Question

Part I Various public transporation can be described as follows: A PublicTransportation class with the following: ticket price (double type) and mumber of stops (int type). A CityBus is a PublicTransportation that in addition has the following: an route number (long type), an begin operation year (int type), a line name (String type), and driver(smame (String type) -A Tram is a CityBus that in addition has the following: maximum speed (int type), which indicates the maximum speed that this Citybus could reach. A Metro is a CityBus that in addition it has the following: number of vehicules (int type) and the name of the city (String type), such as Montreal, Toronto, etc. - A Ferry is a PublicTransportation that in addition has the following: build year (int type) and Ship name (String type) -An AirCraft is a PublicTransportation that in addition has the following: class type (enumeration type that can be: Helicopter, Airline, Glider or Balloon), and maintenance type (enumeration type that can be: Weekly, Monthly, or Yearly) Part I 1. Draw a UML representation for the above mentioned classes hierarchy. Your representation must also be accurate in terms of UML representation of the different entities and the relation between them. You must use a software to draw your UML diagrams (no hand-writing/drawing is allowed). 2. Write the implementation of the above mentioned classes using inheritance and according to the specifications and requirements given below: You must have 4 different Java packages for the classes. The first package wi include the PublicTransportation class. The second package will include the CityBus, Tram and Metro classes. The third package will include the Ferry class and the last package will include the AirCraft class
code in java please:)

Answer 1

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ANSWER:

JAVA CODE:

Here is code

PublicTransport.java

package transport.base;

public class PublicTransportation {
   protected double ticketPrice;
   protected int numStops;
   public PublicTransportation()
   {
      
   }
  
   public PublicTransportation(double tktprice, int noStops)
   {
       ticketPrice = tktprice;
       numStops = noStops;
   }
  
   public PublicTransportation(PublicTransportation other)
   {
       this.ticketPrice = other.ticketPrice;
       this.numStops = other.numStops;
   }
  
   public double getTicketPrice() {
       return ticketPrice;
   }
   public void setTicketPrice(double ticketPrice) {
       this.ticketPrice = ticketPrice;
   }
   public int getNumStops() {
       return numStops;
   }
   public void setNumStops(int numStops) {
       this.numStops = numStops;
   }
   @Override
   public boolean equals(Object obj) {
       if(obj == null)
           return false;
       if(obj instanceof PublicTransportation)
       {
           PublicTransportation pt = (PublicTransportation)obj;
           return (ticketPrice == pt.ticketPrice && numStops == pt.numStops);
       }
       else
           return false;
   }
   @Override
   public String toString() {
       return "This PublicTransport has " + numStops + " stops, and costs $" + String.format("%.2f", ticketPrice) +"."+"\n";
   }
  
}

CityBus.java

package transport.type1;

import transport.base.PublicTransportation;

public class CityBus extends PublicTransportation {
   protected long routeNo;
   protected int beginYear;
   protected String lineName;
   protected String driverName;
  
   public CityBus(){
       super();
   }
  
   public CityBus(double tktPrice, int stops, long route, int year, String line, String driver){
       super(tktPrice, stops);
       routeNo = route;
       beginYear = year;
       lineName = line;
       driverName = driver;
   }
  
   public CityBus(CityBus other)
   {
       super(other);
       routeNo = other.routeNo;
       beginYear = other.beginYear;
       lineName = other.lineName;
       driverName = other.driverName;
   }
  
  
   public long getRouteNo() {
       return routeNo;
   }
   public void setRouteNo(long routeNo) {
       this.routeNo = routeNo;
   }
   public int getBeginYear() {
       return beginYear;
   }
   public void setBeginYear(int beginYear) {
       this.beginYear = beginYear;
   }
   public String getLineName() {
       return lineName;
   }
   public void setLineName(String lineName) {
       this.lineName = lineName;
   }
   public String getDriverName() {
       return driverName;
   }
   public void setDriverName(String driverName) {
       this.driverName = driverName;
   }

   @Override
   public boolean equals(Object obj) {
       if(super.equals(obj) && obj instanceof CityBus)
       {
           CityBus cb = (CityBus)obj;
           return (routeNo == cb.routeNo && lineName.equals(cb.lineName) &&
                   beginYear == cb.beginYear && driverName.equals(cb.driverName));
       }
       else
           return false;
   }

   @Override
   public String toString() {
       String str = super.toString().replace("PublicTransport", "CityBus") ;
       str += "It was started in " + beginYear + " and its route no. is " + routeNo + " and ";
       str += "line is " + lineName +". It's driven by " + driverName +"." +"\n";
       return str;
   }
  
