public void setAvailabilityZone(String availabilityZone) {
        this.availabilityZone = availabilityZone;
    }
<p>
The Availability Zone (AZ) where the read replica will be created.
</p>
<p>
Default: A random, system-chosen Availability Zone in the endpoint's Amazon Web Services Region.
</p>
<p>
Example: <code>us-east-1d</code>
</p>

@param availabilityZone
       The Availability Zone (AZ) where the read replica will be created.</p>
       <p>
       Default: A random, system-chosen Availability Zone in the endpoint's Amazon Web Services Region.
       </p>
       <p>
       Example: <code>us-east-1d</code>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBInstanceReadReplicaRequest.java