Learn in 1 Hour: Design Patterns | The JetBrains for Education Blog - Deepstash
Learn in 1 Hour: Design Patterns | The JetBrains for Education Blog

Learn in 1 Hour: Design Patterns | The JetBrains for Education Blog

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🕐 Factory method is a pattern that creates an interface or abstract class that also allows for modification of object creation in subclasses. It is best used when the developer doesn’t know beforehand the exact types and dependencies of the objects the code should work with.


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🕐 Singleton is a pattern that creates only one instance of an object while providing a point of global access to this instance. This pattern should be implemented when a class in the program has only a single instance available to all clients.


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🕐 Prototype is a pattern based on the concept of copying an existing object for creating a new one. It is used to reduce the number of subclasses that differ only in the way they initialize their objects.


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🕐 Builder is a pattern that lets developers design complex objects by using simple objects via a step-by-step approach. This allows creating different modified variations of the same object.


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🕐 Abstract factory is a pattern that produces sets of related objects. In its simplest form, it could be a set of factories that allows developers to produce parts of object sets.


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