  

}

Tram.java

package transport.type1;

public class Tram extends CityBus {
   protected int maxSpeed;
  
   public Tram()
   {
       super();
   }
  
   public Tram(double tktPrice, int stops, long route, int year, String line, String driver, int maxSpd)
   {
       super(tktPrice, stops, route, year, line, driver);
       this.maxSpeed = maxSpd;
   }
  
   public Tram(Tram other)
   {
       super(other);
       this.maxSpeed = other.maxSpeed;
   }

   public int getMaxSpeed() {
       return maxSpeed;
   }

   public void setMaxSpeed(int maxSpeed) {
       this.maxSpeed = maxSpeed;
   }

   @Override
   public boolean equals(Object obj) {
       if(super.equals(obj) && obj instanceof Tram)
           return maxSpeed == ((Tram)obj).maxSpeed;
       else
           return false;
   }

   @Override
   public String toString() {
         
       String str = super.toString().replace("CityBus", "Tram");
       str += "It's maximum speed is " + maxSpeed + " km/h" +"\n";
       return str;
   }
  
  
}

Metro.java

package transport.type1;

public class Metro extends CityBus {
   protected int noOfVehicles;
   protected String city;
  
   public Metro()
   {
       super();
   }
  
   public Metro(double tktPrice, int stops, long route, int year, String line, String driver, int vehicles, String cty)
   {
       super(tktPrice, stops, route, year, line, driver);
       this.noOfVehicles = vehicles;
       this.city = cty;
   }
  
   public Metro(Metro other)
   {
       super(other);
       this.noOfVehicles = other.noOfVehicles;
       this.city = other.city;
   }

   public int getNoOfVehicles() {
       return noOfVehicles;
   }

   public void setNoOfVehicles(int noOfVehicles) {
       this.noOfVehicles = noOfVehicles;
   }

   public String getCity() {
       return city;
   }

   public void setCity(String city) {
       this.city = city;
   }

   @Override
   public boolean equals(Object obj) {
       if(super.equals(obj) && obj instanceof Metro)
       {
           Metro m = (Metro) obj;
           return noOfVehicles == m.noOfVehicles && city.equals(m.city);
       }
       else
           return false;
   }

   @Override
   public String toString() {
       String str = super.toString().replace("CityBus", "Metro") ;
       str += "It has " + noOfVehicles + " vehicles and travels to " + city +"\n";
       return str;
   }
  
  
}

Ferry.java

package transport.type2;

import transport.base.PublicTransportation;

public class Ferry extends PublicTransportation {
   protected int buildYear;
   protected String shipName;
  
   public Ferry()
   {
       super();
   }
   public Ferry(double tktprice, int noStops, int year, String name)
   {
       super(tktprice, noStops);
       this.buildYear = year;
       this.shipName = name;
   }
  
   public Ferry(Ferry other)
   {
       super(other);
       this.buildYear = other.buildYear;
       this.shipName = other.shipName;
   }
   public int getBuildYear() {
       return buildYear;
   }
   public void setBuildYear(int buildYear) {
       this.buildYear = buildYear;
   }
   public String getShipName() {
       return shipName;
   }
   public void setShipName(String shipName) {
       this.shipName = shipName;
   }
   @Override
   public boolean equals(Object obj) {
       if(super.equals(obj) && obj instanceof Ferry)
       {
           Ferry f = (Ferry)obj;
           return buildYear == f.buildYear && shipName.equals(f.shipName);
       }
       else
           return false;
   }
   @Override
   public String toString() {
       String str = super.toString().replace("PublicTransport", "Ferry");
       str += "It is named " + shipName + " and was built in " + buildYear +"\n";
       return str;
   }
  
  
}

AirCraft.java

package transport.type2;

import transport.base.PublicTransportation;

public class AirCraft extends PublicTransportation {
   public enum ClassType {Helicopter, Airline, Glider, Balloon};
   public enum MaintenanceType {Weekly, Monthly, Yearly};
  
   protected ClassType classType;
   protected MaintenanceType maintenanceType;
  
   public AirCraft()
   {
       super();
      
   }
  
   public AirCraft(double tktprice, int noStops, ClassType ctype, MaintenanceType mType)
   {
       super(tktprice, noStops);
       this.classType = ctype;
       this.maintenanceType = mType;
   }
  
   public AirCraft(AirCraft other)
   {
       super(other);
       this.classType = other.classType;
       this.maintenanceType = other.maintenanceType;
   }

   public ClassType getClassType() {
       return classType;
   }

   public void setClassType(ClassType classType) {
       this.classType = classType;
   }

   public MaintenanceType getMaintenanceType() {
       return maintenanceType;
   }

   public void setMaintenanceType(MaintenanceType maintenanceType) {
       this.maintenanceType = maintenanceType;
   }

