public String getMasterPublicDnsName() {
        return this.masterPublicDnsName;
    }
<p>
The DNS name of the master node. If the cluster is on a private subnet, this is the private DNS name. On a public
subnet, this is the public DNS name.
</p>

@return The DNS name of the master node. If the cluster is on a private subnet, this is the private DNS name. On
        a public subnet, this is the public DNS name.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/JobFlowInstancesDetail.java