Thread: Simple looping statement

So I have a homework assignment where a program needs to be designed to allow the user to input the Number of bags sold (of coffee) as well as the Weight per bag and output the information in a table as I've shown in my code and as I've tried to outline below:

Coffee Table
Number of bags sold Weight per Bag Price per pound Total Price Price with Tax


You have to calculate the total price using Total price= (unit weight) * num of units sold * 5.99

You calculate price with tax using = (total price) + (total price) * 0.0725

The only problem I'm having is that she's given use a table of values for Number of bags sold and weight per bag (that the user should be able to enter) and I know I have to incorporate a loop so that the values successfully output into the table. Here's my code:

main method

import java.util.*;
public class CalcMain
{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        double weight, units, totalPrice, taxPrice, pricePerPound;
        System.out.println("\t\t\t\t" + "Coffee Table");
 
        System.out.println("Enter Weight of Bag: ");
        weight = scanner.nextDouble();
        System.out.println("Enter number of units: ");
        units = scanner.nextDouble();
 
        Calculator calculator = new Calculator();
        totalPrice = calculator.getTotalPrice(weight, units);
        pricePerPound = totalPrice/weight;
 
        taxPrice = calculator.getTaxPrice(totalPrice);
 
        System.out.println("Number of bags sold" + "\t" + "Weight per bag" +
                           "\t" + "Price per pound" + "\t" + "Total Price" + "\t" + "Price with tax");
        System.out.println(units + "\t\t\t" + weight + "\t\t" + "$5.99" + "\t\t" +
                           totalPrice + "\t\t" + taxPrice);
        }
}

calculator method

public class Calculator
{
    //set global variables
    public static final double PRICE = 5.99;
    public static final double TAX = 0.0725;
 
    // instance variables - replace the example below with your own
    private double totalPrice;
    private double taxPrice;
 
    /**
     * Constructor for the calculator setting total/tax prices at 0.
     */
    public Calculator()
    {
        // initialise instance variables
        totalPrice = 0.0;
        taxPrice = 0.0;
    }
 
    /**
     * getTotalPrice and getTaxPrice methods
     */
    public double getTotalPrice(double weight, double units){
        totalPrice = weight * units * PRICE;
        return totalPrice;
    }
 
    public double getTaxPrice(double totalPrice){
        taxPrice = totalPrice + (totalPrice * TAX);
        return taxPrice;
    }
}

I'm not sure in the least bit, how to incorporate a loop to allow multiple inputs of # of bags sold and Weight per bag and have it output as I've designated in the code. Could anyone possibly clue me in? I understand basic for-and-while loops.

Update:

So I think I made progress but I'm not completely there. This is my new code and the resultant output:

main method

import java.util.*;
public class CalcMain2
{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        double weight, units, totalPrice, taxPrice, pricePerPound;
        System.out.println("\t\t\t\t" + "Coffee Table");
 
        int counter = 0;
        while (counter < 10){
        System.out.println("Enter Weight of Bag: ");
        weight = scanner.nextDouble();
        System.out.println("Enter number of units: ");
        units = scanner.nextDouble();
        counter++;
 
 
        Calculator calculator = new Calculator();
        totalPrice = calculator.getTotalPrice(weight, units);
        pricePerPound = totalPrice/weight;
 
        taxPrice = calculator.getTaxPrice(totalPrice);
 
        System.out.println("Number of bags sold" + "\t" + "Weight per bag" +
                           "\t" + "Price per pound" + "\t" + "Total Price" + "\t" + "Price with tax");
        System.out.println(units + "\t\t\t" + weight + "\t\t" + "$5.99" + "\t\t" +
                           totalPrice + "\t\t" + taxPrice);
                        }
        }
}

calculator class

public class Calculator
{
    //set global variables
    public static final double PRICE = 5.99;
    public static final double TAX = 0.0725;
 
    // instance variables - replace the example below with your own
    private double totalPrice;
    private double taxPrice;
 
    /**
     * Constructor for the calculator setting total/tax prices at 0.
     */
    public Calculator()
    {
        // initialise instance variables
        totalPrice = 0.0;
        taxPrice = 0.0;
    }
 
    /**
     * getTotalPrice and getTaxPrice methods
     */
    public double getTotalPrice(double weight, double units){
        totalPrice = weight * units * PRICE;
        return totalPrice;
    }
 
    public double getTaxPrice(double totalPrice){
        taxPrice = totalPrice + (totalPrice * TAX);
        return taxPrice;
    }
}

Now given this table by my professor:
 
Number of bags sold       Weight per bag
24                                4
13                                12
72                                2
2                                  6
.... (and so on)               .... (and so on)

I get this output:

				Coffee Table
Enter Weight of Bag: 
4
Enter number of units: 
24
Number of bags sold	Weight per bag	Price per pound	Total Price	Price with tax
24.0			4.0		$5.99		575.04		616.7303999999999
Enter Weight of Bag: 
12
Enter number of units: 
13
Number of bags sold	Weight per bag	Price per pound	Total Price	Price with tax
13.0			12.0		$5.99		934.44		1002.1869
Enter Weight of Bag: 
2
Enter number of units: 
72
Number of bags sold	Weight per bag	Price per pound	Total Price	Price with tax
72.0			2.0		$5.99		862.5600000000001

Now the only thing I can't determine is how to design it so that the outputs accumulate in a single table rather than separately. Or someone puts in all the inputs and the entire output table is created (sorry for putting the table and output in code but I couldn't maintain formatting otherwise).

I appreciate your reply . I've since found out you weren't kidding when you said there were a number of ways to do this, however, I certainly like the way you've laid it out.