   @Override
   public boolean equals(Object obj) {
       if(super.equals(obj) && obj instanceof AirCraft)
       {
           AirCraft ac = (AirCraft)obj;
           return classType == ac.classType && maintenanceType == ac.maintenanceType;
       }
       else
           return false;
   }

   @Override
   public String toString() {
       String ac = "";
       switch(classType)
       {
           case Helicopter:
               ac = "Helicopter";
               break;
           case Airline:
               ac = "Airline";
               break;
           case Glider:
               ac = "Glider";
               break;
           case Balloon:
               ac = "Balloon";
               break;
       }
      
       String str = super.toString().replace("PublicTransport", ac) ;
       str += "It needs ";
      
       switch(maintenanceType)
       {
           case Weekly:
               str += "Weekly ";
               break;
           case Monthly:
               str += "Monthly ";
               break;
           case Yearly:
               str += "Yearly ";
               break;
              
       }
       str += " maintenance." +"\n";
      
       return str;
   }
  
  
  
}

TransportDriverPart1.java

package transport;

import transport.base.PublicTransportation;
import transport.type1.CityBus;
import transport.type1.Metro;
import transport.type1.Tram;
import transport.type2.AirCraft;
import transport.type2.Ferry;
import transport.type2.AirCraft.ClassType;
import transport.type2.AirCraft.MaintenanceType;

public class TransportDriverPart1 {
  
   private static void printLowest(PublicTransportation trans[])
   {
       int minIdx = 0;
       for(int i = 1; i < trans.length; i++)
           if(trans[i].getTicketPrice() < trans[minIdx].getTicketPrice())
               minIdx = i;
      
       System.out.println("\nThe lowest ticket price is at index " + minIdx + " for \n" + trans[minIdx]);
   }
  
   private static void printHighest(PublicTransportation trans[])
   {
       int maxIdx = 0;
       for(int i = 1; i < trans.length; i++)
           if(trans[i].getTicketPrice() > trans[maxIdx].getTicketPrice())
               maxIdx = i;
      
       System.out.println("\nThe highest ticket price is at index " + maxIdx + " for \n" + trans[maxIdx]);
   }
   public static void main(String[] args) {
       PublicTransportation publicTrans = new PublicTransportation(5, 8);
       CityBus bus = new CityBus(5, 5, 111, 2000, "citybus line1", "john");
       Tram tram = new Tram(7, 8, 222, 2001, "tram line1" , "bob", 70);
       Metro metro = new Metro(10, 10, 333, 2002, "metros line1" , "peter", 4, "Toronto");
       Ferry ferry = new Ferry(50, 5, 2004, "Ship1");
       AirCraft aircraft = new AirCraft(100, 2, ClassType.Helicopter, MaintenanceType.Weekly);
      
       System.out.println(publicTrans);
       System.out.println(bus);
       System.out.println(tram);
       System.out.println(metro);
       System.out.println(ferry);
       System.out.println(aircraft);
      
       CityBus bus2 = new CityBus(5, 5, 111, 2000, "citybus line1", "john");
       if(bus.equals(bus2))
           System.out.println("the 2 city bus are equal");
       else
           System.out.println("the 2 city bus are not equal");
      
      
       PublicTransportation[] transArr = new PublicTransportation[10];
       transArr[0] = bus;
       transArr[1] = tram;
       transArr[2] = metro;
       transArr[3] = ferry;
       transArr[4] = aircraft;
       transArr[5] = new CityBus(6, 5, 666, 2000, "line2", "michael");
       transArr[6] = new Tram(9, 8, 777, 2001, "tram line1" , "bob", 70);
       transArr[7] = new CityBus(4, 5, 888, 2000, "line2", "michael");
       transArr[8] = new CityBus(2, 5, 999, 2000, "line2", "michael");
       transArr[9] = new CityBus(2, 5, 1010, 2000, "line2", "michael");
      
       printLowest(transArr);
      
       printHighest(transArr);
      
      
   }
}

output

This PublicTransport has 8 stops, and costs $5.00.

This CityBus has 5 stops, and costs $5.00.
It was started in 2000 and its route no. is 111 and line is citybus line1. It's driven by john.

