Q. Which of the following describes the Command pattern correctly? (Solved)

1. in this pattern a class represents functionality of another class.

2. this pattern creates a chain of receiver objects for a request.

3. this pattern provides a way to evaluate language grammar or expression.

4. in this pattern a request is wrapped under an object as command and passed to invoker object.

  • d. in this pattern a request is wrapped under an object as command and passed to invoker object.
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