Healthland interview question

Coding Assessment: Create a Java executable that takes in a CSV file as an argument, and a calculation type as a second argument. The calculation types warrant different outputs, as shown: if a - output a total of all salaries of the employees if b - output a total of all salaries for each role of employees if c - output a total of all salaries by time unit (eg. Year, Month, Week, etc) if d - output a total of all salaries by time unit for each employee role if e - given an additional argument, a salary limit, output groups of employees so when their salaries are totaled together they do not exceed the salary limit such that no further employees can be added to a group without that group's total exceeding the salary limit.