Solving the TCS CPA Java Question(December,2021) asked by Subscriber (Sim class).

 Question:

     Create a class Sim with below attributes:

simId - int

customerName - String

balance - double

ratePerSecond - double

circle - String

Write getters, setters and parameterized constructor as required. 

Public class Solution is already created with main method.

Code inside main method should not be altered else your solution might be 

scored as zero.You may copy the code from main method in eclipse to 

verify your implementation. 

Implement static method - transferCustomerCircle in Solution class.

This method will take first parameter as array of Sim class objects, 

second parameter as circle to be transferred (which is String parameter 

circle1) and third parameter as new circle (which is String parameter 

circle2).

Method will transfer the customer to new circle (circle2), where the

 circle attribute would match second parameter (circle1). 

Method will return array of Sim objects for which circle is transferred.

 Return array should be sorted in descending order of ratePerSecond

 (assuming ratePerSecond is not same for any of the Sim objects).

This method should be called from main method and display the simId,

customerName,circle and ratePerSecond of returned objects 

(as per sample output).

Main method mentioned above already has Scanner code to read values, 

create objects and test above methods. Hence do not modify it.

************************************************************************

Consider below sample input and output:

Input:

1

raj

100

1.5

KOL

2

chetan

200

1.6

KOL

3

asha

150

1.7

MUM

4

kiran

50

2.2

KOL

5

vijay

130

1.8

KOL

AHD

KOL

Output:

4 kiran KOL 2.2

5 vijay KOL 1.8

2 chetan KOL 1.6

*******************************************************************************

Solution:

import java.util.Arrays;

import java.util.Scanner;

public class Solution {

    public static void main(String[] args) {

         Scanner sc=new Scanner(System.in);

         Sim[] sims=new  Sim[5];

        for (int i = 0; i <5 ; i++) {

           int a=sc.nextInt();sc.nextLine();

           String b=sc.nextLine();

           double c=sc.nextDouble();sc.nextLine();

           double d=sc.nextDouble();sc.nextLine();

           String e=sc.nextLine();

               sims[i]  = new Sim(a,b,c,d,e);

        }

       String  circle1=sc.nextLine();

        String  circle2=sc.nextLine();

      Sim[]  ans =transferCustomerCircle(sims,circle1,circle2);

         if(ans!=null)

         {

             for (int i = 0; i <ans.length ; i++) {

                 System.out.println(ans[i].simId+" "+ans[i].customerName+" "+ans[i].circle+" "+ans[i].ratePerSecond);

             }

         }

    }

   public static Sim[] transferCustomerCircle(Sim[] sims,String circle1,String circle2)

    {

        double[] arr=new double[0];

        for (int i = 0; i < 5; i++) {

            if(sims[i].circle.equalsIgnoreCase(circle1))

            {

                sims[i].circle=circle2;

                arr= Arrays.copyOf(arr,arr.length+1);

                arr[arr.length-1]=sims[i].ratePerSecond;

            }

        }

        Arrays.sort(arr);

          Sim[] temp=new Sim[0];

        for (int i = arr.length-1; i >=0 ; i--) {

            for (int j = 0; j <5 ; j++) {

               if(sims[j].ratePerSecond==arr[i])

               {

                   temp= Arrays.copyOf(temp,temp.length+1);

                   temp[temp.length-1]=sims[j];

               }

            }

        }

        if(arr.length>0)

        {

            return temp;

        }

        return null;

    }

}

class Sim{

    int simId;

    String customerName;

    double balance;

    double ratePerSecond;

    String circle;

    //parametrized constructor

    public Sim(int simId, String customerName, double balance, double ratePerSecond, String circle) {

        this.simId = simId;

        this.customerName = customerName;

        this.balance = balance;

        this.ratePerSecond = ratePerSecond;

        this.circle = circle;

    }

    //getter and setter

    public int getSimId() {

        return simId;

    }

    public void setSimId(int simId) {

        this.simId = simId;

    }

    public String getCustomerName() {

        return customerName;

    }

    public void setCustomerName(String customerName) {

        this.customerName = customerName;

    }

    public double getBalance() {

        return balance;

    }

    public void setBalance(double balance) {

        this.balance = balance;

    }

    public double getRatePerSecond() {

        return ratePerSecond;

    }

    public void setRatePerSecond(double ratePerSecond) {

        this.ratePerSecond = ratePerSecond;

    }

    public String getCircle() {

        return circle;

    }

    public void setCircle(String circle) {

        this.circle = circle;

    }

}

**********************************************************************************

Video to the Solution is given below: