30 sec Real Estate Analyzer

The 30 sec Real Estate Analyzer has been updated to include more calculations to help you with your real estate investment decisions. The latest version includes calculations for Gross Rent Multiplier, Break Even Ratio, Net Operating Income and more.

You can download it now at BlackBerry App World.

Choosing the right JDE to develop your blackberry apps

When creating and building your application, it is important to choose the correct version of the BlackBerry JDE to make sure that the application is compatible with the target BlackBerry smartphones. Applications built in the BlackBerry JDE are forward-compatible with newer BlackBerry Device Software versions, but they are not backward-compatible with older versions.




For example, an application built in BlackBerry JDE 4.1 runs on a BlackBerry smartphones running BlackBerry® Device Software 4.1 and later. It does not run on a BlackBerry smartphones running BlackBerry Device Software 4.0. Thus, when building applications, you should use a BlackBerry JDE version that matches the lowest version of BlackBerry Device Software you want to support.



Note: To verify the version of BlackBerry Device Software installed on the BlackBerry smartphone, select Options > About.

First BlackBerry App

In this tutorial I will show you the following:
• How to setup and configure new BlackBerry project,
• How to create classes,
• Some details about UiApplication and MainScreen,
• How to write a Hello World application and
• How to run your application in simulator.
Please note that you can always find more information about the APIs we are using in BlackBerry
API reference document, which is the part of any JDE Component Pack (Figure 2). You can find it on
your computer under Start / Programs / Research in Motion / BlackBerry JDE 4.x.

To setup your new BlackBerry project:
1. Click on File/New/Project menu.
2. Select BlackBerry project.
3. Click Next.
4. Chose Project name and location
5. Enter the project name, i.e. “Hello World“.
6. Select your location or use a default one to store your project.
7. Click Finish.