1. Which design pattern lets you define a new operation without changing the classes of the elements on which it operates? A) Visitor B) Command C) Decorator D) Chain of Responsibility 2. Which design pattern decouples the object that invokes the operation from the one that knows how to perform it? A) Command B) Strategy C) Visitor D) State 3. Which pattern to use when more than one object can handle a request and the handler is unknown? A) Chain of Responsibility B) State C) Visitor D) Command

1. Which design pattern lets you define a new operation without changing the classes of the elements on which it operates? A) Visitor B) Command C) Decorator D) Chain of Responsibility 2. Which design pattern decouples the object that invokes the operation from the one that knows how to perform it? A) Command B) Strategy C) Visitor D) State 3. Which pattern to use when more than one object can handle a request and the handler is unknown? A) Chain of Responsibility B) State C) Visitor D) Command

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter8: Arrays

Section: Chapter Questions

Problem 7PE

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