Java Code Analyzer

This tool analyzes Java code snippets for syntax correctness, deprecation usage, naming and formatting anomalies, and cross-version compatibility concerns. It operates on the source text only, does not compile or execute code, and furnishes an actionable report you can review in seconds. It is designed for developers preparing pull requests, students learning Java concepts, and instructors conducting rapid code checks. By centralizing common mistakes, it reduces back-and-forth in code reviews.
Conceptually, analysis relies on a rule-based parser, a curated library of Java SE version checks, and heuristics for common patterns such as generics, streams, and exceptions. For each issue, the tool records the location, severity, and one or more fixes or refactors. Output can be consumed by IDEs or CI pipelines as structured JSON or human-readable summaries.
Unique value lies in combining multi-version compatibility signals with practical code-quality guidance, while remaining lightweight and framework-agnostic. It enables teams to enforce consistency across Java versions (e.g., 8 through 21) and supports learners by providing context-rich explanations and sample fixes. It complements local linters by focusing on Java-specific language features and API usage rather than project configuration.
Core features include syntax validation, style guidance for naming and braces, API deprecation alerts, import optimization recommendations, and cross-version checks. Use cases include pre-commit checks, code-review gatekeeping, classroom demonstrations, and quick greenfield prototype validation.