The compiler allows you to type in the code almost any way the programmer sees fit. Output style is a whole different matter. This is your link to the user and this may be the most difficult task in software creation. A long time ago when systems were being designed, programmers used two digits to represent the year, which resulted in the recent Y2K crisis. But their lack of future vision caused great expense and concern.
Most programmers think in the present and past while ignoring the future.
The code you are so familiar with today will be foreign to you in several years. Comments can be a disaster if not done correctly. I have yet to meet a programmer that either liked to type them or really paid that much attention to them. Properly placed comments are mandatory to allow for future maintainability. By far the hardest thing for a new programmer to understand is good variable naming.