What are the main methods available in the HttpServlet class?

The main methods in the HttpServlet class are related to handling various types of HTTP requests:

• doGet(HttpServletRequest req, HttpServletResponse resp): Handles GET requests.
• doPost(HttpServletRequest req, HttpServletResponse resp): Handles POST requests.
• doPut(HttpServletRequest req, HttpServletResponse resp): Handles PUT requests.
• doDelete(HttpServletRequest req, HttpServletResponse resp): Handles DELETE requests.
• doHead(HttpServletRequest req, HttpServletResponse resp): Handles HEAD requests.
• doOptions(HttpServletRequest req, HttpServletResponse resp): Handles OPTIONS requests.
• doTrace(HttpServletRequest req, HttpServletResponse resp): Handles TRACE requests.

Additionally, there are lifecycle methods:

• init(): Called once during servlet initialization.
• service(HttpServletRequest req, HttpServletResponse resp): Dispatches requests to the appropriate doXxx methods based on the HTTP method type.
• destroy(): Called when the servlet is destroyed.

And other useful methods, for example:

• getServletConfig(): Returns the ServletConfig object containing configuration parameters.
• getServletContext(): Returns the ServletContext object providing information about the web application.