#144 · Programming Language Tools Developer Tool

Java Inspector

Inspect Java code quality using structural metrics, estimated cyclomatic complexity, nesting depth, long-method checks, parameter counts, magic-number detection, and actionable refactoring recommendations.

Developer Input

Java code-quality inspection

Java source code

public class OrderService {
    public double total(double subtotal, boolean vip, int items) {
        double result = subtotal;
        if (vip) result *= 0.9;
        if (items > 10) result -= 25;
        if (result < 0) result = 0;
        return result;
    }
}

Processing mode

Long method threshold

lines

Check naming conventions Detect magic numbers Detect duplicate lines Auto-run while typing

How to use this developer tool

Paste or type the source code in the input editor.
Select the processing mode and adjust the numeric threshold or indentation option.
Enable the checks needed for this task.
Run the tool, review the status and report, then copy or download the result.

What this developer tool does

Java quality and maintainability report is produced locally in your browser and remains copy-ready.

Combines declaration extraction, branch-token counting, brace-depth measurement, method-length estimation, and configurable code-smell rules.

Complexity values are estimates intended for fast triage, not substitutes for compiler-backed static-analysis platforms.

Example

Input: Paste the included sample source. Output: Run Java Inspector to produce a declaration report, validation result, formatted source, conversion, or generated template. The sample is executable and can be replaced with your own code.

Tips for better output

Use complete source files when possible so declarations and scopes can be detected reliably.
Run formatter or viewer output through the relevant validator before committing changes.
For compiler-authoritative results, verify the final code with the target JDK or .NET SDK.

FAQ

How do I use a Java Inspector online?

Paste your Java source, select the required mode and options, then run the tool to produce a copy-ready result and analysis report.

Can this Java Inspector process code without uploading it?

Yes. Processing runs locally in the browser, so the source is not sent to a server by this page.

What errors can the Java Inspector detect?

The tool detects the common structural, delimiter, declaration, formatting, or conversion issues relevant to its selected mode.

Does the Java Inspector support large source files?

It is optimized for large pasted files and debounces automatic processing, though extremely large or generated files may be better handled in an IDE.

Is the Java Inspector a replacement for a compiler?

No. It is a fast browser-based development aid; compile with the appropriate JDK or .NET SDK for authoritative results.

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Analysis modules

Module	Purpose
Lexical masking	Protects comments and literals during structural analysis.
Source analysis	Java quality and maintainability report.
Live metrics	Characters, lines, bytes, status, and measured processing time.

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