In case someone comes here looking for the location of user-configurable options like me, they are hiding here:
%appdata%\SQL Developer\
It is useful to know when copying your settings to a new computer. If you are looking for connection parameters, find connections.xml in this directory. There are also some other configuration files here:
sqldeveloper.conf – <sqldeveloper dir>\sqldeveloper\bin\ ide.conf – <sqldeveloper dir>\ide\bin\
This is for Oracle SQL Developer 3.
Amit naidu
source share