Each PersistentObject has a unique long key.

1. Import the required classes and interfaces.

   import net.rim.device.api.system.PersistentObject;
   import net.rim.device.api.system.PersistentStore;
   import java.lang.String;
   import net.rim.device.api.ui.component.Dialog;

2. To create a unique long key, in the BlackBerry Integrated Development Environment, type a string value. For example, com.rim.samples.docs.userinfo
3. Right-click the string and click Convert ‘com.rim.samples.docs.userinfo’ to long.
4. Include a comment in your code to indicate the string that you used to generate the unique long key.
5. To create a persistent data store, create a single static PersistentObject and invoke PersistentStore.getPersistentObject, using the unique long key as a parameter.

   static PersistentObject store;
   static {
   store = PersistentStore.getPersistentObject( 0xa1a569278238dad2L );
   }