Float letter to specify JNI parameter types?

to add android sdk functionallity, i want to write java function in GameActivity.java and wrap it in AndroidJNI.cpp.

in FJavaWrapper::FindClassesAndMethods() (AndroidJNI.cpp), the parameters and returns of the wrapped functions are specified by different letters, accordingly to the types: Z for boolean, V for void, J for long, Ljava/lang/String; for string,…

what is the letter to specify a float?


Looks like F: