Date, Time and Calendar Classes

<< JDK (Java Development Kit) Tutorials

This chapter provides tutorial notes and example codes on JDK date, time and calendar classes. Topics include using java.util.Date to measure date and time; using java.util.Calendar and sub-classes to manage calendar information; using Calendar.add() method to manipulate calendar elements.

java.util.Date - JDK Class to Measure Date and Time

java.util.Calendar - The Abstract Calendar Class

java.util.Calendar.add() - Calendar Manipulation Method

Conclusion:

• java.util.Date class allows you to measure date and time.
• java.util.Calendar is an abstract class that provides support to various concrete class.
• java.util.GregorianCalendar is a concrete class allows you to work with Gregorian calendar.

Sample programs listed in this chapter have been tested with JDK 1.3.1, 1.4.1 and 1.5.0.