// For complete examples and data files, please go to https://github.com/aspose-tasks/Aspose.Tasks-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(IdentifyCrossProjectTasks.class);

Project externalProject = new Project(dataDir + "External.mpp");

Task externalTask = externalProject.getRootTask().getChildren().getByUid(4);
// ID of the task in the external project
System.out.println(externalTask.get(Tsk.ID).toString());
// ID of the task in the original project
System.out.println(externalTask.get(Tsk.EXTERNAL_ID).toString());