# Contact.py

class ExampleClass: # not using attributes
    # uses variables
    fname = 'Bob'
    lname = 'Smith'

    fullname = f"{fname} {lname}" # template variables
    # fullname = fname + ' ' + lname   ## join
    # fullname = fname, lname ## parameterization

    print(fullname) 

# Classes page 53-55
# Isolation of code for access control and reusability
# creating Classes using attributes of the class rather than variables in the class

class Contact: # self -> 3 attrs
    # define attributes INSTEAD of variables
    # built-in core method <print(),input(), int()> for defining attributes  __init__()
    # function and method are the same, but they return to something else
    ## functions return value to itself
    ## methods return value to something else

    def __init__(self, fname, lname, age):  # Python Core 
        # prop = paramater passed to __init__()
        self.fname = fname
        self.lname = lname
        self.age = age

    # __str__() method page 56  Python Core
    def __str__(self):
        return f"Contact Information >>> Name: {self.fname} {self.lname} Age: {self.age}."


# My Program
print("Welcome to my program")
print("---------------------")

## Create an INSTANCE of the class object in the program
contact1 = Contact('Bob', 'Smith', 21) # contact1 is the name of the INSTANCE of the class object in memory
print(contact1)