What groups of tags does the JSTL library consist of?

The JSTL (JavaServer Pages Standard Tag Library) library consists of five main groups of tags:

• Core: Basic tags for controlling the flow of execution (if, forEach, choose), working with variables (set, remove), and managing URLs (url, redirect). Uses the prefix c.
• Format: Tags for formatting data such as numbers, dates, and times, as well as localization. Uses the prefix fmt.
• SQL: Tags for interacting with databases via JDBC, executing queries, and updating data. Uses the prefix sql.
• XML: Tags for working with XML documents, parsing, transforming, and retrieving data. Uses the prefix x.
• Functions: A set of functions for performing common operations with strings, collections, and XML. Uses the prefix fn.