// innerclasses/controller/Controller.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// The reusable framework for control systems
package innerclasses.controller;
import java.util.*;

public class Controller {
 // A class from java.util to hold Event objects:
 private List<Event> eventList = new ArrayList<>();
 public void addEvent(Event c) { eventList.add(c); }
 public void run() {
 while(eventList.size() > 0)
 // Make a copy so you're not modifying the list
 // while you're selecting the elements in it:
 for(Event e : new ArrayList<>(eventList))
 if(e.ready()) {
 System.out.println(e);
 e.action();
 eventList.remove(e);
 }
 }
}