public String getAdministratorId() {
        return this.administratorId;
    }
<p>
The account ID of the GuardDuty administrator account whose invitation you're accepting.
</p>

@return The account ID of the GuardDuty administrator account whose invitation you're accepting.
aws-java-sdk-guardduty/src/main/java/com/amazonaws/services/guardduty/model/AcceptAdministratorInvitationRequest.java