When do you have to use @property and @synthesize in the iPhone SDK? -

You have to use when @property and @synthesize IPhone SDK? And why use @property and @ synthesis ? I was studying the property, but I can not find the right idea.

@property: This is used when you use it:

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You can actually create useful generating codes such as nonatomic, atmoic, without writing any line of code. You have gotter and setter methods too To use it, you have 2 other ways: @ synthesize or @dynamic: @ synthesize, the compiler will automatically generate recipients and setter for you, @dynamic: you have to manually would write.

@Property is really good for memory management, for example: Maintaining

How can you maintain without a property?

  if (_variable! = Object) {[_variable release]; _variable = zero; _variable = [object maintenance]; }  

How can you use it with a @ property?

  self.variable = object;  

When you are calling up the line, you actually call the Setter [Auto SetValue: Object] and then the Generator Setter will do your job