import com.ionoscloud.ApiClient;
import com.ionoscloud.ApiException;
import com.ionoscloud.Configuration;
import com.ionoscloud.auth.*;
import com.ionoscloud.model.*;
import com.ionoscloud.api.ClustersApi;
public static void main(String[] args) {
ApiClient defaultClient = Configuration.getDefaultApiClient();
// Configure HTTP basic authorization: basicAuth
HttpBasicAuth basicAuthentication = (HttpBasicAuth) defaultClient.getAuthentication("basicAuth");
basicAuthentication.setUsername("YOUR USERNAME");
basicAuthentication.setPassword("YOUR PASSWORD");
ClustersApi apiInstance = new ClustersApi(defaultClient);
String clusterId = "clusterId_example"; // String | The unique ID of the cluster.
PostgresVersionList result = apiInstance.clusterPostgresVersionsGet(clusterId);
System.out.println(result);
} catch (ApiException e) {
System.err.println("Exception when calling ClustersApi#clusterPostgresVersionsGet");
System.err.println("Status code: " + e.getCode());
System.err.println("Reason: " + e.getResponseBody());
System.err.println("Response headers: " + e.getResponseHeaders());