Pattern Programs

Java Programs

Share with a Friend

Java Program: Discount Calculation with Multiple Slabs

Discount Slabs (Example)

Purchase Amount	Discount
Below ₹1,000	No Discount
₹1,000 – ₹4,999	5%
₹5,000 – ₹9,999	10%
₹10,000 and above	15%

Java

import java.util.Scanner;
 
public class DiscountCalculator {
    public static void main(String[] args) {
 
        Scanner sc = new Scanner(System.in);
 
        System.out.print("Enter purchase amount: ");
        double amount = sc.nextDouble();
 
        double discountRate;
 
        // Determine discount using slabs
        if (amount < 1000) {
            discountRate = 0;
        }
        else if (amount < 5000) {
            discountRate = 0.05;
        }
        else if (amount < 10000) {
            discountRate = 0.10;
        }
        else {
            discountRate = 0.15;
        }
 
        double discount = amount * discountRate;
        double finalAmount = amount - discount;
 
        System.out.println("\n------ Discount Calculation ------");
        System.out.printf("Original Amount : ₹%.2f%n", amount);
        System.out.printf("Discount Rate   : %.0f%%%n", discountRate * 100);
        System.out.printf("Discount Amount : ₹%.2f%n", discount);
        System.out.printf("Final Amount    : ₹%.2f%n", finalAmount);
 
        sc.close();
    }
}

Output

 
OUTPUT 1:

INPUT : 
Enter purchase amount: 3200

OUTPUT : 
------ Discount Calculation ------
Original Amount : ₹3200.00
Discount Rate   : 5%
Discount Amount : ₹160.00
Final Amount    : ₹3040.00

OUTPUT 2:

INPUT : 
Enter purchase amount: 8500

OUTPUT : 
------ Discount Calculation ------
Original Amount : ₹8500.00
Discount Rate   : 10%
Discount Amount : ₹850.00
Final Amount    : ₹7650.00


OUTPUT 3:

INPUT : 
Enter purchase amount: 12000

OUTPUT : 
------ Discount Calculation ------
Original Amount : ₹12000.00
Discount Rate   : 15%
Discount Amount : ₹1800.00
Final Amount    : ₹10200.00

Explanation

Input Purchase Amount

double amount = sc.nextDouble();

Reads the total purchase value.

Determine Discount Slab

if (amount < 1000)

...

else if (amount < 5000)

...

Uses if–else if ladder to select correct discount slab.

Discount Calculation

Discount = Amount × Discountnbsp;Rate
Final Amount = Amount − Discount

Formatted Output

System.out.printf("%.2f", value);

Displays monetary values with 2 decimal places.
%% prints % symbol.

✅ Key Concepts Used

✔ Conditional statements (if–else)
✔ Percentage calculations
✔ Arithmetic expressions
✔ User input using Scanner
✔ Formatted output

📌 Short Exam Answer

This program calculates discount based on multiple slabs using conditional statements. It computes the discount amount and final payable amount according to the purchase value.