abstractfactory

The abstract factory pattern provides a way to encapsulate a group of individual factories that have a common theme without specifying their concrete classes.

Here is the Java code example:

interface Provider

public interface Provider {
    public Sender produce();
}

interface Sender

public interface Sender {
    public void send();
}

class SmsSender

public class SmsSender implements Sender {
    @Override
    public void send(){
        System.out.println("This is createtypepattern.builder.SmsSender");
    }
}

class MailSender

public class MailSender implements Sender {
    @Override
    public void send(){
        System.out.println("This is Mailsender");
    }
}

class SendMailFactory

public class SendMailFactory implements Provider{
    @Override
    public Sender produce(){
        return new MailSender();
    }
}

class SendSmsFactory

public class SendSmsFactory implements Provider{
    @Override
    public Sender produce() {
        return new SmsSender();
    }
}

Then do the test

public class MailSender implements Sender {
    @Override
    public void send(){
        System.out.println("This is Mailsender");
    }
}