Configuring Preferences
To configure preferences to support UTF-8:
On JDeveloper, select the Applications folder or any project folder and then select Preferences from the Tools menu.
On Preferences, select Environment.
In the Environment pane, select UTF-8 from the Encoding drop-down list box.
Click OK.
All projects in the workspace show UTF-8 as the value for the Encoding field when you select Preferences from the Tools menu.