public void setRequestedInstanceCount(Integer requestedInstanceCount) {
        this.requestedInstanceCount = requestedInstanceCount;
    }
<p>
The target number of instances for the instance group.
</p>

@param requestedInstanceCount
       The target number of instances for the instance group.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroup.java