Question: If design patterns are so great, why cant someone build a library of them so I dont have to? Arent libraries and frameworks also design

If design patterns are so great, why cant someone build a library of them so I dont have to? Arent libraries and frameworks also design patterns? Also, What is the way to implement a thread-safe Singleton design pattern in Java? Also discus, some examples of Factory Method design pattern implementation in Java.

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