The BlackBerry® Java® Virtual Machine on the BlackBerry® device includes an application manager that functions as the central dispatcher of operating system events for other BlackBerry device applications.

The net.rim.device.api.system.ApplicationManager class lets BlackBerry device applications interact with the application manager to perform the following actions:

• interact with processes, such as retrieving the IDs for foreground BlackBerry device applications
• post global events to the system
• run a BlackBerry device application immediately or at a specific time

• Retrieve information about a BlackBerry Java Application
  
• Communicate with another BlackBerry Java Application
  
• Determine the services that are available to a BlackBerry Java Application