# Getting Started

This repository is a small set of Java source samples focused on class-file headers and comment conventions. There is very little runtime behavior here; the code is mainly useful as reference material for understanding header formats, revision notes, and module documentation patterns.

## What This Project Does

The project appears to demonstrate or validate different styles of Java file headers: no header, short license headers, partial template headers, and long revision histories. If you are new to the codebase, treat the Java files as examples of documentation structure rather than application logic.

## Recommended Reading Order

Start with the broadest overview, then move into the file-level examples:

1. [`overview.md`](../overview.md) — high-level description of the repository and its purpose.
2. [`NoHeader.java`](../../src/main/java/NoHeader.java) — the simplest baseline example.
3. [`MitLicense.java`](../../src/main/java/MitLicense.java) — a minimal legal header example.
4. [`PartialHeader.java`](../../src/main/java/PartialHeader.java) — a partially completed module-style header.
5. [`WithHeader.java`](../../src/main/java/WithHeader.java) — a compact, complete processing header.
6. [`Crosslink.java`](../../src/main/java/Crosslink.java) — shows a header plus an in-code add block.
7. [`LongHeader.java`](../../src/main/java/LongHeader.java) — the longest example and best place to study the revision-history pattern.

## Key Entry Points

There are no deeply connected abstractions or framework entry points in this repository. The most important classes to read first are the example files themselves:

- [`NoHeader`](../../src/main/java/NoHeader.java)
- [`MitLicense`](../../src/main/java/MitLicense.java)
- [`PartialHeader`](../../src/main/java/PartialHeader.java)
- [`WithHeader`](../../src/main/java/WithHeader.java)
- [`Crosslink`](../../src/main/java/Crosslink.java)
- [`LongHeader`](../../src/main/java/LongHeader.java)

Each class is intentionally small, so the header comment is usually more informative than the class body.

## Project Structure

The repository is organized as a flat set of sample Java files under `src/main/java`.

- `src/main/java/NoHeader.java` — empty class with no leading comment block
- `src/main/java/MitLicense.java` — class with a short MIT license header
- `src/main/java/PartialHeader.java` — class with a partially filled Japanese header template
- `src/main/java/WithHeader.java` — class with a concise processing-name header
- `src/main/java/Crosslink.java` — class with a header and inline add markers
- `src/main/java/LongHeader.java` — class with a very long revision log

There is no obvious multi-module application structure, service layer, or package hierarchy in the indexed files.

## Configuration

No build or runtime configuration files were detected in the indexed repository view. That means there is currently no visible `pom.xml`, `build.gradle`, application properties file, or similar runtime configuration to learn first.

What to look for if the project grows:

- `pom.xml` or `build.gradle` — dependency and build settings
- `src/main/resources` — application configuration and bundled assets
- root-level README or policy files — repository conventions and workflow notes

## Common Patterns

A few patterns repeat throughout the codebase:

- **Comment-first documentation** — file headers carry most of the meaning.
- **Minimal class bodies** — the classes themselves are often empty or nearly empty.
- **Revision markers** — some files use versioned add blocks such as `ADD START` / `ADD END`.
- **Japanese header fields** — several comments use Japanese labels like `処理名` and `モジュール名`.
- **Standalone examples** — classes are independent and do not appear to call one another.

## Practical Advice

If you are onboarding, read the header comments before reading the class bodies. The main question this repository answers is not “how does the code execute?” but “what header format is expected here?”

If you need to make a change, first match the style of the nearest example file, then keep the class body minimal unless the header pattern requires otherwise.