To enhance the integrity of an object and minimize accidental modifications, it is essential to pass all required attributes upfront during object creation.
By using a constructor to initialize all necessary parameters and making the fields final, we ensure immutability and eliminate the need for setter methods.
This approach not only maintains the security of sensitive information but also simplifies the code structure, making it easier to understand and maintain.
The redesigned CreditCard class demonstrates how to effectively encapsulate data while preventing unnecessary mutation, fostering a robust design pattern.
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