Applicable scenarios for the adapter pattern include: 1. You want to use an existing class, but its interface does not meet your needs; 2. You want to create a class that can be reused, and the class can be changed with Other unrelated classes or unforeseen classes work together; 3. You want to use some existing subclasses, but it is impossible to subclass each one to match their interface.
Adapter pattern
Converts the interface of a class into another interface that the client wants. The Adapter pattern enables classes that would otherwise not work together due to incompatible interfaces to work together
Applicability
You want to use an existing class, and its interface does not meet your needs
You want to create a reusable class, and the modified class can be compatible with other unrelated classes or unforeseen (may be incompatible ) classes work together
You want to use some existing subclasses, but it's not possible to subclass each one to match their interface
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