[Solved] In a large Java project with many related classes, how does polymorphism enhance maintainability? — Ans: By allowing new classes to be added with minimal changes to existing code... | Java

Java - Polymorphism

In a large Java project with many related classes, how does polymorphism enhance maintainability?

ABy allowing new classes to be added with minimal changes to existing code through common interfaces

BBy forcing all classes to implement identical methods regardless of functionality

CBy requiring explicit casting between unrelated classes

DBy eliminating the need for abstract classes or interfaces

Step-by-Step Solution

Solution:

Step 1: Understand polymorphism's role in extensibility
Polymorphism allows new subclasses to be introduced without modifying existing code, as they share common interfaces or superclasses.
Step 2: Evaluate options
By allowing new classes to be added with minimal changes to existing code through common interfaces correctly states that polymorphism supports adding new classes with minimal impact.
Final Answer:
By allowing new classes to be added with minimal changes to existing code through common interfaces -> Option A
Quick Check:
Polymorphism enables flexible extension via interfaces [OK]

Quick Trick: Polymorphism enables flexible extension via interfaces [OK]

Common Mistakes:

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