Simple Java Runner

A simplified version of JavaFiddle that allows you to write and run Java code in your browser using CheerpJ.

Features

• Clean Interface: Simple, focused UI with just the essentials
• Code Editor: Powered by CodeMirror 6 with Java syntax highlighting
• Instant Execution: Run Java code directly in the browser
• Console Output: View program output and compilation errors

Getting Started

Prerequisites

• Node.js (for development)
• Modern web browser with WebAssembly support

Installation

1. Clone or download this project
2. Install dependencies:

   npm install

3. Start the development server:

   npm run dev

4. Open your browser to http://localhost:3000

Usage

1. Write your Java code in the editor (default is a "Hello World" example)
2. Click the "Run Code" button or press Ctrl/Cmd + Enter
3. View the output in the Console and Result panels

How It Works

This application uses:

• CheerpJ: A WebAssembly-based Java runtime that runs Java code in the browser
• CodeMirror 6: Modern code editor with Java syntax highlighting
• Vite: Fast build tool for development and production

The Java code is compiled and executed entirely in the browser using CheerpJ's virtual JVM.

Differences from Original JavaFiddle

This simplified version removes:

• Svelte framework dependency
• File management system
• Sharing functionality
• Favorites system
• Settings panel
• Complex routing
• Local storage persistence

License

Apache-2.0 (same as original JavaFiddle)