[Solved] Consider two approaches to cloning an object with nested mutable fields: 1) Manual recursive deep copy implementation.... When is approach 1 preferable over approach 2? | OOP & Design Patterns

OOP & Design Patterns - Prototype Pattern - Deep Copy vs Shallow Copy

Consider two approaches to cloning an object with nested mutable fields: 1) Manual recursive deep copy implementation. 2) Using built-in language-specific deepcopy utilities. When is approach 1 preferable over approach 2?

AWhen you need fine-grained control over how each nested object is copied

BWhen the object contains cyclic references that built-in utilities cannot handle

CWhen the object graph is very large and performance is critical

DWhen you want the simplest and most maintainable code

Step-by-Step Solution

Solution:

Step 1: Compare approaches
Built-in deepcopy utilities handle most cases automatically, but manual recursive deep copy allows customizing copy behavior per nested object.
Step 2: Identify trade-offs
Manual approach is preferable when fine-grained control is needed, e.g., skipping some fields or transforming data during copy.
Final Answer:
Option A -> Option A
Quick Check:
Manual deep copy offers customization over built-in utilities -> [OK]

Quick Trick: Manual copy allows custom behavior per nested object [OK]

Common Mistakes:

MISTAKES

Assuming built-in always better
Ignoring customization needs

Trap Explanation:

PITFALL

Candidates think built-in utilities always outperform manual implementations.

Interviewer Note:

CONTEXT

Tests understanding of trade-offs between manual and built-in deep copy.

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Solution Trace

More OOP & Design Patterns Quizzes

When is approach 1 preferable over approach 2?

Step 1: Compare approaches

Step 2: Identify trade-offs

Final Answer:

Quick Check:

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