Applying methods
Methods are similar to the user-defined functions we create to perform various operations in a program, the difference being methods are defined inside a class and are governed by the rules of the class. Methods can be utilized only by calling them using an object instance created for that class. User-defined functions, on the other hand, are global and can be called freely anywhere within the program. A method can be as simple as printing a statement or can be a highly complex mathematical calculation that involves a large number of parameters.
Defining methods with simple print statements inside the Branch
class looks as follows:
class Branch:
def __init__(self, branch_id, branch_street,
branch_city, branch_state, branch_zip):
self.branch_id...