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<google>BUY_OBJC</google>
In the chapter entitled [[An Overview of Objective-C Object Oriented Programming]] we covered the basic concepts of object-oriented programming and worked through an example of creating a new class using Objective-C. In that example, our new class was derived from the NSObject base class and as such inherited a number of traits from that parent class. In this chapter we will explore the subject of inheritance in greater detail.
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<google>BUY_OBJC_BOTTOM</google>
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