What are the differences between various creational design patterns?

What are the main differences between the Singleton and Factory design patterns?

The Singleton pattern ensures a class has only one instance and provides a global point of access. In contrast, the Factory pattern creates objects without specifying the exact class of object that will be created.

Can you give me an example of when to use the Builder pattern?

The Builder pattern is useful when you need to construct a complex object step by step. For instance, when creating a meal with multiple components, you can use a builder to add each component individually.

How does the Prototype pattern differ from the others?

The Prototype pattern allows for creating new objects by copying an existing object, known as the prototype. This is different from other patterns that focus on instantiation or creation through factories.

Which creational pattern is the most commonly used?

The Factory pattern is one of the most commonly used creational patterns due to its flexibility and ease of use in object creation.