Hour 8. Declaring Instance Variables in an Interface File
What You’ll Learn in This Hour
• Creating an instance variable for a class instance
• Using id
• Working with static typing
• Using variable scoping
Declaring Instance 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. This hour explores the use of instance variables. In the next hour, Hour 9, “Declaring Properties in an Interface File,” you find out how to use properties to accomplish the same results. With declared properties, the compiler actually generates the declarations you see in ...
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