Behavioral Design Patterns in C++ - Template Method - II

The video tutorial explains the concept of template methods in programming, focusing on the implementation of read and write data methods instead of overriding load and save methods. It discusses managing different versions of documents and highlights the benefits of using template methods to avoid code duplication. The tutorial also compares the template method pattern with the strategy design pattern, emphasizing the customization points provided by hook methods.

Why can't the 'load' and 'save' methods be overridden in the text document?

• They are deprecated.

• They are not implemented yet.

• They are template methods.

• They are private methods.

What is the purpose of adding a member to store version information in the document?

• To improve document security.

• To manage different versions of the document.

• To enhance document readability.

• To track changes in the document.

What are hooks in the context of template methods?

• Optional methods that can be overridden by child classes.

• Methods that must be implemented by all subclasses.

• Methods that are used for debugging purposes.

• Methods that are fixed and cannot be changed.

Which of the following is a fixed step in the template method algorithm?

• Read version

• File dialogue

• Write data

• Read data

How do template methods help in avoiding code duplication?

• By allowing each subclass to implement its own version of the method.

• By implementing the code once in the template method and reusing it in child classes.

• By storing all code in a single file.

• By using external libraries to handle common tasks.

How does the template method pattern differ from the strategy design pattern?

• The template method pattern varies the entire algorithm.

• The strategy pattern allows for no variation in the algorithm.

• The template method allows variation at specific points, unlike the strategy pattern.

• The strategy pattern is used for UI design.

What is the main benefit of converting 'load' and 'save' into template methods?

• It increases the execution time.

• It allows for more customization by subclasses.

• It makes the code more complex.

• It avoids duplication of boilerplate code.