// 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(ChangeProgressOfTask.class);

Project project = new Project();
System.out.println(project.getCalculationMode());

Task task = project.getRootTask().getChildren().add("Task");
task.set(Tsk.DURATION, project.getDuration(2));
task.set(Tsk.PERCENT_COMPLETE, 50);