import java.util.concurrent.*;import java.util.List;import java.util.ArrayList;// 事件接口interface Event {// 事件相关的属性和方法}// 观察者接口interface Observer {void update(Event event);}// 事件处理系统class EventSystem {private final ExecutorService executor = Executors.newCachedThreadPool();p...
import java.util.concurrent.*;import java.util.List;import java.util.ArrayList;// 事件接口interface Event {// 事件相关的属性和方法}// 观察者接口interface Observer {void update(Event event);}// 事件处理系统class EventSystem {private final ExecutorService executor = Executors.newCachedThreadPool();p...