Explain some of the Creational Design Patterns ?

• Creational Design Patterns are design patterns that deal with object creation mechanisms, trying to create objects in a manner suitable to the situation.
• Singleton design pattern is a creational design pattern that lets you ensure that a class has only one instance, while providing a global access point to this instance.
• Builder design pattern is a creational pattern that separates the construction of a complex object from its representation, allowing the same construction process to create different representations. It is particularly useful when an object has a large number of optional parameters or when its construction involves a complex, step-by-step process.
• Prototype design pattern is a creational pattern that creates new objects by copying an existing object, known as a prototype. This is beneficial for complex or costly object creation, as it's more efficient to clone a pre-configured prototype than to build a new object from scratch. To implement it, you create a Prototype interface with a clone() method that concrete classes implement to copy themselves.
• Factory design pattern is a creational pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact classes. Rather than by calling a constructor, this is accomplished by invoking a factory method to create an object. Factory methods can be specified in an interface and implemented by subclasses or implemented in a base class and optionally overridden by subclasses.