package beans;import lombokAllArgsConstructor;import lombokData;import lombokNoArgsConstructor;DataNoArgsConstructorAllArgsConstructorpublic class ClassRoom int id; String name;package Dao;import

The code provided is a Java project that implements a simple school management system. It includes classes for the data model (beans), data access (Dao), services, and controllers.

The main components of the system are:

• ClassRoom: A bean class representing a classroom with an ID and name.
• BaseDao<B, P>: An interface defining basic CRUD operations for data access.
• ClassRoomDao: An interface extending BaseDao for classroom-specific operations.
• DB: A class containing static data for classrooms and students.
• ClassRoomDaoImpl: An implementation of ClassRoomDao that provides methods for accessing and manipulating classroom data.
• BaseSerlet<B, P>: An interface defining basic CRUD operations for services.
• ClassRoomSerlet: An interface extending BaseSerlet for classroom-specific operations.
• ClassRoomImpl: An implementation of ClassRoomSerlet that uses ClassRoomDaoImpl to perform CRUD operations on classrooms.
• ClassRoomControllerGetAll: A servlet that handles HTTP requests for retrieving all classrooms and forwards the data to a JSP page for display.
• ClassAdd: A servlet that handles HTTP requests for adding a new classroom and redirects to the ClassRoomControllerGetAll servlet after successful addition.
• ClassDelete: A servlet that handles HTTP requests for deleting a classroom and redirects to the ClassRoomControllerGetAll servlet after successful deletion.
• StuGetAll: A servlet that handles HTTP requests for retrieving all students and forwards the data to a JSP page for display.
• Management: A servlet that displays a menu for accessing different parts of the system.
• JSP files: class.jsp, error.jsp, menu.jsp, and student.jsp for displaying data and error messages.

The system allows users to manage classrooms by adding, deleting, and viewing them. It also provides a menu for accessing different parts of the system