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i need to Implement at least five design patterns in java

i need to Implement at least five design patterns in java ( Singleton, Factory, Façade, state,staratege) in the application. How can I do it

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Singleton Pattern

  • Singleton pattern is the simplest design pattern in Java that come under the Creational Pattern Category.
  • This pattern involves a single class that is responsible to create an object while making sure that only a single object gets created.
  • This class provides a way to access its only …

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