Greeting Formatter Class
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
Implement MessageFormatter(text) with a method sort_by_case() that returns text rearranged so all lowercase letters come first (in their original relative order), followed by all uppercase letters (in their original relative order). Non-letter characters come at the end, in their original relative order. Also implement sort_by_case(text) as a free function that returns MessageFormatter(text).sort_by_case().
Summary
First impressions are formatted carefully.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision