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Class & Object Based Program - CloudStorage - Java Programs

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.

 

Java 
import java.util.Scanner;
class CloudStorage{
    int acno;
    int space;
    double bill;
    public void accept(){
        Scanner in = new Scanner(System.in);
        System.out.print("Account number: ");
        acno = Integer.parseInt(in.nextLine());
        System.out.print("Space: ");
        space = Integer.parseInt(in.nextLine());
    }
    public void calculate(){
        if(space <= 15)
            bill = space * 15;
        else if(space <= 30)
            bill = 225 + (space - 15) * 13;
        else
            bill = 420 + (space - 30) * 11;
    }
    public void display(){
        System.out.println("Account No. " + acno);
        System.out.println("Storage space: " + space);
        System.out.println("Bill: " + bill);
    }
    public static void main(String[] args){
        CloudStorage obj = new CloudStorage();
        obj.accept();
        obj.calculate();
        obj.display();
    }
}

Output

 
OUTPUT 1:
Account number: 1001
Space: 12
Account No. 1001
Storage space: 12
Bill: 180.0

OUTPUT 2:
Account number: 1002
Space: 25
Account No. 1002
Storage space: 25
Bill: 355.0
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