Operating Systems Project

There is a party with $8$ guests in my house. I've hired a waiter from a catering company to serve you. We have $"$b$$rek$",$ "cake" and "drink" to be consumed by my $10$ guests $(30$ boreks, $15$ slices of cake and $30$ glasses of drink$).$ There are $3$ trays, each has a capacity of $5(5$ boreks on borek tray, $5$ slices of cake on cake tray and $5$ glasses of drink on drink tray$).$ As the guests eat and drink, a waiter will fill the trays $($when there is $0$ or $1$ left on the tray$).$ Every guest must eat and drink from all types of food and drink at least once. A guest can eat max $4$ boreks and drink $4$ glasses of drink, but can eat only $2$ slices of cake. This will last until all food and drink is consumed.

Simulate the scheduling by implementing in C$,$ Java or C#$,$ showing every step that the guests and the waiter do$.$

The project will be implemented either with C or Java but using threads is a must.