def borrow(self): if self.status == "available": self.status = "borrowed" print(f"Book 'self.title' borrowed.") else: print(f"Book 'self.title' is not available.")
Protecting the internal state of an object and only exposing what is necessary. def borrow(self): if self
Buy directly from Pearson or O'Reilly Media. : The ability of different objects to respond
: Detailed explanations of Encapsulation (hiding data), Inheritance (reusing class definitions), Polymorphism (responding to the same message in different ways), and Abstraction (focusing on essential features). Inheritance (reusing class definitions)
: The ability of different objects to respond to the same message in unique ways.
: A critical distinction in the book is separating how an object is used (interface) from how it works internally (implementation) to ensure minimal impact when internal code changes. SOLID Principles & Design Patterns : The 5th edition expanded coverage of SOLID principles and common design patterns
: Understanding "has-a" relationships versus "is-a" (inheritance) relationships.