touch up my L4 lecture PPT to make it more student friendly

This lecture explores Object-Oriented Programming (OOP) fundamentals, emphasizing key principles like abstraction, encapsulation, and inheritance. Core concepts include simplifying complexity, protecting data, and enhancing flexibility through overloading and overriding. Real-world examples such as DictReader and industry use cases highlight practical applications in software development. The session concludes with strategies to integrate OOP for improved usability, extensibility, and design...