A) Write a Java program:

1)

Create a class called Employee that includes:

three instance variables: first name (type String), the last name (type string), and a monthly salary (double).

constructor that initializes the three instance variables.

set and get methods for each instance variable. If the monthly salary is not positive, set it to 0.0.

a method that returns yearly salary (yearly salary = monthly salary *12)

a method called empDataToString() to return the information (first name, last name, monthly salary and yearly salary) of an Employee.

Write a test application named EmployeeTest that demonstrates class Employees capabilities. Create two Employee objects and display each objects information.