Multiple choice technology

Which one of the following import is invalid regarding blackberry API's?

  1. import net.rim.device.api.ui.MenuItem;

  2. import net.rim.device.api.ui.component.LabelField;

  3. import net.rim.device.api.ui.component.Menu;

  4. import net.rim.device.api.ui.UiApplication;

  5. none of the above

  6. import net.rim.device.api.ui.component.RichTextField;
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

All the listed imports are valid BlackBerry API imports. MenuItem and Menu are from net.rim.device.api.ui, LabelField and RichTextField are from net.rim.device.api.ui.component, and UiApplication is from net.rim.device.api.ui. These represent standard classes for UI development in the BlackBerry Java development environment.

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