public Boolean getSingleAvailabilityZone() {
        return this.singleAvailabilityZone;
    }
<p>
Indicates that the fleet launches all Spot Instances into a single Availability Zone.
</p>
<p>
Supported only for fleets of type <code>instant</code>.
</p>

@return Indicates that the fleet launches all Spot Instances into a single Availability Zone.</p>
        <p>
        Supported only for fleets of type <code>instant</code>.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/SpotOptionsRequest.java