The Java Date class keeps track of those milliseconds as a long value. Because long is a signed number, ... the ReviewDates class does show how to calculate dates based on elapsed time.

The Due Date Calculator is a Java-based command-line tool. This application calculates due dates and times based on user input, taking into account working hours and working days ...

This application calculates Easter date for a year given by the user. It is written using Java FX, requires at least Java 8 and runs locally. For years starting with 1583, the application returns both ...