Android client - Java Server Hybrid Encryption -- 2

I want a simple android code snippet that creates a keypair (public/private key), then it creates a symmetric AES key, encrypts data with symmetric key and then encrypt the symmetric key with the public of the "server" and send both encrypted data + encrypted key as string over a rest endpoint. Also I want another snippet that is developed in Java that takes these two elements from rest, decrypt the encrypted symmetric key and uses the decrypted symmetric key to decrypt the encrypted data