Your goal is to implement the logical code for an elevator. This simulated elevator is a single elevator for a 5 story building.
To start running the elevator, just compile and run Main. System.out will print what the elevator is doing.
The only existing file in src/ you may modify is Main.java and only between lines 14 and 39. ISimulatedElevator.java, SimulatedElevator.java and ButtonHandler.java must remain untouched.
Feel free to create any additional classes, interfaces, etc that you think make sense for your implementation.
There are comments in ButtonHandler and ISimulatedElevator explaining what each method does.