What is the primary reason for storing the overwritten text before making changes?
Behavioral Design Patterns in C++ - Undo - IV

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To save memory space
To improve text formatting
To allow for future undo and redo operations
To ensure the application runs faster
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the substring function in the overwrite process?
To change the text color
To extract the text to be overwritten
To increase the text size
To format the text
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the remove command, what are the two key attributes that need to be stored?
The index and the removed text
The application version and user ID
The text color and font size
The text alignment and spacing
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of storing the bold attribute in the set bold command?
To change the font style permanently
To allow toggling between bold and non-bold states
To ensure the text is always bold
To facilitate undo operations
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which attribute is crucial to store when implementing the set color command?
The text size
The font style
The color itself
The text alignment
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is a stack data structure used for implementing undo and redo functionalities?
It is the most memory-efficient structure
It automatically sorts commands
It allows for random access of commands
It simplifies the process of reversing actions
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the implementation of the set color command handle code duplication?
By using a different programming language
By using a loop to repeat code
By creating a separate function for color replacement
By ignoring the duplication
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