Core Java · interview question
When refactoring a procedural e-commerce script into an object-oriented design, what is a sign that a group of related functions should become a method in a new class?
Multiple choiceMediumchapter-2-curatedpremiumcore-javacode-reading-and-refactoring-to-objects
Answer and explanation
Correct answer
A. They operate on the same set of data.
Why
When a group of functions operates on the same set of data, it indicates high cohesion, which is a key principle in object-oriented design. Consolidating them into a class method improves encapsulation and maintainability.
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