data/test/Hugo-Gao/Design-pattern/CommandPattern/src/SimpleSlot/Light.java

package SimpleSlot;

/**
 * Created by Administrator on 2017/6/19.
 */
public class Light
{
    public void on()
    {
        System.out.println("Light is on!");
    }

    public void off()
    {
        System.out.println("Light is off!");
    }
}