This Tram has 8 stops, and costs $7.00.
It was started in 2001 and its route no. is 222 and line is tram line1. It's driven by bob.
It's maximum speed is 70 km/h

This Metro has 10 stops, and costs $10.00.
It was started in 2002 and its route no. is 333 and line is metros line1. It's driven by peter.
It has 4 vehicles and travels to Toronto

This Ferry has 5 stops, and costs $50.00.
It is named Ship1 and was built in 2004

This Helicopter has 2 stops, and costs $100.00.
It needs Weekly maintenance.

the 2 city bus are equal

The lowest ticket price is at index 8 for
This CityBus has 5 stops, and costs $2.00.
It was started in 2000 and its route no. is 999 and line is line2. It's driven by michael.

The highest ticket price is at index 4 for
This Helicopter has 2 stops, and costs $100.00.
It needs Weekly maintenance.

TransportDriverPart2.java

package transport;

import transport.base.PublicTransportation;
import transport.type1.CityBus;
import transport.type1.Metro;
import transport.type1.Tram;
import transport.type2.AirCraft;
import transport.type2.Ferry;
import transport.type2.AirCraft.ClassType;
import transport.type2.AirCraft.MaintenanceType;

public class TransportDriverPart2 {
  
   private static void printLowest(PublicTransportation[] trans)
   {
       int minIdx = 0;
       for(int i = 1; i < trans.length; i++)
           if(trans[i].getTicketPrice() < trans[minIdx].getTicketPrice())
               minIdx = i;
      
       System.out.println("\nThe lowest ticket price is at index " + minIdx + " for \n" + trans[minIdx]);
   }
  
   private static void printHighest(PublicTransportation[] trans)
   {
       int maxIdx = 0;
       for(int i = 1; i < trans.length; i++)
           if(trans[i].getTicketPrice() > trans[maxIdx].getTicketPrice())
               maxIdx = i;
      
       System.out.println("\nThe highest ticket price is at index " + maxIdx + " for \n" + trans[maxIdx]);
   }
  
   private static PublicTransportation[] copyAll(PublicTransportation[] trans)
   {
       PublicTransportation[] copy = new PublicTransportation[trans.length];
       for(int i = 0; i < trans.length; i++)
       {
          
           if(trans[i] instanceof Tram)
               copy[i] = new Tram((Tram)trans[i]);
           else if(trans[i] instanceof Metro)
               copy[i] = new Metro((Metro)trans[i]);
           else if(trans[i] instanceof Ferry)
               copy[i] = new Ferry((Ferry)trans[i]);
           else if(trans[i] instanceof AirCraft)
               copy[i] = new AirCraft((AirCraft)trans[i]);
           else if(trans[i] instanceof CityBus)
               copy[i] = new CityBus((CityBus)trans[i]);
           else if(trans[i] instanceof PublicTransportation)
               copy[i] = new PublicTransportation(trans[i]);
          
      
          
       }
       return copy;
   }
  
   private static void print(PublicTransportation[] trans)
   {
       for(int i = 0; i < trans.length; i++)
           System.out.println(trans[i].toString());
   }
   public static void main(String[] args) {
       PublicTransportation publicTrans = new PublicTransportation(5, 8);
       CityBus bus = new CityBus(5, 5, 111, 2000, "citybus line1", "john");
       Tram tram = new Tram(7, 8, 222, 2001, "tram line1" , "bob", 70);
       Metro metro = new Metro(10, 10, 333, 2002, "metros line1" , "peter", 4, "Toronto");
       Ferry ferry = new Ferry(50, 5, 2004, "Ship1");
       AirCraft aircraft = new AirCraft(100, 2, ClassType.Helicopter, MaintenanceType.Weekly);
      
       System.out.println(publicTrans);
       System.out.println(bus);
       System.out.println(tram);
       System.out.println(metro);
       System.out.println(ferry);
       System.out.println(aircraft);
      
       CityBus bus2 = new CityBus(5, 5, 111, 2000, "citybus line1", "john");
       if(bus.equals(bus2))
           System.out.println("the 2 city bus are equal");
       else
           System.out.println("the 2 city bus are not equal");
      
      
       PublicTransportation[] transArr = new PublicTransportation[10];
       transArr[0] = bus;
       transArr[1] = tram;
       transArr[2] = metro;
       transArr[3] = ferry;
       transArr[4] = aircraft;
       transArr[5] = new CityBus(6, 5, 666, 2000, "line2", "michael");
       transArr[6] = new Tram(9, 8, 777, 2001, "tram line1" , "bob", 70);
       transArr[7] = new CityBus(4, 5, 888, 2000, "line2", "michael");
       transArr[8] = new CityBus(2, 5, 999, 2000, "line2", "michael");
       transArr[9] = new CityBus(2, 5, 1010, 2000, "line2", "michael");
      
       System.out.println("The array of transports contains ");
       print(transArr);
       System.out.println("=====================================");
       printLowest(transArr);
      
       printHighest(transArr);
       System.out.println("=====================================");
       System.out.println("Copying the transport array using copy constructor...");
       PublicTransportation[] copied = copyAll(transArr);
       System.out.println("The copied array is");
       print(copied);
      
      
   }
}

outptu

This PublicTransport has 8 stops, and costs $5.00.

