Zoho Interview Questions Call Taxi Booking

                                                         Call Taxi Booking

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

      Taxi[] t=new Taxi[4];
      t[0]=new Taxi();
      t[1]=new Taxi();
      t[2]=new Taxi();
      t[3]=new Taxi();
      Booking[] b=new Booking[10];
      int i=0,j=0;
      Scanner scan=new Scanner(System.in);
      while(true)
      {
      System.out.println("__________________CALL TAXI BOOKING__________________");
      System.out.println("1)Booking");
      System.out.println("2)Display");
      System.out.println("3)exit");
      System.out.println("Enter your choice");
      int ch=scan.nextInt();
      
      if(ch>3 || ch<1){System.out.println("Invalid Input");return;}
      if(ch==1)
      {
         System.out.println("Input "+(i+1)+":");
         System.out.println("Customer Id");
         int id=scan.nextInt();
         System.out.println("Pickup Point:");
         scan.nextLine();
         char pick=scan.nextLine().charAt(0);
         System.out.println("Drop Point:");
         char drop=scan.nextLine().charAt(0);
         System.out.println("Pickup Time:");
         int PickTime=scan.nextInt();
        b[i]=new Booking(id,pick,drop,PickTime);
        int a;
         a = b[i].isAvailable(t);
        System.out.println("ouput "+(i+1));
        if(a!=-1)
        {
               System.out.println("Taxi-"+(a+1)+" is alloted");
               
               t[a].calculateEarnings(b[i].pickupPoint,b[i].dropPoint);
               
               b[i].dropTime();
               b[i].calculateEarnings();
        }
        else System.out.println("Booking is rejected");
        i++;
      }
      else if(ch==2)
      {
          System.out.format("%-10s%-10s\n","Taxi No:","Total Earnings:");
          System.out.format("%-10s%-13s%-10s%-10s%-13s%-10s%-10s\n","BookingID","CustomerId","From","To","PickupTime","DropTime","Amount");
          System.out.println("output");
          for(int k=0;k<4;k++)
          {
              if(t[k].earnings!=0)
              {
                  System.out.println("Taxi-"+(k+1)+"    "+"Total Earnings:"+"Rs . "+t[k].earnings);
                  for(j=0;j<i;j++)
                  {
                      if(b[j].taxino==k)
                      {
                        
                          System.out.format("%-10d%-10d%-10c%-10c%-10d%-10d%-10d\n",(j+1),b[j].customerId,
                            b[j].pickupPoint,b[j].dropPoint,b[j].pickupTime,b[j].dropTime,b[j].earnings);
                      }
                      
                  }
              }
          }
      }
      else if(ch==3)
      return;
      }
     
}
    
}

public class Taxi {

    char initialPoint;

    int departureTime;

    int earnings;

    public Taxi()

    {

        initialPoint='A';

    }

    public void departureTime(int pickTime,char pick,char drop)

    {

        this.departureTime=(pickTime+(Math.abs(pick-drop)));

    }

    public void calculateEarnings(char pick,char drop)

    {

        int dist=(Math.abs(pick-drop)*15);

        int amount=((dist-5)*10)+100;

        this.earnings=earnings+amount;

    }

       

  

}

public class Booking {

   int customerId;

   char pickupPoint;

   char dropPoint;

   int pickupTime;

   int dropTime;

   int earnings;

   int taxino;

   Taxi[] t;

  

    Booking(int id, char pick, char drop, int PickTime) {

   customerId=id;

       pickupPoint=pick;

       dropPoint=drop;

       pickupTime=PickTime;

    }

    

    public void dropTime()

    {

        this.dropTime=(pickupTime+(Math.abs(pickupPoint-dropPoint))); 

    }

    public void calculateEarnings()

    {

        int dist=(Math.abs(pickupPoint-dropPoint)*15); 

        this.earnings=((dist-5)*10)+100;

        

    }

    

    

    

  

   public int isAvailable(Taxi[] t) 

   {

       int j,min=6,temp=-1;

       for(j=0;j<4;j++)

       {

          if(Math.abs(pickupPoint-t[j].initialPoint)<=min && t[j].departureTime<=pickupTime)

          {

                if(temp==-1 || Math.abs(pickupPoint-t[j].initialPoint)<min ) 

                 temp=j;

             if(Math.abs(pickupPoint-t[j].initialPoint)==min && t[j].earnings!=0) 

             {

                 if(t[temp].earnings>t[j].earnings) 

                 temp=j;

             }

             min= Math.abs(pickupPoint-t[j].initialPoint);

             

          }

       }

       if(min!=6){

           t[temp].departureTime(pickupTime,pickupPoint,dropPoint);

           t[temp].initialPoint=dropPoint;

           taxino=temp;

           return temp;} 

       return -1;

   }

}