How do you change the front wheel studs on a 2000 Honda Accord. I took off the brake rotor do I have to take the whole knockle off and press out the hub or can it be done in place?

The easiest way to replace the stud without taking out the hub, is to shave a part of the stud head so it fits in the cramped area, and first cut off the old stud for easy removal. But the right way is to remove the hub with either a machine press or axle remover, which you can borrow from an autoparts store. Just be very careful not to bang the the hub much which can damage the inernal bearings.