class-assignments/JPizza.java at master · nick-devos/class-assignments · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
//Chapter 14: Exercise 6
//JPizza.java
//Programmer: Nick DeVos
//Date: 4/8/18

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class JPizza extends JFrame implements ItemListener, ActionListener
{
   //create compnents
   FlowLayout flowLayout = new FlowLayout();
   JLabel label = new JLabel("Please choose your pizza size");
   JLabel label2 = new JLabel("Which toppings would you like? ($1 each)");
   JLabel label3 = new JLabel("");
   JRadioButton small = new JRadioButton("Small ($7)");
   JRadioButton medium = new JRadioButton("Medium ($9)");
   JRadioButton large = new JRadioButton("Large ($11)");
   JRadioButton extraLarge = new JRadioButton("Extra-Large ($14)");
   JCheckBox pepperoni = new JCheckBox("Pepperoni");
   JCheckBox chicken = new JCheckBox("Chicken");
   JCheckBox bacon = new JCheckBox("Bacon");
   JCheckBox ham = new JCheckBox("Ham");
   JCheckBox mushrooms = new JCheckBox("Mushrooms");
   JButton orderButton = new JButton("Place Order");
   private String pizzaSize = "";
   private double pizzaPrice;

   //create button group
   ButtonGroup rButtonGroup = new ButtonGroup();

   public JPizza()
   {
      //call super
      super("Pizza Order");

      //form settings
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setLayout(flowLayout);

      //add radio buttons to group
      rButtonGroup.add(small);
      rButtonGroup.add(medium);
      rButtonGroup.add(large);
      rButtonGroup.add(extraLarge);

      //add components to JFrame
      add(label);
      add(small);
      add(medium);
      add(large);
      add(extraLarge);
      add(label2);
      add(pepperoni);
      add(chicken);
      add(bacon);
      add(ham);
      add(mushrooms);
      add(orderButton);
      add(label3);

      //set font for label
      label.setFont(new Font("Arial", Font.ITALIC, 24));
      label2.setFont(new Font("Arial", Font.ITALIC, 22));

      //register listeners
      small.addItemListener(this);
      medium.addItemListener(this);
      large.addItemListener(this);
      extraLarge.addItemListener(this);
      orderButton.addActionListener(this);
   }

   //main method
   public static void main(String[] args)
   {
      final int FRAME_WIDTH = 425;
      final int FRAME_HEIGHT = 225;

      //instantiate frame object
      JPizza frame = new JPizza();

      //set attributes
      frame.setBounds(500, 400, FRAME_WIDTH, FRAME_HEIGHT);
      frame.setVisible(true);
   }

   //override the ItemListener
   @Override
   public void itemStateChanged(ItemEvent e)
   {
      //determine the source
      Object source = e.getItem();

      if(source == small)
      {
         pizzaSize = "small";
      }
      else if(source == medium)
      {
         pizzaSize = "medium";
      }
      else if(source == large)
      {
         pizzaSize = "large";
      }
      else if(source == extraLarge)
      {
         pizzaSize = "extraLarge";
      }
      else
      {
         pizzaSize = "error";
      }
   }

   //overrider the ActionListener
   @Override
   public void actionPerformed(ActionEvent a)
   {
      switch(pizzaSize)
      {
         case "small": pizzaPrice = 7;
            break;
         case "medium": pizzaPrice = 9;
            break;
         case "large": pizzaPrice = 11;
            break;
         case "extraLarge": pizzaPrice = 14;
            break;
      }

      if(pepperoni.isSelected())
      {
         pizzaPrice += 1;
      }
      if(chicken.isSelected())
      {
         pizzaPrice += 1;
      }
      if(bacon.isSelected())
      {
         pizzaPrice += 1;
      }
      if(ham.isSelected())
      {
         pizzaPrice += 1;
      }
      if(mushrooms.isSelected())
      {
         pizzaPrice += 1;
      }

      label3.setText("Your order total is: $" + pizzaPrice);
   }
}