USE JAVA ONLY

- Write a class called Employees with the following details : - Attributes: Employee_id (int), Employee_Name (String), Department (String) - Overloaded constructor Ex: Employees (Employee_id, Employee_Name, Department) - toString() method to return Employees details (Employee_id, Employee_Name, Department) - Write TestHashSet class with main and perform the following operation: - Create 7 Employees objects - Create a HashSet of Employees - Add 7 Employees object to the HashSet. - Print size of HashSet. - Remove an Employee from HashSet - Check if a given Employee is available in the HashSet or not - Remove an Employee from HashSet - Print size of HashSet. - Print the HashSet using for... in loop - Print the HashSet using Iterator