Hour 9. Declaring Properties in an Interface File
What You’ll Learn in This Hour
• Determining when to use declared properties and when to use instance variables
• Exploring attributes for declared properties
• Using declared properties to manage memory
• Backing declared properties with instance variables
Comparing Interface Variables and Properties
There are two ways of declaring the data elements that are part of a class. You can declare them as instance variables in the same way that you declare integers and floats. You can also declare them as properties of the class. The previous hour, Hour 8, “Declaring Instance Variables in an Interface File,” explored the use of interface variables. In this hour, you see how to use properties to accomplish ...
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