Challenge: Currency Converter Class with Accessors & Mutators

Objective: Create a CurrencyConverter class that converts an amount from a foreign currency to your local currency, using accessor and mutator methods.

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1. Class Properties (Instance Variables)

• currency: The name of the foreign currency (e.g., “USD”, “AUD”).
• rate: The conversion rate of that currency to your local currency (e.g., 1 USD = 70 INR).

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2. Class Methods

• __init__(self, currency, rate)
  • The constructor that takes the initial currency name and conversion rate.
  • Initializes the object’s properties with these values.
• Accessor Methods (Getters)
  • get_currency(self)
    • Returns the current currency name.
  • get_rate(self)
    • Returns the current conversion rate.
• Mutator Methods (Setters)
  • set_currency(self, new_currency)
    • Changes the currency name to new_currency.
  • set_rate(self, new_rate)
    • Changes the conversion rate to new_rate.
• Core Functionality Method
  • convert(self, amount)
    • Takes an amount in the foreign currency.
    • Formula: amount * rate
    • Returns the converted value in your local currency.

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3. Task Instructions

1. Write the CurrencyConverter class with the constructor, two getters, two setters, and the convert method.
2. Create an object of the class (e.g., for “USD” with a rate of 70).
3. Test the class by:
   • Using the convert method to convert an amount (e.g., 100 USD).
   • Using the setter methods to change the currency and rate (e.g., to “AUD” with a rate of 50).
   • Using the getter methods to check the new currency and rate.
   • Calling the convert method again with a new amount to verify the updated conversion works.

class CurrencyConverter:

    def __init__(self, name, rate):
        self.currency = name
        self.rate = rate

    def get_currency(self):
        return self.currency

    def get_rate(self):
        return self.rate

    def set_currency(self, name):
        self.currency = name

    def set_rate(self, rate):
        self.rate = rate

    def convert(self, amount):
        return self.currency + ' conversion is ' + str(self.rate * amount)


cc = CurrencyConverter('USD', 70)
print(cc.convert(100))

cc.set_currency('AUD')
cc.set_rate(50)

print(cc.convert(100))