What is the convention to use boolean for gender in programming languages? true male false female? [closed]

问题

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.

Closed 8 years ago.

[Edit] Sorry I mean no offence to women, this question troubled me several times. I just like to know a conventional or universal way (in both database and... other programming languages). Thank you.

Is there a conventional way to show gender using boolean?

Are they the same in all languages? JAVA, C, Objc, databases?

I guess we should use true (1) for male and false (0) for female?

Thank you.

回答1:

true (1) for male and false (0) for female

回答2:

If you want to use a boolean it might be a good idea to call your variable either isMale or isFemale rather than just gender to make it clear what the value true means.

However in many countries it is not legal to require people to disclose their gender if they don't wish to, so you may have to use an enum with three values:

Female
Male
Unknown

回答3:

What's wrong with a single character, containing one from the set {'m','f','n'} for male, female and not applicable?

I'm sure you're not that hard up for space that you need to pack all your genders into bitmaps.

来源：https://stackoverflow.com/questions/8005681/what-is-the-convention-to-use-boolean-for-gender-in-programming-languages-true