By default, Eclipse is set to use cp1252 as the character encoding which is a Latin1 code page. This is suitable for all the Latin languages on Windows Operating System. However, if you wish to use LETSJ as the default character set, then do the following:
Go to Windows > Preference
The Preferences page opens.
On the Preference page, expand General and select Workspace.
In the Text File Encoding group
Select Other.
From the drop-down list, select LETSJ.
Click Apply and then click OK.
Eclipse is set to use LETSJ encoding type.