You are developing a financial application with various account types. How would you design the classes to achieve this and allow future modifications?
- Singleton Pattern
- Composition
- Prototype Pattern
- Inheritance and Polymorphism
Using inheritance, a base class 'Account' can be created with methods like 'withdraw', 'deposit', and 'calculateInterest'. Derived classes like 'SavingsAccount', 'CurrentAccount', etc., can then override these methods to provide specific implementations. Polymorphism ensures these methods are called appropriately.
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