Make code JAVA for restaurant management order with blockchain smart contract for:

Actor $1$ as Guest with use case $($OrderMeal$,$ PayOrder$)$

Actor $2$ as Manager with use case $($Add Meal to Menu, Remove Meal from Menu, Change Meal Price$)$

Actor $3$ as Cook with use case $($TakeOrder$,$ Set Order Completed$)$

Actor $4$ as Waiter with use case $($PlaceOrder$,$ CancelOrder, SetTable, AddMeal, Add Side Dish, RemoveMeal, Remove Side Dish, AddNote$)$