If you rent a room in Houston, TX can you change locks and not

[Tom Smith]

If you rent a room in Houston, TX can you change locks and not give the landlord the key? I am planning on renting in Houston, TX first before I buy a rental property. I am wondering what the laws are on tenants changing locks in Houston, TX. I want to be able to change the lock and not have anyone have the key by myself. The landlord should accept that for a room rental right? 

Also, will renting a room almost always be a sublease or a lease? I am assuming it will probably be a sublease. 

Thanks.