Does creating a lot of private variables that may never be used increase file size and or memory usage of your application?
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Does creating a lot of private variables that may never be used increase file size and or memory usage of your application?
Probably not (assuming that by not using them you aren’t giving them any values, or if you are giving them values that those values aren’t huge objects), but why confuse yourself and anyone that follows up on your code? You shouldn’t have a variable unless you’re going to use it.