# Chapter12.py

# Dictionary Entries
# Sets of key: value pairds
# key name can not duplicate
# value can be a duplicate
# the key name has to be a string 'key'
# the value can be any type
# Like lists, you should create an empty dictionary before adding entries

# create an empty dictionary
contacts = {} # { {f:v,l:v,a:v} , {f:v,l:v,a:v} }

contact = {} # {f:v,l:v,a:v}

firstName = 'Bob'  # input()
lastName = 'Smith' 
age = 45 # int

# create a new contact entry
contact = {
    'firstName': firstName,
    'lastName': lastName, 
    'age': age
} # contact{}

contacts.update(contact)
print(f"Individual contact: {contact}")
print("----")
print(f"Set of contacts: {contacts}")

#######

firstName = 'Jane'  # input()
lastName = 'Doe' 
age = 45 # int

# create a new contact entry
contact = {
    'firstName': firstName,
    'lastName': lastName, 
    'age': age
} # contact{}

contacts.update(contact)
print(f"Individual contact: {contact}")
print("----")
print(f"Set of contacts: {contacts}")


# read the individual keys
# loop thru all the key and value
for k,v in contact.items():
    print(f"Key: {k}, Value: {v}")
    print(f"{k} -> {v}")