To my knowledge encryption based on ECC is not available in the Java Card API, only Signature (i.e. ECDSA)and KeyAgreement (i.e. ECDH). Just look for constants with names that start with "ALG_EC_
" in those classes. There might be NXP specific extensions to the API though.
Here's a paper describing how to implement ECIE in Java Card (wich I found by Googling: "java card" elliptic curve encryption...).