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Question 1: Grocery Tax Calculator

/ Published in: Java

Question 1 for CS1030 Group 2 Assignment 7

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import java.util.*;
 
public class taxCalculator
{
	public static void main (String[] args)
	{
 
		// initialization and setup
		double foodBill =  150.00; // grocery bill total for food
		double foodTaxRate =  0.03; // food sales tax 3%
		double totalFoodTax =  0.00; // total food tax amount
 
		double nonFoodBill =  50.00; // grocery bill total for non-food
		double nonFoodTaxRate = 0.0675; // non food tax 6.75%
		double totalNonFoodTax =  0.00; // total non food tax amount
 
		double totalTaxes =  0.00;// total taxes for both food and nonfood bills
		double rounded; // total tax rounded to the nearest cent
 
 
		// do calculations
		totalFoodTax = foodBill * foodTaxRate;
		totalNonFoodTax = nonFoodBill * nonFoodTaxRate;
		totalTaxes = totalFoodTax + totalNonFoodTax;
		rounded = Round(totalTaxes, 2); // pass in totalTaxes to be rounded 
					        // and to which decimal place (2)
					        // to the Round function
 
		//print results
		System.out.println("The total tax for your bill is $" + rounded);
 
 
	} // end main
 
 
	// round totalTaxes to the nearest cent
	public static double Round(double Rval, int Rpl)
	{
		double p = Math.pow(10,Rpl);
		Rval = Rval * p;
		double tmp = Math.round(Rval);
		return tmp/p; // return rounded value
	} // end Round
 
 
} // end class

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