创建志愿者和学生使用工厂方法与反射实现

// 雷锋类
public class LeiFeng {
    public void Sweep(){
        System.out.println("扫地");
    }
    public void Wash(){
        System.out.println("洗衣");
    }
    public void BuyRice(){
        System.out.println("买米");
    }
}
// 学雷锋的大学生
public class Undergraduate extends LeiFeng {
}
// 学雷锋的社区志愿者
public class Volunteer extends LeiFeng {
}
// 雷锋工厂
interface IFactory {
    LeiFeng createLeiFeng();
}
// 学雷锋的大学生工厂
public class UndergraduateFactory implements IFactory{
    @Override
    public LeiFeng createLeiFeng() {
        return new Undergraduate();
    }
}
// 学雷锋的志愿者工厂
public class VolunteerFactory implements IFactory{
    @Override
    public LeiFeng createLeiFeng() {    
        return new Volunteer();
    }
}
// 通过反射来创建学生实例
public class UnderReflection {
        private static final String FactoryName = "UndergraduateFactory";
        public static LeiFeng CreateUnder() throws InstantiationException, IllegalAccessException, ClassNotFoundException{
            UndergraduateFactory newInstance =(UndergraduateFactory)Class.forName("com.design.five.factory.mehtod.leifeng.factorymethod."+FactoryName).newInstance();
            return newInstance.createLeiFeng();
        }        
}
// 通过反射获取志愿者实例
public class VolunteerReflection {
        private static final String FactoryName = "VolunteerFactory";
        public static LeiFeng CreateVolunteer() throws InstantiationException, IllegalAccessException, ClassNotFoundException{
            VolunteerReflection  newInstance = (VolunteerReflection) Class.forName("com.design.five.factory.mehtod.leifeng.factorymethod."+FactoryName).newInstance();
             return newInstance.CreateVolunteer();
        }
}
public class Test {
    public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
//        使用工厂方法 
        IFactory undergraduateFactory = new UndergraduateFactory();
        LeiFeng createLeiFeng = undergraduateFactory.createLeiFeng();
        createLeiFeng.BuyRice();
        IFactory volunteerFactory = new VolunteerFactory();
        LeiFeng createLeiFeng1 = volunteerFactory.createLeiFeng();
        createLeiFeng1.BuyRice();
//        使用反射
        LeiFeng under = UnderReflection.CreateUnder();
        under.BuyRice();
        LeiFeng volunteer = VolunteerReflection.CreateVolunteer();
        volunteer.BuyRice();
    }
}