Trying to understand the logic of void

[jmartins]

As I am working through this I'm getting an understanding but when it gets to the void area I am stuck.  It says in the book "If the method returns no value, you indicate that using the type void"

My understanding is when you run this program it prints the fraction of 1/3 on the screen.  Is that not a value being returned if its being displayed ? 

It works and still displays it so my difficulty is understanding why is printing on the screen not considered a value being returned ?

[fujilla]

Although I only have the 3rd edition, the chapters pretty much follow the same flow I believe, therefore:

Looking at Program 3.4, when it prints to the log "The value of myFraction is 1/3", the numerator and denominator values which are being displayed actually come from the getter methods which return "int" values, not "void" values:

Code: (Objective-C)

NSLog (@"The value of myFraction is: %i/%i", [myFraction numerator], [myFraction denominator]);

Nick
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