Setting the default file encoding in Eclipse and JBoss Developer Studio

If you're developing web applications (especially in Java using JSF) using Eclipse or JBoss Developer Studio, you may want to set the default encoding to UTF-8 for displaying characters like 'ç', 'ş', 'ğ', 'ı', etc. correctly in your application whether these characters are hard-coded in some xhtml, jsp or a .java source file, or even when read or written from/to a database.