@Override
    public EnableAvailabilityZonesForLoadBalancerResult enableAvailabilityZonesForLoadBalancer(EnableAvailabilityZonesForLoadBalancerRequest request) {
        request = beforeClientExecution(request);
        return executeEnableAvailabilityZonesForLoadBalancer(request);
    }
<p>
Adds the specified Availability Zones to the set of Availability Zones for the specified load balancer in
EC2-Classic or a default VPC.
</p>
<p>
For load balancers in a non-default VPC, use <a>AttachLoadBalancerToSubnets</a>.
</p>
<p>
The load balancer evenly distributes requests across all its registered Availability Zones that contain
instances. For more information, see <a
href="https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-disable-az.html">Add or Remove
Availability Zones</a> in the <i>Classic Load Balancers Guide</i>.
</p>

@param enableAvailabilityZonesForLoadBalancerRequest
       Contains the parameters for EnableAvailabilityZonesForLoadBalancer.
@return Result of the EnableAvailabilityZonesForLoadBalancer operation returned by the service.
@throws LoadBalancerNotFoundException
        The specified load balancer does not exist.
@sample AmazonElasticLoadBalancing.EnableAvailabilityZonesForLoadBalancer
@see <a
     href="http://docs.aws.amazon.com/goto/WebAPI/elasticloadbalancing-2012-06-01/EnableAvailabilityZonesForLoadBalancer"
     target="_top">AWS API Documentation</a>
aws-java-sdk-elasticloadbalancing/src/main/java/com/amazonaws/services/elasticloadbalancing/AmazonElasticLoadBalancingClient.java