Interface ,Implements e herança

public interface Imessage 
{
	
}

//Classe abstrata e ira implementar 
abstract class AbstractMessage implements Imessage
{
}

//Duas Classes que ira herdar AbstractMessage
public class MmsMessage extends AbstractMessage
{
	private String	imgCat = "Cat.jpg";
	private String  soundAlert = "Alert Alert ";
	private String  soundCar = " Vrummm Vrummmmmmm";
	private String  soundExplosion = "Bbbuuuuummmmmm";

	public String getImgCat() {
		return imgCat;
	}
	
	public String getSoundAlert() {
		return soundAlert;
	}
	
	public String getSoundCar() {
		return soundCar;
	}
	
	public String getSoundExplosion() {
		return soundExplosion;
	}

}

public class SmsMessage extends AbstractMessage
{
	private String msgLove = " I love you ";
	private String msgConnectionLost = "You have missed calls";
	private String msgAlert = "Attention";
	private String msgOfBusy = "I'm busy";

	public String getMsgLove() {
		return msgLove;
	}
	
	public String getMsgConnectionLost() {
		return msgConnectionLost;
	}
	
	public String getMsgAlert() {
		return msgAlert;
	}
	
	public String getMsgOfBusy() {
		return msgOfBusy;
	}
}

// e uma classe que ira processar uma menssagem e imprimi-la na tela
public class MessageProcessor 
{
	
	public String process(Imessage msg)
	{
		
	}
}