Behavioral Design Patterns in C++ - Lamp - IV (Yellow State)

The video tutorial explains how to add a new state, 'yellow', to a lamp using the state pattern. It highlights the simplicity of adding new states without modifying existing code, but also points out the issue of tight coupling between state classes. The tutorial suggests using a factory method to reduce dependencies, which will be covered in the next lecture.

What is the significance of adding a new state to the lamp?

What changes need to be made to transition the lamp from yellow to white state?

Explain the issue of tight coupling between the state classes in the lamp project.

How can the dependency between state classes be reduced according to the text?

Describe the role of the factory method in the context of the lamp project.