what kind of class?...Drug classes? Depends what you were on probation for and how serious it was: How long you've been on probation: how much time you have total to do. Your probation officer will give a recommendation on what he thinks should happen. Ultimately you will have to go back to the judge. In all likelyhood, the judge will simply give you more classes to finish. I just saw a study done on CNN yesterday that for every 138 people, there is 1 in prison. That is saying something when you consider that women are included in that study and there aren't nearly as many women in prison. My point is that prisons are more overcrowded than ever. There are over 2 million people in prison. Talk to your probation officer and do you classes. By the way, what is the reason that you missed one of your classes?