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 ;...