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;  
        }  
    }  
}  

结果：

this is sms sender!