exercises1

// 
representing museum tickets
abstract class AMuseTicket {
Date d;
int price;
}

// museum tickets
class MuseAdm 
 extends AMuseTicket {
 MuseAdm(Date d, 
         int price) { 
  this.d = d;
  this.price = price;
 }
}

// to represent time
class ClockTime {
 int hour;
 int minute;
 
 ClockTime(int hour, 
           int minute) { 
  this.hour = hour;
  this.minute = minute;
 }
}

// omnimax admission
class OmniMax 
 extends AMuseTicket {
 ClockTime t;
 String title;

 OmniMax(Date d, 
         int price,
         ClockTime t, 
         String title) { 
  this.d = d;
  this.price = price;
  this.t = t;
  this.title = title;
 }
}

// laser admissions
class LaserShow 
 extends AMuseTicket {
 ClockTime t;
 String row;
 int seat;

 LaserShow(Date d, 
         int price, 
         ClockTime t, 
         String row, 
         int seat) { 
  this.d = d;
  this.price = price;
  this.t = t;
  this.row = row;
  this.seat = seat;
 }
}

Figure 3: Some classes

1.7 Problem

Draw a diagram for the classes in figure 3.