[Solved] Which of the following problems CANNOT be effectively solved using the Template Method Pattern? - Ans: Allowing clients to dynamically choose and switch entire algorithms at runtime. | OOP & Design Patterns

OOP & Design Patterns - Template Method Pattern - Define Skeleton, Override Steps

Which of the following problems CANNOT be effectively solved using the Template Method Pattern?

AImplementing a fixed sequence of steps with some steps varying by subclass.

BAllowing clients to dynamically choose and switch entire algorithms at runtime.

CProviding optional steps in an algorithm controlled by hook methods.

DDefining an algorithm skeleton where subclasses override specific steps.

Step-by-Step Solution

Solution:

Step 1: Analyze problem requirements
Template Method supports fixed skeleton with subclass overrides and optional steps via hooks.
Step 2: Identify which problem is unsuitable
Dynamic selection and switching of entire algorithms at runtime is better handled by Strategy Pattern, not Template Method.
Final Answer:
Option B -> Option B
Quick Check:
Dynamic algorithm switching ≠ Template Method [OK]

Quick Trick: Dynamic algorithm switching -> Strategy, not Template Method [OK]

Common Mistakes:

MISTAKES

Trap Explanation:

PITFALL

Candidates often think Template Method can handle dynamic algorithm selection, but it fixes the skeleton at compile time.

Interviewer Note:

CONTEXT

Tests candidate's understanding of Template Method limitations and anti-patterns.

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