Dialog Box Input Loop

Resources Links

Ajax
Articles
Bioinformatics-Tutorials
Database-Tutorials
Free Books
Hibernate-Tutorials
J2EE-Tutorials
J2ME-Tutorials
Java-Tutorials
JavaScript
JDBC-Tutorials
JMS-Tutorials
JSP-Tutorials
Linux-Tutorials
MS Technology
PHP
RMI-Tutorials
Servlets-Tutorials
Struts-Tutorials
Tools For Java Technology
UML-Tutorials
Web Graphics Designing
Web Hosting Tutorial
Web-Services-Tutorials

More Tutorials

JSP Tutorials
Hibernate Tutorials
Struts Tutorials
JSF Tutorials MySQL Tutorials
Spring Tutorials
EAI Tutorials
JAXB Tutorials
Web Services Tutorials
JDO Tutorials
Java Tutorials
Java Certification
Linux Tutorials
Java Servlets
WAP Tutorials
EJB Tutorials
JDBC Tutorials
Bio Informatics
Java Server Faces Java Interview Questions

Tutorial: Dialog Box Input Loop

Indicating end of input with cancel or close box, a special value, or empty input

Tutorial Details:

When reading input in a loop user must have some way of indicating that the end of the input has been reached.

Sentinal value. One way to indicate the end of the input is for the user to enter a special value to indicate that the end has been reached. This generally works, but does eliminate a possible value from the input. This may not be a problem in many cases, but it can be. A common special value is just the empty string.

Special signal - null. A better way to indicate the end of the input is often to do something special. For dialog box input, this could be clicking the close box or hitting the Cancel button. This is easy to test because a null value is returned in those cases.

Rate Tutorial: http://www.roseindia.net/java/java-tips/examples-introductory/dialog/dialog-input-loop.shtml

Read Tutorial at: Click here to view the tutorial

Rate Tutorial: Dialog Box Input Loop

View Tutorial: Dialog Box Input Loop

Related Tutorials:

Java gets serial support with the new javax.comm package - JavaWorld - May 1998
Java gets serial support with the new javax.comm package - JavaWorld - May 1998

Programming Java threads in the real world, Part 5 - JavaWorld - February 1999
Programming Java threads in the real world, Part 5 - JavaWorld - February 1999

Java Tip 72: Press Escape to close your Swing dialog windows
Java Tip 72: Press Escape to close your Swing dialog windows

Java gets serial support with the new javax.comm package
Java gets serial support with the new javax.comm package

Java Tip 85: Fun and games with JFileChooser - JavaWorld
Java Tip 85: Fun and games with JFileChooser - JavaWorld

Process XML with JavaBeans, Part 3 - JavaWorld January 2000
Process XML with JavaBeans, Part 3 - JavaWorld January 2000

Add a file finder accessory to JFileChooser - JavaWorld
Add a file finder accessory to JFileChooser - JavaWorld

Make room for JavaSpaces, Part 6 - JavaWorld October 2000
Make room for JavaSpaces, Part 6 - JavaWorld October 2000

Printing in Java, Part 2 - JavaWorld December 2000
Printing in Java, Part 2 - JavaWorld December 2000

Printing in Java, Part 3 - JavaWorld January 2001
Printing in Java, Part 3 - JavaWorld January 2001

Printing in Java, Part 4 - JavaWorld February 2001
Printing in Java, Part 4 - JavaWorld February 2001

Java security evolution and concepts, Part 5
Java security evolution and concepts, Part 5

Take command of your software
Take command of your software

Big designs for small devices
Big designs for small devices

Use select for high-speed networking
Use select for high-speed networking

Very interesting article
Very interesting article

Interesting ...
Interesting ...

Nice widget
Nice widget

Very interesting
Very interesting

Creating Wizard Dialogs with Java Swing
Wizard dialogs are ubiquitous in today's desktop applications. This article creates a framework for a simple wizard dialog, complete with Back, Next, and Cancel buttons that you can extend for use in your applications as necessary.

Site navigation