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Alex Rivera
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What is an actual name of instance variable, say, topSpeed, as from lectures of Stanford University about the Objective-C and iOS development? Here is the code: @property (nonatomic) double topSpeed; Looking at this code I will think that I have defined a variable topSpeed in the class. I can't understand why it will declare automatically the getter method with the name the same as the variable name - topSpeed? Another question is when we use @synthesize topSpeed = _topSpeed And if we look at what the @synthesize will generate: - (double) setTopSpeed:(double)speed { _topSpeed = speed; } - (double) topSpeed { return _topSpeed; } What is _topSpeed here and what is topSpeed? I have declared a variable topSpeed, not the _topSpeed. What if I don't use property what would the variable name be?
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