Write a program to demonstrate multiple inheritance. Consider two base classes worker(int code, char name, float salary), HR who calculates the different allowances like (float DA, HRA). You have another class manger with calculates (float TA(is 10% of salary), gross salary) where the properties of worker and HR is used in this class. Write a test application class to create an array of 10 workers and display their details with gross salary.

Define a class Employee. Display the personal salary details of three employeesusing single inheritance

Create a Java  base class called Employee. Use this class to store two double-type values that could be used to compute the salary of employees. Also,the base class should have a static variable ‘totalemp’  to keep track of the total number of employees created. Derive two specific classes called part_time and full_time from the base employee. Add a member function called as get_basic() to get the basic pay and another member called display_salary() to compute and display the salary of the employees. Using these three classes, design a program that will accept the basic pay of part_time and full_time employees interactively. Remember the two values given as input will be treated as the basic pay of the employees and the following information is used for calculating the salaries of both the part-time as well as full-time employees. Print invalid if the basic_salary of part-time employee and basic_salary of full-time employee are not met the ”Boundary Condition”Part time                                         Full timeHRA = 20% of basic pay                    HRA = 30% of basic payDA = 72% of basic pay                      DA = 80% of basic paySalary = Basic + HRA + DA              Salary = Basic + HRA + DABoundary Condition:0 < basic_salary of part-time employee <= 10000000 < basic_salary of full-time employee <= 1000000Input Format:First line to enter the basic_salary of part-time employee and basic_salary of full-time employeeOutput Format:Total salary of part-time employee and total salary of full-time employee.Total number of employees processed Sample Testcase Input-1:50007000000Sample Testcase Output-1:8900.0invalid1 Sample Testcase Input-2:30000600000Sample Testcase Output-2:42720.0110400.02 Sample Testcase Input-3:0900000Sample Testcase Output-3:invalid216000.01

You are tasked with developing a software system for managing different types of employees in a company. The company has three types of employees: full-time employees, part-time employees, and consultants. Each type of employee has different attributes and calculation methods for calculating their monthly salary.Full-time employees receive a fixed monthly salary.Part-time employees are paid based on the number of hours they work and rate per hour.Consultants are paid based on the number of hours they work and an hourly rate.Design a C++ program that utilizes runtime polymorphism to model this scenario. Create a base class Employee with virtual functions calculateSalary() and displayDetails(). Derive three classes FullTimeEmployee, PartTimeEmployee, and Consultant from Employee, each implementing its own version of calculateSalary() and displayDetails() based on the rules described above.Then, demonstrate the use of runtime polymorphism by creating an array of Employee pointers containing instances of full-time employees, part-time employees, and consultants. Populate the array with objects of each type and iterate over it, calling the calculateSalary() and displayDetails() functions for each employee. Input Format:Enter name of full-time employeeEnter monthly salaryEnter name of part-time employeeEnter hourly rateEnter hours workedEnter name of consultantEnter hourly rateEnter hours worked

Create a class employee with protected members:Name,age,degree,genderCreate a member function to read the details.  Create a derived class department by inheriting the employee class privately.Declare the protected members: department_name, designation.Create a member function to read the details of the department.Create a member function to display the details of employee class and department class.Create a derived class salary by inheriting the employee class privately with protected members: basic payCreate default constructor to read basic pay.Define a member function to calculate the gross pay. Gross_pay=basic_pay+DA+HRADA=30% of basic payHRA =12% of basic payCreate a member function to display the details of employee class and the grosspay.

21. Write a Java program that creates a class hierarchy for employees of a company. The base class should be Employee, with subclasses Manager, Developer, and Programmer. Each subclass should have properties such as name, address, salary, and job title. Implement methods for calculating bonuses, generating performance reports, and managing projects