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Class & Object - Book Fair Program - Java Programs

Define a class named BookFair with the following description:
Instance variables/data members:
String bName: stores the name of the book.
double price: stores the price of the book.
Member methods:
BookFair(): default constructor to initialize data members.
void input(): to input and store the name and the price of the book.
void calculate(): to calculate the price after discount. Discount is calculated based on the following criteria:

Price Discount
Less than or equal to Rs. 1000 2% of price
More than Rs. 1000 and less than or equal to Rs. 3000 10% of price
More than Rs. 3000 15% of price

void display(): to display the name and price of the book after discount.

Java 

import java.util.Scanner;
class BookFair{
    String bName;
    double price;
    public BookFair(){
        bName = "";
        price = 0.0;
    }
    public void input(){
        Scanner in = new Scanner(System.in);
        System.out.print("Book name: ");
        bName = in.nextLine();
        System.out.print("Price: ");
        price = Double.parseDouble(in.nextLine());
    }
    public void calculate(){
        if(price <= 1000)
            price -= 2.0 / 100 * price;
        else if(price <= 3000)
            price -= 10.0 / 100 * price;
        else
            price -= 15.0 / 100 * price;
    }
    public void display(){
        System.out.println("Book name: " + bName);
        calculate();
        System.out.println("Price after discount: " + price);
    }
    public static void main(String[] args){
        BookFair obj = new BookFair();
        obj.input();
        obj.display();
    }
}

Output

 
 OUTPUT 1: 
Book name: The Wings of Eagles
Price: 1500
Book name: The Wings of Eagles
Price after discount: 1350.0

 OUTPUT 2: 
Book name: Two little Soldiers
Price: 2100
Book name: Two little Soldiers
Price after discount: 1890.0
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