This assignment is to implement the $$employee assignment$.$ The assignment is to display the weekly pay for each employee whose information is in a file. The display needs to be in order based on social security number. The program requirements are

file name needs to be a command line argument

appropriate error handling needs to be done

appropriate design principles need to used

appropriate documentation needs to be supplied

employee objects need to be stored in a binary search tree where the social security number is used to order the employees.

There are $2$ types of employees: hourly employees and salaried employees. All employees have a name and a social security number. Hourly employees also have an hourly rate and the number of hours. Salaried employees have a yearly rate.

You need to create your own data file. The entries in your file should look something like the following:

John$\_$Doe $000000000$ salaried $60000$

Sally$\_$Smith $999999999$ hourly $15\mathrm{.}538\mathrm{.}5$