Jasper Text Field Expression

How to do Text Field Expression in Jasper when I have more than one condition checking to output the textField?
Example...
I might have applicationResour
ceKey "key1","key2","key3", and i need to display it as "keyValue1","keyValue2","keyValue3"

Code

($F{key}).equals("key1") ?
"keyValue1" :
($F{key}).equals("key2")?
"keyValue2":
($F{key}).equals("key3")?
"keyValue3":
"-"