Vibe codingMediumvc-g034

Subject Ai code reviewLevel Mid–Senior~15 minCommon in Algorithms & data structures interviewsIndustries Software development, IT services

Question

You asked an AI agent to add resilience to a Java method that parses an optional config integer, defaulting to 30 if missing or malformed. It produced:

java

1public int getTimeoutSeconds(Map<String, String> config) {2    int timeout = 30;3    try {4        timeout = Integer.parseInt(config.get("timeout"));5    } catch (Exception e) {6        // fall back to default7    }8    return timeout;9}

It compiles and returns 30 when the key is absent. Why is this a maintenance landmine?

What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.

Learn the concepts

Describe your solution

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.