Proxy
Example 1: package az.proxy ; import java.util.Date ; public class Attendance { private Date date ; private boolean isPresent ; public Attendance (Date date , boolean isPresent) { this . date = date ; this . isPresent = isPresent ; } public Date getDate () { return date ; } public void setDate (Date date) { this . date = date ; } public boolean isPresent () { return isPresent ; } public void setPresent ( boolean present) { isPresent = present ; } } package az.proxy ; public interface DailySession { void attendLesson () ; } package az.proxy ; public class Student implements DailySession { private Attendance attendance ; public Student (Attendance attendance) { this . attendance = attendance ; } public Attendance getAttendance () { return attendance ; } public void setAttendance (Attendance attendance) { this . attendance = attendance ;