Suppose I have a date, i.e. year, month and day, as integers. What's a good (correct), concise and fairly readable algorithm for computing the ISO 8601 week number of the week the given date falls into? I have come across some truly horrendous code that makes me think surely there must be a better way.

I'm looking to do this in Java but psuedocode for any kind of object-oriented language is fine.

java date
Edit
Report