public void listInstances(BmrClient client, String clusterId, String instanceGroupId) {
    try {
        ListInstancesResponse response = client.listInstances(clusterId, instanceGroupId);
        for (Instance instance : response.getIntances()) {
            System.out.println(instance.getId() + "," + instance.getPrivateIpAddress()
                    + "," + instance.getPublicIpAddress());
        }
    } catch (BceServiceException e) {
        System.out.println("List instance failed: " + e.getErrorMessage());
    }
}

public class Instance {
    private String id;
    private String bccInstanceId;
    private String instanceName;
    private String privateIpAddress;
    private String publicIpAddress;
    private Status status;
    private String privateDnsName;
    private String publicDnsName;
    private int sshPort;
}