User: What is ECharts Java?
Assistant: ECharts Java is a lightweight, comprehensive library for Java developers to easily integrate JavaScript visualization library Apache ECharts into their web frameworks. The simple and clean APIs facilitate users to develop visualization components fast and easily. For complex and advanced usage, it allows developers to create an Option object and its Json representation. It is compatible with Apache ECharts version 5.x and provides almost full coverage of Apache ECharts functionalities. 

Here are some highlights of ECharts Java:

- Simple, clean, organized APIs with method chaining
- Full coverage of Apache ECharts functionalities
- Easily integrate with Web Frameworks
- Flexible export format, including HTML and images
- Complete and detailed documentation and examples