Occasionally one wishes to change the bank number or, less often, the bank name. Two methods, set_bank_number() and set_bank_name() are provided to accomplish this. Changing the bank name, however, can lead to serious problems if used unwisely. One can think of this method as being something like a C-style typecast. It is supported, but hardly ever needed except by experts attempting to optimize some procedure. In general, a novice programmer may freely use set_bank_number(), but not use set_bank_name().