Subject

Type Parameters:

T - The type that is stored within the subject that is sent to all the registered observers whenever it is updated.

All Known Implementing Classes:

StationCollider
```
public interface Subject<T>
```
A Subject contains a list of registered observers which all receive the same value of type T whenever it is updated.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`clearAllObservers()`
`void`	`deregister(Observer<T> observer)`	Stop an observer from receiving future updates from this subject
`T`	`getLastNotification()`
`void`	`notifyObservers(T update)`
`void`	`register(Observer<T> observer)`	Add an observer which will be notified with every new T

- Method Detail
  - register
```
void register(Observer<T> observer)
```
    Add an observer which will be notified with every new T
    
    Parameters:
    
    observer - the observer to register to this subject
  - deregister
```
void deregister(Observer<T> observer)
```
    Stop an observer from receiving future updates from this subject
    
    Parameters:
    
    observer - the observer to deregister from this subject
  - clearAllObservers
```
void clearAllObservers()
```
  - notifyObservers
```
void notifyObservers(T update)
```
    Parameters:
    
    update - The new T to send to every registered observer
  - getLastNotification
```
T getLastNotification()
```
    Returns:
    
    the most recent value that was sent to the observers.