Question

Define a class named CloudStorage with the following specifications:

Member Variables:

• int acno – stores the user's account number.
• int space – stores the amount of storage space in GB purchased by the user.
• double bill – stores the total price to be paid by the user.

Member Methods:

• void accept() – prompts the user to input their account number and storage space using Scanner class methods only.
• void calculate() – calculates the bill total price based on the storage space purchased using the pricing table provided:
  

  Storage range	Price per GB (Rs)
  First 15 GB	15
  Next 15 GB	13
  Above 30 GB	11

• void display() − displays the account number, storage space and bill to be paid.

Write a main method to create an object of the class and invoke the methods of the class with respect to the object.

Answer 1

import java.util.*;
class CloudStorage
{
  int acno;
  int space;
  double bill;
public void accept()
{
  Scanner sc=new Scanner(System.in);
  System.out.println("Enter your account
  number :");
  acno=sc.nextlnt();
  System.out.println("Enter amount of storage
  space required :");
  space=sc.nextint();
}
public void calculate()
{
 if (space<=15)
  bill=space*15
 else if(space<=30)
  bill=15*15 + (space-15)*13
else if (space>30)
  bill=15*15 + 15 *13 + (space-30)*11
}
public void display()
{
  System.out.println("Account No.: "+ acno);
  System.out.println("Storage :" + space);
  System.out.println("Bill : "+ bill);
}
public static void main(String[] args)
{
  CloudStorage ob=new CloudStorage();
  ob.accept();
  ob.calculate();
  ob.display();
}
}