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Composite pattern

Theory

Composite objects in code

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Here's a simple example of composite pattern in pseudocode:

interface Catalog is
  method calculatePrice()


class СomputerParts implements Catalog is
  field hardware: array of Catalog
 
  constructor of СomputerParts ...

  method calculatePrice() is ...

  method addHardware() is ...


class Motherboard implements Catalog is
  constructor of CPU...
 
  method calculatePrice() is ...

Which of these classes are composite type?

Select one or more options from the list
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