Behavioral Design Patterns in C++ - Lamp - II (Enum States)

The video tutorial discusses managing the state of a lamp using different methods, such as integers, booleans, and enums, with a focus on using enums for clarity. It explains how to implement state changes and handle user interactions, like turning the lamp on and off. The tutorial also addresses integrating new features, such as changing the lamp's color, and highlights the challenges of managing complex state changes, suggesting the use of the state design pattern for better management.

Which of the following is NOT a method mentioned for representing the state of a lamp?

• Using a string

• Using an enum

• Using a boolean

• Using an integer

What is the default state of the lamp when using an enum?

• Yellow

• White

• Off

• On

What message is displayed when the lamp is turned on again while already on?

• Error: Invalid state

• Switching to yellow

• Already on

• Lamp is now off

What new feature is introduced for the lamp in the third section?

• The lamp can change to blue

• The lamp can blink

• The lamp can change to yellow

• The lamp can dim

What design pattern is suggested to manage the new lamp feature?

• State design pattern

• Factory pattern

• Observer pattern

• Singleton pattern