问答题

【说明】
传输门是传输系统中的重要装置。传输门具有Open(打开)、Closed(关闭)、Opening (正在打开)、StayOpen(保持打开)和Closing(正在关闭)五种状态。触发状态的转换事件有click、complete和timeout三种。事件与其相应的状态转换如下图所示。


下面的Java代码1与Java代码2分别用两种不同的设计思路对传输门进行状态模拟，请填补代码中的空缺。
【Java代码1】
public class Door {
public static final int CLOSED = 1； public static final int OPENING = 2；
public static final int OPEN = 3； public static final int CLOSING = 4；
public static final int STAYOPEN = 5； private int state = CLOSED；
//定义状态变量，用不同的整数表示不同状态
private void setState(int state){ this.state = state；}
//设置传输门当前状态
public void getState() {
//此处代码省略，本方法输出状态字符串，
//例如，当前状态为CLOSED时，输出字符串为"CLOSED"
}
public void click() { //发生click事件时进行状态转换
if ( (1) ；) setState(OPENING)；
else if ( (2) ；) setState{CLOSING)；
else if ( (3) ；) setState(STAYOPEN)；
}
//发生timeout事件时进行状态转换
public void timeout() { if (state == OPEN) setState(CLOSING)；}
public void complete() {//发生complete事件时进行状态转换
if (state == OPENING) setState(OPEN)；
else if (state == CLOSING) setState(CLOSED)；
}
public static void main(String [] args){
Door aDoor = new Door()；
aDoor.getState()；aDoor.click()；aDoor.getState()；aDoor.complete()；
aDoor.getState()；aDoor.click()；aDoor.getState()；aDoor.click()；
aDoor.getState()；return；
}
}
【Java代码2】
public class Door {
public final DoorState CLOSED = new DoorClosed(this)；
public final DoorState OPENING = new DoorOpening(this)；
public final DoorState OPEN = new DoorOpen(this)；
public final DoorState CLOSING = new DoorClosing(this)；
public final DoorState STAYOPEN = new DoorStayOpen(this)；
private DoorState state = CLOSED；
//设置传输门当前状态
public void setState(DoorState state) { this.state=state；}
public void getState(){ //根据当前状态输出对应的状态字符串
System.out.println(state.getClass().getName())；
}
public void click(){ (4) ；}//发生click事件时进行状态转换
public void timeout(){ (5) ；}//发生timeout事件时进行状态转换
public void complete(){ (6) ；)//发生complete事件时进行状态转换
public static void main(String[]args){
Door aDoor = new Door()；
aDoor.getState()；aDoor.click()；aDoor.getState()；aDoor.complete()；
aDoor.getState()；aDoor.timeout()；aDoor.getState()；return；
}
}
public abstract class DoorState { //定义所有状态类的基类
protected Door door ；
public DoorState(Door doer) { this.door = door；}
public void click() {}
public void complete() {}
public void timeout() {}
}
class DoorClosed extends DoorState { //定义一个基本的Closed状态
public DoorClosed(Door door) { super(door)；}
public void click() { (7) ；)
//该类定义的其余代码省略
}
//其余代码省略