GST Calculation Program in Core Java

This example demonstrates a  GST calculation in Core Java. You can modify the `price` and `gstRate` variables to suit your needs or enhance the program to take user input for these values.

I can help you develop a  GST (Goods and Services Tax) calculation program in Core Java.

Below is an example program that calculates the GST for a given product price and GST rate.

GST Calculation Program in Core Java

public class GSTCalculator {

    // Method to calculate GST

    public static double calculateGST(double price, double gstRate) {

        double gstAmount = (price * gstRate) / 100;

        return gstAmount;

    }

    // Method to calculate total price after GST

    public static double calculateTotalPrice(double price, double gstRate) {

        double gstAmount = calculateGST(price, gstRate);

        return price + gstAmount;

    }

    public static void main(String[] args) {

        double price = 1000.0; // Example price

        double gstRate = 18.0; // Example GST rate

        double gstAmount = calculateGST(price, gstRate);

        double totalPrice = calculateTotalPrice(price, gstRate);

        System.out.println("Original Price: " + price);

        System.out.println("GST Rate: " + gstRate + "%");

        System.out.println("GST Amount: " + gstAmount);

        System.out.println("Total Price after GST: " + totalPrice);

    }

}

Explanation

1. GST Calculation Method: 

     public static double calculateGST(double price, double gstRate) {

       double gstAmount = (price * gstRate) / 100;

       return gstAmount;

   }

   

   This method calculates the GST amount based on the price and GST rate.

2. Total Price Calculation Method: 

   

   public static double calculateTotalPrice(double price, double gstRate) {

       double gstAmount = calculateGST(price, gstRate);

       return price + gstAmount;

   }

   

   This method calculates the total price after adding the GST amount to the original price.

3. Main Method:

   

   public static void main(String[] args) {

       double price = 1000.0; // Example price

       double gstRate = 18.0; // Example GST rate

       double gstAmount = calculateGST(price, gstRate);

       double totalPrice = calculateTotalPrice(price, gstRate);

       System.out.println("Original Price: " + price);

       System.out.println("GST Rate: " + gstRate + "%");

       System.out.println("GST Amount: " + gstAmount);

       System.out.println("Total Price after GST: " + totalPrice);

   }

   

   This method sets the example price and GST rate, calculates the GST amount and total price, and prints the results.

Output

Running the above program will produce the following output:

Original Price: 1000.0

GST Rate: 18.0%

GST Amount: 180.0

Total Price after GST: 1180.0