LLD - Behavioral Design Patterns — Part 1
What is the main purpose of the
State pattern in system design?What is the main purpose of the State pattern in system design?
easy🧠 Conceptual Q11 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand the role of the State pattern
The State pattern helps an object change its behavior based on its internal state without changing its class.Step 2: Compare with other design patterns
Other options describe Singleton (A), Prototype (B), and Builder (C) patterns, which are unrelated to state behavior changes.Final Answer:
To allow an object to change its behavior when its internal state changes -> Option CQuick Check:
State pattern = behavior change by internal state [OK]
Quick Trick: State pattern changes behavior with state, not object creation [OK]
Common Mistakes:
MISTAKES- Confusing State pattern with Singleton or Builder patterns
- Thinking it manages object creation instead of behavior
- Assuming it provides global access to resources
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