Java: Encrypt and encode string with public key

Task: Write method to encrypt and encode string with public key


   public byte[] encryptAndEncode(String data) 
           throws NoSuchAlgorithmException, NoSuchPaddingException,
           InvalidKeyException, IllegalBlockSizeException,
           BadPaddingException {
       Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
       cipher.init(Cipher.ENCRYPT_MODE, publicKey); // Use public key object.
       return Base64.getEncoder().encode(cipher.doFinal(data.getBytes()));


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