Question

For all problems you must:

1. Write a Python (.py) program
2. Test, debug, and execute the Python program
3. Submit a copy of your commented source code on-line

1. (11 pts.) Create a Person class that contains the following members: name, email, and phone_number Provide a constuctor that initializes all three members with data passed to the constructor. Add a __str__ method that returns a string printing the data members. Provide methods that allows you to get and set all three data members. Demonstrate the correctness of your program with a couple sample test cases.
   
2. (11 pts.) Create an Account class that contains the following members: Person, account_number and balance where composition is used for the Person data member. Provide a constuctor that initializes all three members with the data passed to the constructor. Provide a method that allows you to get the account_number and methods that allow you to get and set the Person and balance data members. Additionally, for this class any attempt in a method or constructor to set a negative balance should result in the balance being set to 0. (Note: You must use composition for the Person data member). Demonstrate the correctness of your program with a couple sample test cases.
   
3. (11 pts.) Create a Savings_Account class that is a derived class of the Account class. Add a minimum_balance data member and deposit and withdrawl methods. The class should contain a constructor method that utilize the Account constructor but also ensures that no object is created if the provided balance is less than the provided minimum_balance. A __str__ method that displays all data members should also be provided. Additionally, any call to the withdrawl method should fail if the balance would drop below the minimum_balance. Demonstrate the correctness of your program with a couple sample test cases.
   
4. (11 pts.) Create a Loan_Account class that is a derived class of the Account class. Add a maximum_balance data member and deposit and withdrawl methods. The class should contain a constructor method that utilize the Account constructor but also ensures that no object is created if the provided balance is greater than the provided maximum_balance. A __str__ method that displays all data members should also be provided. Additionally, any call to the withdrawl method should fail if the balance would exceed the maximum_balance and any call to deposit should fail if he balance would drop below 0. Demonstrate the correctness of your program with acouple sample test cases.

Answer 1

I have implemented the classes but i ran out of time to write the test cases for them.

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class Person():
    def __init__(self, n, e, p):
        self.name = n
        self.email = e
        self.phone = p

    def __str__(self):
        return self.name + ' ' + self.email + ' ' + str(self.phone)

    def get_name(self):
        return self.name
    def set_name(self,n):
        self.name=n

    def get_phone(self):
        return self.phone
    def set_phone(self,p):
        self.phone=p

    def get_email(self):
        return self.email
    def set_name(self,e):
        self.email=e

jon = Person('John','John@coursera.com','456-789-1233')
print(jon)
jon.set_phone('457-888-9999')
print(jon)

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class Account():

    def __init__(self,person,num,bal):
        self.person=person
        self.account_number=num
        self.balance=bal
        if self.balance<0:
            self.balance=0

    def get_Person(self):
        return self.person
    def set_Person(self,p):
        self.person=p
    def get_AccountNumber(self):
        return self.account_number
    def set_AccountNumber(self,num):
        self.account_number=num
    def get_balance(self):
        return self.balance
    def set_balance(self,bal):
        if bal>0:
            self.balance=bal

class Savings_Account(Account):
    def __init__(self,person,num,bal,min_bal):
        super().__init__(person,num,bal)
        self.minimum_balance=min_bal

    def deposit(self,amount):
        if amount>0:
            self.balance+=amount

    def withdrawl(self,amount):
        if 0<amount and amount<=self.balance:
            self.balance-=amount

    def __str__(self):
        return self.person+" Account number: "+str(self.account_number)+\
            ", Balance: $"+str(self.balance)

class Loan_Account(Account):
    def __init__(self,person,num,bal,max_balance):
        super().__init__(person, num, bal)
        self.max_balance = max_balance

    def withdrawl(self, amount):
        if 0 < amount and amount <= self.balance:
            self.balance -= amount

    def __str__(self):
        return self.person + " Account number: " + str(self.account_number) + \
               ", Balance: $" + str(self.balance)

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