Behavioral Design Patterns in C++ - Methods for States - I

The video tutorial explains the state pattern, which is useful for objects whose behavior changes based on their state. It describes how to split an object into multiple objects, with the main object holding the state, known as the context, and other classes implementing the behavior. The tutorial also covers a table-based approach for handling complex state transitions and introduces methods for states, where behavior is realized as internal functions within a single object. This approach can work with non-object-oriented languages.

What is the main object called in the state pattern that holds the state?

• Transition

• Behavior

• Context

• State

How are state transitions implemented in the state pattern?

• Through conditional statements

• By the context object

• By the state objects themselves

• Using external libraries

What does the table-based approach map in the state pattern?

• State and event to the next action

• Event to the context

• Action to the state

• State to the context

In the methods for states variation, how is behavior realized?

• Using global variables

• As internal functions within a single object

• As external functions

• Through multiple objects

What type of value can represent the state in the methods for states variation?

• Only objects

• Only integers

• Only strings

• Any type such as enum, integers, or strings