1. Customize user's working directory
By default, JDeveloper’s user directory is the \system subdirectory of the <JDev_Home>
directory, such as C:\Oracle\Middleware\jdeveloper\system—that is, where it
stores user preferences, such as information about the appearance of the IDE. If you want to use
a different directory, start JDeveloper with the –J-Dide.user.dir flag. For example -
"F:\SOASuite11gR1PS2\JDeveloper\jdeveloper\jdeveloper.exe -J-Dide.user.dir=F:\mywork"
Add following flag to shortcut "-J-Dide.user.dir=<path>"
2. If you don't want to IDE to open the last time opened files, add following flag.
-noreopen
3. When you open SqlWorksheet in Jdeveloper, it prompts to save the sql file. To avoid that follow below instruction
