March 2002
Intermediate to advanced
480 pages
18h 40m
English
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Name
DateField
Synopsis
This class is an Item that displays and allows the user to
edit the value of a date, a time or both date and time, held internally
as a java.util.Date object. Like all Items,
DateField can have a label that is displayed near to it to indicate
its function.
The input mode, which
can be one of DATE, TIME, or DATE_TIME,
determines which parts of the Date object associated with the
DateField are displayed for editing. It can be set at construction
time or by calling the setInputMode() method.
By default, the DateField is initialized with a null
date and time value. An explicit date and time can be set using the setDate()
method, which requires a Date object containing the new value. If the
DateField is in DATE, the time portion of the
Date object is ignored. If it is in TIME mode,
the date portion must be set to Jan 1st, 1970.
The date is displayed according to the default time zone for the device. A different
time zone can be specified by passing a suitable TimeZone object to
the constructor. However, the MIDP specification does not provide full support for
time zones and therefore some restrictions on the available time zones might be encountered
on some devices.
When the user interacts with the DateField and changes its value, the
ItemStateListener for the Form on which the control
appears is notified. The new date and time can be retrieved using the getDate()
method.
public class DateField extends Item {
// Public Constructors
public DateField( String ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.