Behavioral Design Patterns in C++ - Spreadsheet Application - I

The lecture demonstrates implementing the strategy pattern in a spreadsheet application. It covers creating a data model class to manage integer data, implementing methods for adding, displaying, saving, loading, and exporting data. The export functionality is extended to CSV format, and future enhancements for HTML export are discussed.

What is the primary purpose of the Data Model class in the spreadsheet application?

• To manage user interface elements

• To handle data input and storage

• To perform complex calculations

• To export data to external databases

Which method in the Data Model class is responsible for adding a new row of data?

• add row

• load

• display

• export

What is the role of the save method in the Data Model class?

• To delete data from the vector

• To display data on the screen

• To write data to a file

• To import data from a file

How does the load function read data from a file?

• By using an input filestream and string stream

• By directly accessing the file system

• By using a vector of strings

• By using a database connection

What format does the export function initially support for exporting data?

• XML

• JSON

• HTML

• CSV

What is the purpose of testing the implemented functions by running the program?

• To verify data is correctly saved and loaded

• To check the speed of the application

• To ensure the user interface is responsive

• To test the network connectivity

What future enhancement is discussed for the Data Model class?

• Implementing a graphical user interface

• Adding support for XML export

• Integrating with cloud storage

• Exporting data in HTML format