How to get the txHash of a transaction?

Question

I have this method where I make a transaction to the network rinkeby, but to know how I can get the hash of the transaction made. I am using java with web3j, in addition to using infura to connect to the network.

public void CrearCertificado(CareerCertificate careercertificate, String id, BigInteger fecha, String nombre, String rutalumno, String instituto, String rutinstituto, String titulo,
                                                        String totalhash, String fechatitulacion, String registronumber, String codigoV ) throws Exception{


                    careercertificate
                    .createCertificate(id, fecha, nombre, rutalumno, instituto, rutinstituto, titulo, totalhash, fechatitulacion, registronumber, codigoV )
                    .send();

}

Answer 1

Did you try this?

careercertificate
    .createCertificate(id, fecha, nombre, rutalumno, instituto, rutinstituto, titulo, totalhash, fechatitulacion, registronumber, codigoV )
    .send().getTransactionHash()