Question

Project overview: Create a java graphics program that displays an order menu and bill from a Sandwich shop, or any other establishment you prefer. In this program the design is left up to the programmer however good object oriented design is required. Below are two images that should be used to assist in development of your program. Items are selected on the Order Calculator and the Message window that displays the Subtotal, Tax and Total is displayed when the Calculate Button is pressed. You can also combine the two functions in the same panel if you wish. 2 Order Calculator Welcome to Johnny's Sandwich Shop Bread Meat Cheese Coffee Cheese None White Roast Beef O Regular coffee Turkey Decaf coffee Wheat Ham Cappuccino X Message i) Subtotal: $4.75 Tax: $0.28 Total: $5.04 OK Calculate Exit

Answer 1

SOurceCode:

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;

public class MyFrame {
  
public static void main(String[] args) {

JFrame frame = new JFrame("Order Calculator");

frame.setSize(500, 500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  
JPanel panel = new JPanel();

frame.add(panel);

placeComponents(panel);

frame.setVisible(true);
}

private static void placeComponents(JPanel panel) {

String bread;String coffee; boolean cheese=false,ham=false,turkey=false,beef=false;
panel.setLayout(null);
JLabel welcomeLabel = new JLabel("Welcome to Johnny's Sandwich Shop");
welcomeLabel.setBounds(20,0,300,20);
panel.add(welcomeLabel);
  
JLabel breadLabel = new JLabel("bread");
breadLabel.setBounds(10,21,100,20);
panel.add(breadLabel);
  
       JRadioButton option1 = new JRadioButton("White");
JRadioButton option2 = new JRadioButton("Wheat");

ButtonGroup group = new ButtonGroup();
group.add(option1);
group.add(option2);

  
option1.setBounds(10,41,100,20);
panel.add(option1);
option1.setSelected(true);
option2.setBounds(110,41,100,20);
panel.add(option2);

if(option1.isSelected())
   bread="white";
else
   bread="wheat";
  
JLabel meatLabel = new JLabel("meat/cheese");
meatLabel.setBounds(10,81,100,20);
panel.add(meatLabel);

JCheckBox cheesecheckbox = new JCheckBox("Cheese", true);
JCheckBox beefcheckbox = new JCheckBox("Beef", false);
JCheckBox turkeycheckbox = new JCheckBox("Turkey", false);
JCheckBox hamcheckbox = new JCheckBox("Ham",false);

cheesecheckbox.setBounds(10,101,100,20);
panel.add(cheesecheckbox);
beefcheckbox.setBounds(110,101,100,20);
panel.add(beefcheckbox);
turkeycheckbox.setBounds(210,101,100,20);
panel.add(turkeycheckbox);
hamcheckbox.setBounds(310,101,100,20);
panel.add(hamcheckbox);

JLabel coffeeLabel = new JLabel("coffee");
coffeeLabel.setBounds(10,121,100,20);
panel.add(coffeeLabel);
  
if(cheesecheckbox.isSelected())
   cheese=true;
  
if(beefcheckbox.isSelected())
   cheese=true;
  
if(turkeycheckbox.isSelected())
   cheese=true;
  
if(hamcheckbox.isSelected())
   cheese=true;
  
JRadioButton option21 = new JRadioButton("None");
JRadioButton option22 = new JRadioButton("Regular");
JRadioButton option23 = new JRadioButton("Decaf");
JRadioButton option24 = new JRadioButton("Cappuchino");

ButtonGroup group1 = new ButtonGroup();
group1.add(option21);
group1.add(option22);
group1.add(option23);
group1.add(option24);

  
option21.setBounds(10,141,100,20);
panel.add(option21);
option21.setSelected(true);
option22.setBounds(110,141,100,20);
panel.add(option22);
option23.setBounds(210,141,100,20);
panel.add(option23);
option24.setBounds(310,141,100,20);
panel.add(option24);
  
if(option21.isSelected())
   coffee="none";
else if(option22.isSelected())
   coffee="regular";
else if(option23.isSelected())
   coffee="decaf";
else
   coffee="cappuchino";
  
JButton close = new JButton("Close");
close.addActionListener(new CloseListener());
close.setBounds(10,181,100,20);
panel.add(close);
  
JButton calculate = new JButton("Calculate");
calculate.addActionListener(new CalculateListener(bread,coffee,cheese,beef,turkey,ham));
calculate.setBounds(110,181,100,20);
panel.add(calculate);
          

}

}
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class CalculateListener implements ActionListener{

   private double subtotal;
   private double white_bread;
   private double wheat_bread;
   private double cheese;
   private double beef;
   private double turkey;
   private double ham;
  
   private double regular;
   private double capuccino;
   private double decaf;
  
   public CalculateListener(String bread, String coffee, boolean cheese2, boolean beef2, boolean turkey2, boolean ham2) {
      
       subtotal=0;
       white_bread=0.99;
       wheat_bread=0.99;
           cheese=0.50;
           beef=0.50;
       turkey=0.50;
       ham=0.50;
             
           regular=2.99;
           capuccino=3.99;
           decaf=4.99;
          
          
          
           if(bread.equals("white"))
               subtotal+=white_bread;
           else
               subtotal+=wheat_bread;
          
           if(coffee.equals("none"))
               subtotal+=0;
           else if(coffee.equals("regular"))
               subtotal+=regular;
           else if(coffee.equals("decaf"))
               subtotal+=decaf;  
           else
               subtotal+=capuccino;
          
           if(cheese2)
               subtotal+=cheese;
           if(ham2)
               subtotal+=ham;
               if(turkey2)
                   subtotal+=turkey;
          
           if(beef2)
               subtotal+=beef;
          
   }

   @Override
   public void actionPerformed(ActionEvent e) {
  
      
      
       JFrame frame = new JFrame("Bill generator");
     
   frame.setSize(500, 500);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  
   JPanel panel = new JPanel();
     
   JLabel subtotalLabel = new JLabel("Subtotal: "+subtotal+"$");
   subtotalLabel.setBounds(20,0,300,20);
   panel.add(subtotalLabel);
     
   JLabel taxLabel = new JLabel("tax: "+0.17*subtotal+"$");
   taxLabel.setBounds(20,100,300,20);
   panel.add(taxLabel);
     
   JLabel totalLabel = new JLabel("total: "+1.17*subtotal+"$");
       totalLabel.setBounds(20,200,300,20);
       panel.add(totalLabel);
  
       JButton close = new JButton("Close");
       close.addActionListener(new CloseListener());
       close.setBounds(20,300,100,20);
       panel.add(close);
     
  
   frame.add(panel);
     
   frame.setVisible(true);
     
   }
     
  
}
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class CloseListener implements ActionListener {

   @Override
   public void actionPerformed(ActionEvent e) {
   //DO SOMETHING
   System.exit(0);
   }

}

Order Calculator - Х Welcome to Johnny's Sandwich Shop bread O White O Wheat meat cheese ✓ Cheese Beef Turkey Ham coffee O None O Regular Decaf O Cappuchino Close Calculate

Bill generator Х Subtotal: 1.49$ tax: 0.2533$ total: 1.7432999999999998$ Close