OOP & Design Patterns - Factory vs Abstract Factory vs Builder - When to Use Each
Compare the Factory pattern and Builder pattern for object creation. When is Builder pattern a better choice than Factory?
Compare the Factory pattern and Builder pattern for object creation. When is Builder pattern a better choice than Factory?
hard⚖️ Approach Comparison Q8 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand Factory pattern scope
Factory is suited for simple object creation with fixed parameters.Step 2: Understand Builder pattern scope
Builder excels at constructing complex objects stepwise, especially with optional parts.Final Answer:
Option A → Option AQuick Check:
Builder handles complexity and optional parts better than Factory [OK]
Quick Trick: Complex stepwise construction -> Builder preferred [OK]
Common Mistakes:
MISTAKES- Using Builder for simple objects
- Confusing Singleton with Factory
Trap Explanation:
PITFALL- Candidates often pick Factory for complex objects, missing Builder's advantage.
Interviewer Note:
CONTEXT- Tests tradeoff reasoning between Factory and Builder patterns.
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