Cookies are text files that are provided by the server and saved in the client system in order to maintain information on the local machine and track it. Through javax.servlet.http, the Java Servlet supports HTTP cookies. Cleanable and serializable interfaces are implemented by this cookie class.
The server transmits a collection of cookies to the client computer, including name, age, and other information. The browser then saves the information on the local system and transmits these cookies to the server if the webserver receives a request. The user can then be identified using this information.