I am a novice level programmer, with Objective C / iOS dev being my first language aside from some moderate VBA.
I am still in the process of getting my head properly wrapped around the appropriate use of pointers. My question: When we are setting up the four instance variables in BNRItem.H, why is the int valueInDollars a locally stored value? As opposed to a reference to a value that is set somewhere else.
What I am trying to understand is when to use pointers and when is appropriate to use values. So is the example in the book because of a general principle on how to treat integers, or is it that way to provide an example of a locally stored value vs. pointers to values? The setter / getter methods are handled similarly for the pointers to NSStrings as for this INT so I don’t see the requirements difference.
I hope this is explained correctly here, any clarification (explained like you were talking to a dog or small child) would be much appreciated
Bonus newbie question
When I am mentally considering pointers, is the use of references in excel a basic appropriate comparison? Excel references as in saying a cells value should always equal what is in cell B1, instead of the value “3.14”. I understand there is a lot more to it than this, but as far as getting the general concept of pointers in Objective C straight in my head that is where I am at now.