Question

creat a simple theater booking system with java language using:

1. oop objects - classes
2. encapsulation
3. inheritance
4. polymorphism
5. abstract class

Answer 1

class CompareEntertainmentsUsingInheritance {     public static void main(String arg[])     {         Movie julai = new Movie();         julai.name = "Julai";         julai.director = "Trivikram";         julai.stuntMaster = "Peter Hein";         julai.numberOfArtists = 57;         julai.releaseDate = "15-Aug-2012";                  julai.collectionsFirstWeek = 215467.8;         julai.collectionsRestOfTheDays = 541132.5;                  Drama ramayan = new Drama();         ramayan.name = "Ramayana";         ramayan.writer = "Valmiki";         ramayan.stageSetter = "Anjaneya";         ramayan.numberOfArtists = 200000;         ramayan.releaseDate = "17-Mar-1659 BC";                  ramayan.collectionsFirstWeek = 3282937242.86;         ramayan.collectionsRestOfTheDays = 93488272349.51;                           Circus jumbo = new Circus();         jumbo.name = "Jumbo";         jumbo.ringMaster = "Antony";         jumbo.numberOfArtists = 316;         jumbo.releaseDate = "16-Dec-1997";                  jumbo.collectionsFirstWeek = 2123132.21;         jumbo.collectionsRestOfTheDays = 234936725.09;                  if((jumbo.getTotalCollections() > julai.getTotalCollections()) && (jumbo.getTotalCollections() > ramayan.getTotalCollections()))         {             jumbo.print();         }         else if (julai.getTotalCollections() > ramayan.getTotalCollections())         {             julai.print();         }         else         {             ramayan.print();         }          } } class Entertainment {     String name;     int numberOfArtists;     String releaseDate;     double collectionsFirstWeek;     double collectionsRestOfTheDays;     double getTotalCollections()     {         return collectionsFirstWeek + collectionsRestOfTheDays;     }     void printEntertainment()     {         System.out.println( name + " got the following collections " );         System.out.println("First Week : " + collectionsFirstWeek);         System.out.println("Rest Of The Days : " + collectionsRestOfTheDays);         System.out.println("Total Collections : " + getTotalCollections());         System.out.println("Total Artists : " + numberOfArtists);         System.out.println("Release Date : " + releaseDate);     } } class Movie extends Entertainment {     String director;     String stuntMaster;     void print()     {         printEntertainment();         System.out.println("Director : " + director);         System.out.println("Stunt Master : " + stuntMaster);     } } class Drama extends Entertainment {     String writer;     String stageSetter;     void print()     {         printEntertainment();         System.out.println("Writer : " + writer);         System.out.println("Stage Setter : " + stageSetter);     } } class Circus extends Entertainment {     String ringMaster;     void print()     {         printEntertainment();         System.out.println("Ring Master : " + ringMaster);     } }