Java Reflect

package observer;

import java.lang.reflect.Method;

import oracle.net.aso.c;

public class Test {

    public static void main(String[] args) throws Exception {
        
        String str = "observer.Dad";
        Class cls = Class.forName(str);
        Object obj = cls.newInstance();
        Method[] methods = cls.getMethods();
        for(Method m:methods)
        {
            if(m.getName().equals("ActionToWakeup"))
            {
                m.invoke(obj, new WakeupEvent(0, "", null));
            }
        }
    }
}

package observer;

public class Dad{
    @Override
    public void ActionToWakeup(WakeupEvent e) {
        System.out.println("儿子醒了，我要去喂奶了。。。");
    }
}