Programming 2 with Java

Exercise: Company Statistics

The program CompanyStatistics allows to create statistics on the employees of a Company.

1. Re-implement the methods that return the following values using streams, lambda expressions and method references:
   • the average salary of all employees
   • the minimum salary of all employees
   • the maximum salary of the employees of a department
   • the employee with the lowest salary
   • the employee with the highest salary
   • the number of employees per department
   • the average salary of employees per department

Solution