Question

An electronics shop has announced a special discount on the purchase of laptops as given below: 

Category	Discount on Laptop
Up to ₹ 25,000	5.0%
₹ 25,001 − ₹ 50,000	7.5%
₹ 50,001 − ₹ 1,00,000	10.0%
More than ₹ 1,00,000	15.0%

Define a class Laptop described as follows:
Data members/Instance variables: name, price, dis, amt;
Member methods:

1. a parameterised constructor to initialize the data members.
2. to accept the details (name of the customer and the price).
3. to compute the discount.
4. to display the name, discount and amount to be paid after discount.

Write a main method to create an object of the class and call the member methods.

Answer 1

import java.util.*;
public class Laptop
{ Scanner ob = new Scanner(System.in);
String name; 2
double price, dis, amt;
Laptop (String a, double b, double c, double d)
{name = a;
price = b;
dis = c;
amt = d;
}

void input()
{System.out.println("Enter the name:");
name = ob.nextLine();
System.out.println("Enter the price");
price = ob.nextFloat();
}

void discount()
{if (price <= 25000)
dis = 5.0 / 100;
else if (price >= 25001 && price <= 50000)
dis = 7.5 / 100;
else if (price >= 50001 && price <= 100000)
dis = 10.0 / 100;
else if (price > 100000)
dis = 15.0 / 100;
dis = price * dis; // calculate discount
amt = price - dis; // amount after discount
}

void display()
{System.out.println("***Output***");
System.out.println("Name: " + name);
System.out.println("Discount: " + dis);
System.out.println("Amount Payable: " + amt);
}

public static void main(String args[])
{Laptop L = new Laptop ("", 0.0, 0.0, 0.0);
L.input();
L.discount(); 
L.display(); 
}}