Linked Questions

Possible Duplicates: Factory Pattern. When to use factory methods? Why do static Create methods exist? Though I know what is Factory Design Pattern. But I am unable to comprehend what are the ...

I am a student and I had this question asked in my viva voce today and I hadn't even heard about it before. I have searched over the internet about it and I always found the results to be very ...

Lighten a specific aspect of: Factory Pattern. When to use factory methods? At my team there was a discussion about the factory design pattern. In our project we have some Factories that are ...

The factory method is used to avoid violation of Open-closed principle. Instead of creating an object by inheritage: Product myProd = new ConcreteProduct1; // concreteProduct extends abstract product ...

I can appreciate the value of factory methods, but I'm struggling with the value of using dedicated factory classes. This will work: class Brady { int age; String name; static Brady ...

What exactly is the difference between an interface and an abstract class?

In one of my interviews, I have been asked to explain the difference between an Interface and an Abstract class. Here's my response: Methods of a Java interface are implicitly abstract and ...

Java 8 allows for default implementation of methods in interfaces called Default Methods. I am confused between when would I use that sort of interface default method, instead of an abstract class (...

I keep coming across this term: Program to an interface. What exactly does it mean? A real life design scenario would be highly appreciated.

I'm trying to succinctly describe when to use a factory, for both myself and my team. I ran across the following related questions, which helped somewhat: When to use factory patterns? (useful pdf ...

I'm trying to create a really simple Factory Method design pattern example in Java. I don't really know Java, I am new to programming in general but I need to come up with a a basic FactoryMethod ...

I'm new to unit testing and PHPUnit, but I've reading a lot lately about design patterns and isolated tests and I've decided to refactor an application I'm working on to get rid of static classes, ...

[MAJOR EDITS, my first post was somewhat misleading. My appologies] Given a class such as: public class DatabaseResult{ public bool Successful; public string ErrorMessage; //...

I was going through a Java code and I saw that objects have been allocated using some interface and this interface contains some methods to allocate objects using new operator. I am unable to think ...

I'm sure there's some solution or pattern to this but i'm having trouble articulating the question to find the right answer. I have an interface, ICar: public interface ICar { void SetMake(String ...