San Jose State University. 5,323 of the 26,664 undergrads at San Jose State University take classes part-time. The per-credit-hour charge for part-time undergraduate students at San Jose State University in 2014 - 2015 was $372. Typically, college classes consist of 3 or 4 credits, bringing the cost per class to $1,116 or $1,488. At many colleges, full-time tuition kicks in at around 12 credit hours. You should compare part-time costs to full-time tuition and confirm with San Jose State University how many credit hours they use to differentiate between a full-time and part-time student.