Navigate to the RegexUtils class in the project, review existing validation methods, then implement a new method for bank card number validation using appropriate regex patterns (e.g., for common card types).
Tech stack
java
Domain
mobile dev
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaAndroidRegex
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
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