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Chapter: 7 / Q: 21
Update your Sales_data class to hide its implementation. The programs you’ve written to use Sales_data operations should still continue to work. Recompile those programs with your new class definition to verify that they still work
Chapter: 7 / Q: 22
Update your Person class to hide its implementation
Chapter: 7 / Q: 23
Write your own version of the Screen class
Chapter: 7 / Q: 25
Can Screen safely rely on the default versions of copy and assignment? If so, why? If not, why not
Chapter: 7 / Q: 26
Define Sales_data::avg_price as an inline function
Chapter: 7 / Q: 27
Add the move, set, and display operations to your version of Screen. Test your class by executing the following code
Chapter: 7 / Q: 28
What would happen in the previous exercise if the return type of move, set, and display was Screen rather than Screen&
Chapter: 7 / Q: 29
Revise your Screen class so that move, set, and display functions return Screen and check your prediction from the previous exercise
Chapter: 7 / Q: 30
It is legal but redundant to refer to members through the this pointer. Discuss the pros and cons of explicitly using the this pointer to access members
Chapter: 7 / Q: 31
Define a pair of classes X and Y, in which X has a pointer to Y, and Y has an object of type X
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