public RegisterCertificateResult withCertificateId(String certificateId) {
        setCertificateId(certificateId);
        return this;
    }
<p>
The certificate identifier.
</p>

@param certificateId
       The certificate identifier.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/RegisterCertificateResult.java