Java Security

I'm trying to do public key encryption using the RSA Algorithm. When I try to create a cipher using

Cipher c = Cipher.getInstance("RSA", "SunJCE");

or

Cipher c = Cipher.getInstance("RSA");

I get the Exception java.security.NoSuchAlgorithmException.

This is the case although the RSA algorithm is included in the appendix A of JCE guide.

Is it not supported by the SUN or SunJCE providers?

I'm using J2SDK 1.4.0

thanks
AshrafTA , Computer Scince Dept.,
Old Dominion University