Complete the method loadBuses(String bfile) that reads information bus information from a
file (bfile contains the filename) . Each row in the file should trigger the creation of an
instance of bus or an appropriate subclass, according to the data in table 1. All buses created
should be added to an arraylist. LoadBuses should return the populated arraylist. This should be done for Bus, TrainingBus, SportsBus, PartyBus

public Bus( String name, int size, int price, int lev, Ministry mny) {

approvedTrips=new ArrayList<Trip>();

this.name = name;

this.size =size;

this.price = price;

this.level = lev;

this.id = getNextId();

this.mny = mny;

tripTypes = "BASICTRANSPORT";

}

import java.util.Scanner;

public class TrainingBus extends Bus {

private int teacherArea;

public TrainingBus(Bus b, int teacherArea)

{

super(b.getName(), b.getSize(), b.getPrice(), b.getLevel(), b.getMinistry());

this.teacherArea = teacherArea;

}

import java.util.Scanner;

public class SportsBus extends Bus {

private int competitorArea;

private int numSecurity;

private Bus bus;

public SportsBus(Bus b, int competitorArea, int numSecurity)

{

super(b.getName(), b.getSize(), b.getPrice(), b.getLevel(), b.getMinistry());

bus = b;

this.competitorArea = competitorArea;

this.numSecurity=numSecurity;

}

import java.util.Scanner;

public class PartyBus extends SportsBus{

int barArea;

public PartyBus(SportsBus s, int barArea)

{

super( s.getBus(), s.getCompetitorArea(), s.getNumSecurity());

this.barArea = barArea;

}

my attempt which is not correct but should be helpful

public ArrayList<Bus> loadBuses(String vfile )

{

Scanner bscan = null;

ArrayList<Bus> blist = new ArrayList<Bus>();

try

{

bscan = new Scanner(new File(vfile));

while(bscan.hasNext())

{

String [] nextLine = bscan.nextLine().split(" ");

switch(nextLine.length)

{

case 4: //regular

{

Bus b = new Bus(nextLine[0], Integer.parseInt(nextLine[1]),Integer.parseInt(nextLine[2]),Integer.parseInt(nextLine[3]), mny);

blist.add(b);

break;

}

case 5: //TrainingBus

{

Bus b = new TrainingBus(new Bus(nextLine[0], Integer.parseInt(nextLine[1]), Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), new Ministry(nextLine[4])), Integer.parseInt(nextLine[5]));

blist.add(b);

break;

}

case 6: //SportsBus

{

Bus b = new SportsBus(new Bus(nextLine[1], Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), Integer.parseInt(nextLine[4]), new Ministry(nextLine[5])), Integer.parseInt(nextLine[6]), Integer.parseInt(nextLine[7]));

blist.add(b);

break;

}

case 7: //PartyBus

{

Bus b = (new SportsBus(new Bus(nextLine[1], Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), Integer.parseInt(nextLine[4]), new Ministry(nextLine[5])), Integer.parseInt(nextLine[6]), Integer.parseInt(nextLine[7])));

blist.add(b);

break;

}

}

}

bscan.close();

}

catch(IOException e)

{

System.out.println("IOException");}

return blist;

}

make sure the index are right for the arrays and take into consideration the constructors and what type each is for the different bus classes look at image uploaded please

Transcribed Image Text:# cols 4 456 5 6 7 Bus Type Generic name Size Price Level Training name size Price level name size price Level Level Colo Col1 Col2 Col3 Sport Party Name size price Tablo 1 Col4 Teacher Area Spectator Area Spectator Area 61 Col5 Col6 #Security #Security Bar Area

Question

Complete the method loadBuses(String bfile) that reads information bus information from a
file (bfile contains the filename) . Each row in the file should trigger the creation of an
instance of bus or an appropriate subclass, according to the data in table 1. All buses created
should be added to an arraylist. LoadBuses should return the populated arraylist. This should be done for Bus, TrainingBus, SportsBus, PartyBus

public Bus( String name, int size, int price, int lev, Ministry mny) {

approvedTrips=new ArrayList<Trip>();

this.name = name;

this.size =size;

this.price = price;

this.level = lev;

this.id = getNextId();

this.mny = mny;

tripTypes = "BASICTRANSPORT";

}

import java.util.Scanner;

public class TrainingBus extends Bus {

private int teacherArea;

public TrainingBus(Bus b, int teacherArea)

{

super(b.getName(), b.getSize(), b.getPrice(), b.getLevel(), b.getMinistry());

this.teacherArea = teacherArea;

}

import java.util.Scanner;

public class SportsBus extends Bus {

private int competitorArea;

private int numSecurity;

private Bus bus;

public SportsBus(Bus b, int competitorArea, int numSecurity)

{

super(b.getName(), b.getSize(), b.getPrice(), b.getLevel(), b.getMinistry());

bus = b;

this.competitorArea = competitorArea;

this.numSecurity=numSecurity;

}

import java.util.Scanner;

public class PartyBus extends SportsBus{

int barArea;

public PartyBus(SportsBus s, int barArea)

{

super( s.getBus(), s.getCompetitorArea(), s.getNumSecurity());

this.barArea = barArea;

}

my attempt which is not correct but should be helpful

public ArrayList<Bus> loadBuses(String vfile )

{

Scanner bscan = null;

ArrayList<Bus> blist = new ArrayList<Bus>();

try

{

bscan = new Scanner(new File(vfile));

while(bscan.hasNext())

{

String [] nextLine = bscan.nextLine().split(" ");

switch(nextLine.length)

{

case 4: //regular

{

Bus b = new Bus(nextLine[0], Integer.parseInt(nextLine[1]),Integer.parseInt(nextLine[2]),Integer.parseInt(nextLine[3]), mny);

blist.add(b);

break;

}

case 5: //TrainingBus

{

Bus b = new TrainingBus(new Bus(nextLine[0], Integer.parseInt(nextLine[1]), Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), new Ministry(nextLine[4])), Integer.parseInt(nextLine[5]));

blist.add(b);

break;

}

case 6: //SportsBus

{

Bus b = new SportsBus(new Bus(nextLine[1], Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), Integer.parseInt(nextLine[4]), new Ministry(nextLine[5])), Integer.parseInt(nextLine[6]), Integer.parseInt(nextLine[7]));

blist.add(b);

break;

}

case 7: //PartyBus

{

Bus b = (new SportsBus(new Bus(nextLine[1], Integer.parseInt(nextLine[2]), Integer.parseInt(nextLine[3]), Integer.parseInt(nextLine[4]), new Ministry(nextLine[5])), Integer.parseInt(nextLine[6]), Integer.parseInt(nextLine[7])));

blist.add(b);

break;

}

bscan.close();

}

catch(IOException e)

{

System.out.println("IOException");}

return blist;

}

make sure the index are right for the arrays and take into consideration the constructors and what type each is for the different bus classes look at image uploaded please

#
cols
4
456
5
6
7
Bus
Type
Generic
name Size
Price Level
Training name size Price level
name size price
Level
Level
Colo Col1 Col2 Col3
Sport
Party
Name size price
Tablo 1
Col4
Teacher Area
Spectator Area
Spectator Area
61
Col5
Col6
#Security
#Security Bar Area

Accepted Answer

Here's a corrected version of the loadBuses method that creates instances of the appropriate bus…

Complete the method loadBuses(String bfile) that reads information bus information from a file (bfile contains the filename) .