.