设计模式之工厂模式之简单工厂模式（一）

public class FactoryTest {

public static void main(String[] args) {
SendFactory factory = new SendFactory();
Sender sender = factory.produce("sms");
sender.Send();
}
}

interface Sender {
public void Send();
}

class MailSender implements Sender {
@Override
public void Send() {
System.out.println("this is mailsender!");
}
}

class SmsSender implements Sender {

@Override
public void Send() {
System.out.println("this is sms sender!");
}
}

class SendFactory {

public Sender produce(String type) {
if ("mail".equals(type)) {
return new MailSender();
} else if ("sms".equals(type)) {
return new SmsSender();
} else {
System.out.println("请输入正确的类型!");
return null;
}
}
}