FAQ: Variables - User Input


This community-built FAQ covers the “User Input” exercise from the lesson “Variables”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise User Input

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When do we include “return 0;” and when is it okay to omit it?


What is the purpose of the return 0?


Why are we always creating a new line with “\n” when there is nothing happening with that new line after? Is it a good habit to have?


Hello hh1077,

We use -return- for return a value from a function, in this case the function is -main- that returns zero value -return 0;-, but you will understand this point when you take the “functions” topic, don’t worry about that.




The program didn’t output anything when I typed in my tip. The machine says my code works but still nothing is outputted: