Call Taxi Booking System | ZOHO 3rd round question

Call Taxi Booking System

The code should satisfy the following criteria.

• There is n number of taxies. For simplicity, assume 4. But it should work for any number of taxies
• They are 6 points(a,b,c,d,e,f)
• All the points are in a straight line, and each point is 15kms away from the adjacent points
• Call Taxi takes 60 mins to travel from one point to another
• Each taxi charges Rs.100 minimum for the first 5 kilometers and Rs.10 for the subsequent kilometers
• For simplicity, time can be entered as absolute time. Ex: 9hrs, 15hrs, etc
• All taxies are initially stationed at A
• When a customer books a Taxi, a free taxi at that point is allocated
• If no free taxi is available at that point, a free taxi at the nearest point is allocated
• If two taxies are free at the same point, one with lower earning is allocated
• Note that the taxi only charges the customer from the pickup point to the drop point. Not the distance it travels from an adjacent point to pick up the customer
• If no taxi is free at that time, booking is rejected

More features in Call Taxi Booking System

Output:

1.Booking

2.Booking Details

3.Taxi Details

Program

[code lang=”java”]

import java.util.Scanner;
public class callTaxiBooking
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
Taxi[] taxi=new Taxi[10];
int taxiId=4,bookingId=0;
Booking[] booking=new Booking[20];
taxi[0]=new Taxi();
taxi[1]=new Taxi();
taxi[2]=new Taxi();
taxi[3]=new Taxi();
int choice,availability;
while(true)
{
System.out.println("__________Call_Taxi_Booking___________");
System.out.println("1.Booking");
System.out.println("2.Booking Details");
System.out.println("3.Taxi Details");
System.out.println("4.Exit");
System.out.println("Enter ur choice:");
choice=s.nextInt();
switch(choice)
{
case 1:
availability=addBooking(booking,bookingId,taxi,taxiId);
if(availability!=-1)
{
System.out.println("Your booking is successfull with taxi no:"+(availability));
booking[bookingId].dropTime();
calcEarnings(booking,bookingId,taxi,availability,booking[bookingId].pickUpPoint,booking[bookingId].dropPoint);
bookingId++;
}
else
{
System.out.println("No taxi is free for your pickUpTime!!");
System.out.println("You may chance your pickup time and try your booking!!");
}
break;
case 2:
System.out.println("BookingId CustomerId TaxiNo PickupPoint DropPoint PickupTime DropTime Earnings");
for(int bookingid=0;bookingid<bookingId;bookingid++)
{
System.out.format("%-13d%-15d%-13d%-13s%-13s%-13d%-13d%-13d",bookingid,booking[bookingid].customer_id,booking[bookingid].taxiNo,booking[bookingid].pickUpPoint,booking[bookingid].dropPoint,booking[bookingid].pickUpTime,booking[bookingid].dropTime,booking[bookingid].earning);
System.out.println("");
}
break;
case 3:
for(int taxiid=0;taxiid<taxiId;taxiid++)
{
int temp=0;
System.out.println("———————————–");
System.out.format("%-10s%-10d%-10s%-10s","TaxiNo:",taxiid,"CurrentPosition: ",taxi[taxiid].currentPosition);
System.out.println("");
System.out.println("___________________________________");
System.out.println("———————————–");
for(int bookingid=0;bookingid<bookingId;bookingid++)
{
if(booking[bookingid].taxiNo==taxiid)
{
if(temp==0)
System.out.println("BookingId CustomerId TaxiNo PickupPoint DropPoint PickupTime DropTime Earnings");
System.out.format("%-13d%-15d%-13d%-13s%-13s%-13d%-13d%-13d",bookingid,booking[bookingid].customer_id,booking[bookingid].taxiNo,booking[bookingid].pickUpPoint,booking[bookingid].dropPoint,booking[bookingid].pickUpTime,booking[bookingid].dropTime,booking[bookingid].earning);
System.out.println("");
temp=1;
}
}
System.out.format("%-10s%-10d","TotalEarnings:",taxi[taxiid].earning);
System.out.println("");
}
break;
case 4:
return;
default:
System.out.println("Please enter valid option!!!!");
}
}
}
public static int addBooking(Booking[] booking,int bookingId,Taxi[] taxi,int taxiId)
{
int availability,customer_id,pickUpTime;
char pickUpPoint,dropPoint;
Scanner s=new Scanner(System.in);
System.out.println("Enter Customer id:");
customer_id=s.nextInt();
System.out.println("Enter Pickup point(a-f):");
s.nextLine();
pickUpPoint=s.nextLine().charAt(0);
System.out.println("Enter Drop point(a-f):");
dropPoint=s.nextLine().charAt(0);
System.out.println("Enter pickup Time:");
pickUpTime=s.nextInt();
booking[bookingId]=new Booking(customer_id,pickUpPoint,dropPoint,pickUpTime);
availability = booking[bookingId].checkAvailability(taxi,taxiId);
return availability;
}
public static void calcEarnings(Booking[] booking,int bookingId,Taxi[] taxi,int taxiId,int pickUpPoint,int dropPoint)
{
int earning;
earning=(((Math.abs(pickUpPoint-dropPoint)*15)-5)*10)+100;
booking[bookingId].earning=earning;
taxi[taxiId].earning+=earning;
}
}
class Taxi
{
char currentPosition;
int earning,departureTime;
public Taxi()
{
currentPosition=’a’;
}
public boolean isTaxiFree(int pickupTime)
{
if(departureTime<pickupTime)
return false;
return true;
}
public void departureTime(char pickUpPoint,char dropPoint,int pickUpTime)
{
departureTime=pickUpTime+Math.abs(pickUpPoint-dropPoint);
}
}
class Booking
{
int customer_id,pickUpTime,dropTime,taxiNo,earning;
char pickUpPoint,dropPoint;
public Booking(int cust_id,char pickupPoint,char droppoint,int pickupTime)
{
customer_id=cust_id;
pickUpPoint=pickupPoint;
dropPoint=droppoint;
pickUpTime=pickupTime;
}
public void dropTime()
{
this.dropTime=pickUpTime+Math.abs(pickUpPoint-dropPoint);
}
public int checkAvailability(Taxi[] taxi,int taxiCount)
{
int taxiId,taxiid=0,shortestDistance=6;
for(taxiId=0;taxiId<taxiCount;taxiId++)
{
if(taxi[taxiId].isTaxiFree(pickUpTime))
{
if(Math.abs(taxi[taxiId].currentPosition-pickUpPoint)<shortestDistance)
{
taxiid=taxiId;
}
if(Math.abs(taxi[taxiId].currentPosition-pickUpPoint)==shortestDistance)
{
if(taxi[taxiId].earning<taxi[taxiid].earning)
taxiid=taxiId;
}
}
shortestDistance=Math.abs(taxi[taxiid].currentPosition-pickUpPoint);
}
if(shortestDistance!=6)
{
taxi[taxiid].departureTime(pickUpPoint,dropPoint,pickUpTime);
taxi[taxiid].currentPosition=dropPoint;
taxiNo=taxiid;
return taxiNo;
}
return -1;
}
}

[/code]

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