I will be bringing home a six week old boxer puppy soon and I already have a 1yr old cat. He is very active and aggressive how can I integrate them with out him hurting the puppy?:o

Try to kept them apart for a couple of days,and let them see each other for small times in those getting to know each other days.get the dogs scent on a towel or toy of the dogs and let the cat smell it put it were the cat lays.play and hold both of them at the same time so they won't get jealous of each other,and interact with them both togather.
Sometimes only time will help.sometimes they won't every get a long.
We train dogs for a living its always hard task that one.good luck and enjoy your new family members

I think your cat is going to tear the puppy up.