This CityBus has 5 stops, and costs $5.00.

It was started in 2000 and its route no. is 111 and line is citybus line1. It's driven by john.

This Tram has 8 stops, and costs $7.00.

It was started in 2001 and its route no. is 222 and line is tram line1. It's driven by bob.

It's maximum speed is 70 km/h

This Metro has 10 stops, and costs $10.00.

It was started in 2002 and its route no. is 333 and line is metros line1. It's driven by peter.

It has 4 vehicles and travels to Toronto

This Ferry has 5 stops, and costs $50.00.

It is named Ship1 and was built in 2004

This Helicopter has 2 stops, and costs $100.00.

It needs Weekly maintenance.

the 2 city bus are equal

The array of transports contains

This CityBus has 5 stops, and costs $5.00.

It was started in 2000 and its route no. is 111 and line is citybus line1. It's driven by john.

This Tram has 8 stops, and costs $7.00.

It was started in 2001 and its route no. is 222 and line is tram line1. It's driven by bob.

It's maximum speed is 70 km/h

This Metro has 10 stops, and costs $10.00.

It was started in 2002 and its route no. is 333 and line is metros line1. It's driven by peter.

It has 4 vehicles and travels to Toronto

This Ferry has 5 stops, and costs $50.00.

It is named Ship1 and was built in 2004

This Helicopter has 2 stops, and costs $100.00.

It needs Weekly maintenance.

This CityBus has 5 stops, and costs $6.00.

It was started in 2000 and its route no. is 666 and line is line2. It's driven by michael.

This Tram has 8 stops, and costs $9.00.

It was started in 2001 and its route no. is 777 and line is tram line1. It's driven by bob.

It's maximum speed is 70 km/h

This CityBus has 5 stops, and costs $4.00.

It was started in 2000 and its route no. is 888 and line is line2. It's driven by michael.

This CityBus has 5 stops, and costs $2.00.

It was started in 2000 and its route no. is 999 and line is line2. It's driven by michael.

This CityBus has 5 stops, and costs $2.00.

It was started in 2000 and its route no. is 1010 and line is line2. It's driven by michael.

=====================================

The lowest ticket price is at index 8 for

This CityBus has 5 stops, and costs $2.00.

It was started in 2000 and its route no. is 999 and line is line2. It's driven by michael.

The highest ticket price is at index 4 for

This Helicopter has 2 stops, and costs $100.00.

It needs Weekly maintenance.

=====================================

Copying the transport array using copy constructor...

The copied array is

This CityBus has 5 stops, and costs $5.00.

It was started in 2000 and its route no. is 111 and line is citybus line1. It's driven by john.

This Tram has 8 stops, and costs $7.00.

It was started in 2001 and its route no. is 222 and line is tram line1. It's driven by bob.

It's maximum speed is 70 km/h

This Metro has 10 stops, and costs $10.00.

It was started in 2002 and its route no. is 333 and line is metros line1. It's driven by peter.

It has 4 vehicles and travels to Toronto

This Ferry has 5 stops, and costs $50.00.

It is named Ship1 and was built in 2004

This Helicopter has 2 stops, and costs $100.00.

It needs Weekly maintenance.

This CityBus has 5 stops, and costs $6.00.

It was started in 2000 and its route no. is 666 and line is line2. It's driven by michael.

This Tram has 8 stops, and costs $9.00.

It was started in 2001 and its route no. is 777 and line is tram line1. It's driven by bob.

It's maximum speed is 70 km/h

This CityBus has 5 stops, and costs $4.00.

It was started in 2000 and its route no. is 888 and line is line2. It's driven by michael.

This CityBus has 5 stops, and costs $2.00.

It was started in 2000 and its route no. is 999 and line is line2. It's driven by michael.

This CityBus has 5 stops, and costs $2.00.

It was started in 2000 and its route no. is 1010 and line is line2. It's driven by michael.

HOPE IT HELPS YOU

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