Calculate Tax

[bputley]

does anyone know where there is an example of how to write code for tax added on to the subtotal to equal price? I looked in the tutorials but didnt see anything like it, and I dont just want people to do my work for me because I want to learn how to write code myself. I am a beginner just to let you know

[Ganon11]

If you have the tax rate (a.k.a. 5%) and the subtotal (e.g. $10.00), you can multiply the subtotal by the percentage to determine the amount of tax to add - then add that amount to the subtotal to find the total.

The tax rate will either be held as a decimal (a.k.a. 5% would be 0.05) or as an integer (a.k.a. 5% would be 5), and your calculations will have to differ accordingly - if you hold it as a decimal, you can multiply straight away, but if you hold it as an integer, you will have to divide by 100.0 before multiplying.

[bputley]

could someone please help, I have been working on this the last couple days trying to figure out why this wont accept the Tax code I put in there,

/*
* Order1.java
*
* Created on December 18, 2006, 6:16 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/

/**
*
* @author test
*/
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.lang.NumberFormatException;

public class Order1
{
public static void main(String[] args)
{
MyOrder1 myFrame = new MyOrder1() ;

myFrame.setVisible(true) ;
}
}

class MyOrder1 extends JFrame implements ActionListener
{
private static final int WIDTH = 200 ;
private static final int HEIGHT = 200 ;
private static final int X_ORIGIN = 400 ;
private static final int Y_ORIGIN = 200 ;

// create new buttons and label them
private JButton Total ;
private JButton Reset ;
private JTextField ChickenField ;
private JTextField PorkField ;
private JTextField CattleField ;
private JTextField TotalField ;
private JTextField TaxField;

private Component Tax;



//creates new label icons for my items
public MyOrder1()
{


String Response = new String() ;
JLabel Chicken = new JLabel("Chicken: $1.19 LB ") ;
JLabel Pork = new JLabel (" Pork: $2.17 LB ") ;
JLabel Cattle = new JLabel(" Cattle: $3.27 LB ") ;
JLabel tax = new JLabel(" Tax: ") ;
JLabel total = new JLabel(" Total : ");
ChickenField = new JTextField(5) ;
PorkField = new JTextField(5) ;
CattleField = new JTextField(5) ;
TaxField = new JTextField(5) ;
TotalField = new JTextField(5) ;
ChickenField.setText("0") ;
PorkField.setText("0") ;
CattleField.setText("0") ;
TotalField.setText("") ;

Total = new JButton("Total") ;
Total.addActionListener(this) ;

Reset = new JButton("Reset") ;
Reset.addActionListener(this) ;




// get the content pane
Container contentPane = getContentPane() ;

// create a new layout manager for the pane
FlowLayout aLayout = new FlowLayout() ;

// assign the new layout manager to the content pane
contentPane.setLayout(aLayout) ;

// add the "Exit" button to the content pane
contentPane.add(Chicken) ;
contentPane.add(ChickenField) ;
contentPane.add(Pork) ;
contentPane.add(PorkField) ;
contentPane.add(Cattle) ;
contentPane.add(CattleField) ;
contentPane.add(Tax) ;
contentPane.add(TaxField) ;
contentPane.add(total) ;
contentPane.add(TotalField) ;
contentPane.add(Total) ;
contentPane.add(Reset) ;

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(X_ORIGIN, Y_ORIGIN, WIDTH, HEIGHT) ;
}

public void actionPerformed(ActionEvent e)
{
String chicken, pork, cattle;
float ayam=0, babi=0, sapi=0;
int i;

Object source = e.getSource() ;

if (source == Reset)
{
ChickenField.setText("0") ;
PorkField.setText("0") ;
CattleField.setText("0") ;
TotalField.setText("0") ;
}
else if (source == Total)
{
i = 0;
try
{
chicken = ChickenField.getText();
ayam = Float.valueOf(chicken).floatValue();
}
catch (Exception d)
{
JOptionPane.showMessageDialog(null, "Quantity of Chicken is not valid...", "Error",
JOptionPane.ERROR_MESSAGE);
i=1;
}
try
{
pork = PorkField.getText();
babi = Float.valueOf(pork).floatValue();
}
catch (Exception d)
{
JOptionPane.showMessageDialog(null, "Quantity of Pork is not valid...", "Error",
JOptionPane.ERROR_MESSAGE);
i=1;
}
try
{
cattle = CattleField.getText();
sapi = Float.valueOf(cattle).floatValue();
}
catch (Exception d)
{
JOptionPane.showMessageDialog(null, "Quantity of Cattle is not valid...", "Error",
JOptionPane.ERROR_MESSAGE);
i=1;
}
if (i==0)
{
float total = ayam * 1.19f + babi * 2.17f + sapi * 3.27f ;
String tot= String.valueOf(total);
TotalField.setText(tot) ;


double tax = 0;
tax = (total * 0.08);
String setTax = "" + Tax;
JLabel tax.setText("setTax") ;

total = total + tax;

[bputley]

can someone please help

[r035198x]

can someone please help

Sorry most people had been away.

