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What is optional package ?
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Answer / b.chandra sai mohan
Optional Api is used to provide additional functionality
that can be included for a configuration or profile.
possible future stack will be CLDC1.1/MIDP2.0+MMAPI.
Ex: MMAPI,javax.microedition.lcdui.game,will come under
optional API
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Answer / guest
An optional package is a set of J2ME APIs providing services
in a specific area, such as database access or multimedia.
Unlike a profile, it does not define a complete application
environment, but rather is used in conjunction with a
configuration or a profile. It extends the runtime
environment to support device capabilities that are not
universal enough to be defined as part of a profile or that
need to be shared by different profiles. J2ME RMI and the
Mobile Media RMI are examples of optional packages.
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Java J2EE 
