JRAP: Java Random Access Parser.
This is the port of RAP to java. The jrap package is contained in the jrap.jar file. This file can just be added to your classpath to use the code in there, you can run it as an executable jar ("java -jar jrap.jar") to get guidelines on how to run the graphical spectrum viewer or you can just unpack the archive by running "jar xf jrap.jar" to take a look at the source code. There's also a readme.txt file in the root directory of the jar file.
JRAP API local documentation on this site.
Read JRAP API
from the Sashimi project code repository: http://sashimi.svn.sourceforge.net/viewvc/sashimi/trunk/jrap/