Is this what you want

/*
* Order1.java
*
* Created on December 18, 2006, 6:16 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
 
/**
*
* @author test
*/
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.lang.NumberFormatException;
 
public class Order1 {
    public static void main(String[] args) {
        MyOrder1 myFrame = new MyOrder1() ;
        myFrame.setVisible(true) ;
    }
 
}
 
class MyOrder1 extends JFrame implements ActionListener {
    private static final int WIDTH = 200 ;
    private static final int HEIGHT = 200 ;
    private static final int X_ORIGIN = 400 ;
    private static final int Y_ORIGIN = 200 ;
 
    // create new buttons and label them
    private JButton Total ;
    private JButton Reset ;
    private JTextField ChickenField ;
    private JTextField PorkField ;
    private JTextField CattleField ;
    private JTextField TotalField ;
    private JTextField TaxField;
 
    private Component Tax;
    JLabel tax;
    //creates new label icons for my items
    public MyOrder1() {
        String Response = new String() ;
        JLabel Chicken = new JLabel("Chicken: $1.19 LB ") ;
        JLabel Pork = new JLabel (" Pork: $2.17 LB ") ;
        JLabel Cattle = new JLabel(" Cattle: $3.27 LB ") ;
        tax = new JLabel(" Tax: ") ;
        JLabel total = new JLabel(" Total : ");
        ChickenField = new JTextField(5) ;
        PorkField = new JTextField(5) ;
        CattleField = new JTextField(5) ;
        TaxField = new JTextField(5) ;
        TotalField = new JTextField(5) ;
        ChickenField.setText("0") ;
        PorkField.setText("0") ;
        CattleField.setText("0") ;
        TotalField.setText("") ;
 
        Total = new JButton("Total") ;
        Total.addActionListener(this) ;
 
        Reset = new JButton("Reset") ;
        Reset.addActionListener(this) ;
 
 
 
 
        // get the content pane
        Container contentPane = getContentPane() ;
 
        // create a new layout manager for the pane
        FlowLayout aLayout = new FlowLayout() ;
 
        // assign the new layout manager to the content pane
        contentPane.setLayout(aLayout) ;
 
        // add the "Exit" button to the content pane
        contentPane.add(Chicken) ;
        contentPane.add(ChickenField) ;
        contentPane.add(Pork) ;
        contentPane.add(PorkField) ;
        contentPane.add(Cattle) ;
        contentPane.add(CattleField) ;
        contentPane.add(tax) ;
        contentPane.add(TaxField) ;
        contentPane.add(total) ;
        contentPane.add(TotalField) ;
        contentPane.add(Total) ;
        contentPane.add(Reset) ;
 
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(X_ORIGIN, Y_ORIGIN, WIDTH, HEIGHT) ;
    }
    public void actionPerformed(ActionEvent e) {
        String chicken, pork, cattle;
        float ayam=0, babi=0, sapi=0;
        int i;
 
        Object source = e.getSource() ;
 
        if (source == Reset) {
            ChickenField.setText("0") ;
            PorkField.setText("0") ;
            CattleField.setText("0") ;
            TotalField.setText("0") ;
        }
        else if (source == Total) {
            i = 0;
            try {
                chicken = ChickenField.getText();
                ayam = Float.valueOf(chicken).floatValue();
            }
            catch (Exception d) {
                JOptionPane.showMessageDialog(null, "Quantity of Chicken is not valid...", "Error",
                JOptionPane.ERROR_MESSAGE);
                i=1;
            }
            try {
                pork = PorkField.getText();
                babi = Float.valueOf(pork).floatValue();
            }
            catch (Exception d) {
                JOptionPane.showMessageDialog(null, "Quantity of Pork is not valid...", "Error",
                JOptionPane.ERROR_MESSAGE);
                i=1;
            }
            try    {
                cattle = CattleField.getText();
                sapi = Float.valueOf(cattle).floatValue();
            }
            catch (Exception d)    {
                JOptionPane.showMessageDialog(null, "Quantity of Cattle is not valid...", "Error",
                JOptionPane.ERROR_MESSAGE);
                i=1;
            }
            if (i==0) {
                double total = ayam * 1.19 + babi * 2.17 + sapi * 3.27 ;
                double taxAmount = 0.0;
                taxAmount = (total * Double.parseDouble(TaxField.getText()));
                String setTax = "" + taxAmount;
                tax.setText("Tax:"+setTax) ;
                total = total + taxAmount;
                String tot= String.valueOf(total);
                TotalField.setText(tot);
            }
        }
    }
}

[bputley]

thanks that was what I was looking for

[r035198x]

thanks that was what I was looking for

Welcome. Hope to see you around asking or helping others as well.