Question

A retail company must file a monthly sales tax report listing the total sales for the month, and the amount of state and county sales tax collected. The state sales tax rate is 5 percent and the county sales tax rate is 3 percent. Create a GUI application that allows the user to enter the total sales for the month into a text field. From this figure, the application should calculate and display the following: The number of county sales tax The amount of state sales tax The total sales tax (county plus state)

Answer 1

CODE: SalesTax.java

import javax.swing.*;
import java.awt.event.*;
class MonthlySalesTax extends JFrame{
   private JPanel panel;
   private JLabel messageLabel_monthlysales;
   private JTextField monthlysalesTextField;
   private JButton saletaxButton;
   private final int WINDOW_WIDTH = 250;
   private final int WINDOW_HEIGHT = 250;
   public MonthlySalesTax(){
       setTitle("Monthly Sales Tax");
       setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       buildPanel();
       add(panel);
       setVisible(true);
   }
   private void buildPanel(){
       messageLabel_monthlysales = new JLabel("Enter Total sales for the month ");
       monthlysalesTextField = new JTextField(10);
       saletaxButton = new JButton("Calculate Monthly Sales Tax");
       saletaxButton.addActionListener(new CalculateMST());
       panel = new JPanel();  
       panel.add(messageLabel_monthlysales);
       panel.add(monthlysalesTextField);
       panel.add(saletaxButton);
   }
   public class CalculateMST implements ActionListener{
       public void actionPerformed(ActionEvent e){
           String input;
           double CountyTax;
           double StateTax;
           double TotalsalesTax;
           input = monthlysalesTextField.getText();
           CountyTax = (Double.parseDouble(input)* 0.03);
           StateTax = (Double.parseDouble(input)* 0.05);
           TotalsalesTax = (CountyTax + StateTax);
           JOptionPane.showMessageDialog(null, " The Amount Of County Sales Tax : " + CountyTax + "\n The Amount Of State Sales Tax : "
               + StateTax +   "\n The Total Sales Tax : " + TotalsalesTax );
       }
   }
}
public class SalesTax{
   public static void main(String[] args){
        MonthlySalesTax ST = new MonthlySalesTax();
   }
}

SCREENSHOT OF THE CODE:

OUTPUT:

The total sales for the month i have taken 20000.

5% on The State sales tax is 1000.0 = (5/100)*20000.

3% in County sales tax is 600.0 = (3/100) *20000