// 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(DefineWeekdaysForExceptions.class);

// Create a project instance
Project project = new Project();

// Define Calendar
Calendar cal = project.getCalendars().add("Calendar1");

// Define week days exception for Christmas
CalendarException except = new CalendarException();
except.setEnteredByOccurrences(false);

java.util.Calendar calObject = java.util.Calendar.getInstance();
calObject.set(2009, 12, 24, 0, 0, 0);
except.setFromDate(calObject.getTime());
calObject.set(2009, 12, 31, 23, 59, 0);
except.setToDate(calObject.getTime());
except.setType(CalendarExceptionType.Daily);
except.setDayWorking(false);
cal.getExceptions().add(except);

project.save(dataDir + "Project.Xml", SaveFileFormat.XML);