Behavioral Design Patterns in C++ - DialogBox - IV

Behavioral Design Patterns in C++ - DialogBox - IV

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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The video tutorial explains the interaction between widget classes and the issues of tight coupling, which makes reuse difficult. It introduces the mediator design pattern to decouple these classes, using the dialog as the mediator. The tutorial covers modifying widget classes, implementing the command interface, handling events, and simulating user actions. It concludes with a comparison of class diagrams, highlighting the benefits of the mediator pattern in reducing dependencies and enhancing reusability.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of using inheriting constructors in the widget subclasses?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how the command interface is implemented in the dialog class.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the class diagram change when using the mediator pattern compared to the earlier application?

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