Using time within an EJB
Time is a complex topic with many aspects of time being beyond the scope of this book. Within this recipe, we will examine several common problems that can occur when working with time in a Java EE application.
To use time in a Java application we normally use a
Date instance in conjunction with a
Calendar instance. The
Date object represents a time while the
Calendar instance maps it to a specific calendar system.
Normally we will use the
DateFormat or a
DateFormat derived class to convert a time into a string for display purposes. While the use of these classes appears straightforward, there are several areas where a developer can go astray.
Time is represented using an instance of the
Date class. However, ...