Re: Java RPN app for cell phone Message #4 Posted by Chris Dreher on 13 Oct 2012, 4:29 p.m., in response to message #1 by Peter Klein
Most likely, this phone is a MIDp or BREW based phone. If it were iPhone, Android, Blackberry, or Windows Phone then one of those names would be easily found on the Internet associated this phone's model number. Usually when the OS name is very hard to find, the OS is MIDp or BREW (often listed on the Internet as "proprietary").
I don't know if there are any RPN apps available for this phone. However, as a mobile app developer I can say that MIDp and BREW are painful for developers to develop for and difficult for end-users to find and install applications. Apps that work on one MIDp phone model may not install or work on another (ditto for BREW phone apps). While some of this might have eased up in the last couples years, such phones have few apps available for them if any. Often, these phones are only capable of doing the functionality they shipped with.
In short, there might be a MIDp or BREW calculator app that does RPN. You will have to find out if it is MIDp or BREW based first. If there is an app, then you might be able to install it on the Samsung S390G, but there are no guarantees. Also, there is a remote chance that the phone ships with a calculator built-in that allows for RPN mode (in my experience, this is rare).
I'm not trying to scare you away from this phone; just trying to set expectations.
Good luck.
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