java设计模式之外观模式

//子系统类（电灯类）
public class Light {
private String position;
public Light(String position){
this.position=position;
}
public void on(){
System.out.println(this.position+"灯打开");
}
public void off(){
System.out.println(this.position+"灯关闭");
}
}

//子系统类
public class Fan {

public void on(){
System.out.println("风扇打开");
}
public void off(){
System.out.println("风扇关闭");
}

}

//子系统类
public class AirConditioner {
public void on(){
System.out.println("空调打开");
}
public void off(){
System.out.println("空调关闭");
}

}

//子系统类
public class TV {
public void on(){
System.out.println("电视机打开");
}
public void off(){
System.out.println("电视机关闭");
}
}

//外观类（总开关类）
public class SwitchFacade {
private Light light[]=new Light[4];
private Fan fan;
private AirConditioner ac;
private TV tv;
public SwitchFacade(){
light[0]=new Light("左前");
light[1]=new Light("左后");
light[2]=new Light("右前");
light[3]=new Light("右前");
fan=new Fan();
ac=new AirConditioner();
tv=new TV();
}
public void on(){
light[0].on();
light[1].on();
light[2].on();
light[3].on();
fan.on();
ac.on();
tv.on();
}
public void off(){
light[0].off();
light[1].off();
light[2].off();
light[3].off();
fan.off();
ac.off();
tv.off();
}

}

//测试类
public class Client {

public static void main(String[] args) {
// TODO Auto-generated method stub
SwitchFacade sf=new SwitchFacade();
sf.on();
System.out.println("---------------------------");
sf.off();

}

}