Which language are Gosu rules written in?

Gosu rules are written in the Gosu programming language, which is specifically designed to integrate seamlessly with the Guidewire Insurance Suite. Gosu is a statically typed language that combines elements of both scripting and full-fledged programming, providing strong support for object-oriented programming concepts, while also allowing for concise and expressive code.

By using Gosu, developers can leverage features specifically tailored for insurance applications, such as business logic expression, rule execution, and data manipulation. This direct use of the Gosu language allows for greater alignment with Guidewire's architecture, enhancing maintainability and readability of the code within the context of insurance applications.

The other choices, such as Java, C++, and Python, are not used to write Gosu rules. While Gosu is influenced by Java and can directly interact with Java classes, it is a distinct language and not simply a Java implementation. By understanding that Gosu is both the name of the language and the tool through which rules are constructed within the Guidewire platform, one can appreciate its significance in the development process.