1 /*
2 * File: pizza.java
3 *
4 * Java pizza applet using CGI scripts and GridBagLayout
5 *
6 */
7
8 import java.awt.*;
9 import java.awt.event.*;
10 import java.applet.*;
11 import java.util.*;
12 import java.net.*;
13 import java.io.*;
14
15 public class pizza extends Applet implements ActionListener
16 {
17 private Choice yesNo;
18 private Choice name;
19
20
21 private TextField addressField = new TextField();
22 private TextField phoneField = new TextField();
23 private TextField pizzaField = new TextField();
24
25 private CheckboxGroup topping;
26 private CheckboxGroup Ordertopping;
27 private String str;
28 private TextArea TAspecials;
29 private TextArea TAorder;
30
31
32 private void add(Component c,
33 GridBagLayout gbl, GridBagConstraints gbc,
34 int x, int y, int w, int h)
35
36 { gbc.gridx = x;
37 gbc.gridy = y;
38 gbc.gridwidth = w;
39 gbc.gridheight = h;
40 gbl.setConstraints(c, gbc);
41 add(c);
42 }
43
44
45
46 public void init()
47 {
48 Component c;
49 resize(600,1000);
50 GridBagLayout gbl=new GridBagLayout();
51 setLayout(gbl);
52 GridBagConstraints gbc= new GridBagConstraints();
53 gbc.fill=GridBagConstraints.BOTH;
54 gbc.weightx=100;
55 gbc.weighty=100;
56 setFont(new Font("TimesRoman", Font.BOLD, 16));
57 int yoff=1;
58
59
60 c=new Label("Fill-Out Form Example");
61 c.setFont(new Font("TimesRoman", Font.BOLD, 34));
62 add(c,gbl,gbc,0,0,4,2);
63
64 c=new Label(" A fill-out form example, with multiple text entry fields and radio buttons..");
65 c.setFont(new Font("Curier", Font.BOLD, 13));
66 add(c,gbl,gbc,0,2,4,1);
67
68
69 c=new Label("Internet Pizza Delivery Service");
70 c.setFont(new Font("TimesRoman", Font.BOLD, 24));
71 add(c,gbl,gbc,0,3,4,1);
72
73 c=new Label(" ====================================================================================================================");
74 c.setFont(new Font("TimesRoman", Font.BOLD, 8));
75 add(c,gbl,gbc,0,4,4,1);
76
77 /*_____________________________________________________________*/
78 yoff=5;
79 add(new Label(" "),gbl,gbc,0,yoff,4,1);
80 c=new Label("Would you like to view (today's) specials?");
81 c.setFont(new Font("TimesRoman", Font.BOLD, 18));
82 c.setForeground(Color.red);
83 add(c,gbl,gbc,0,yoff+1,4,1);
84
85
86 gbc.fill=GridBagConstraints.NONE;
87 yesNo= new Choice();
88 yesNo.setFont(new Font("TimesRoman", Font.BOLD, 16));
89 yesNo.addItem("Yes");
90 yesNo.addItem("No");
91 add(yesNo,gbl,gbc,1,yoff+2,1,1);
92
93 gbc.fill=GridBagConstraints.VERTICAL;
94 Button vs=new Button("View Specials");
95 vs.addActionListener(this);
96 c=vs;
97 c.setBackground(Color.yellow);
98 c.setForeground(Color.blue);
99 add(vs,gbl,gbc,2,yoff+2,1,1);
100
101 gbc.fill=GridBagConstraints.BOTH;
102 TAspecials=new TextArea(10,40);
103 add(TAspecials,gbl,gbc,0,yoff+3,4,4);
104
105 /*______________________________________________________________*/
106 yoff=yoff+9;
107
108 add(new Label(" "),gbl,gbc,0,yoff-1,4,1);
109 c=new Label("Order Form");
110 c.setFont(new Font("TimesRoman", Font.BOLD, 18));
111 c.setForeground(Color.red);
112 add(c,gbl,gbc,0,yoff,4,1);
113
114
115 Panel address =new Panel();
116 address.setLayout(new GridLayout(3,2));
117 address.setFont(new Font("TimesRoman", Font.BOLD, 14));
118 address.add(new Label("Type in your street address:"));
119 address.add(addressField=new TextField(20));
120 address.add(new Label("Type in your phone number:"));
121 address.add(phoneField=new TextField(10));
122 address.add(new Label("Choose a special pizza:"));
123 address.add(pizzaField=new TextField(20));
124 add(address,gbl,gbc,0,yoff+1,4,4);
125 c=new Label("Or you may prefer to choose a topping for your pizza: ");
126 c.setFont(new Font("TimesRoman", Font.BOLD, 15));
127 add(c,gbl,gbc,0,yoff+5,4,1);
128
129 Panel pTop2=new Panel();
130 pTop2.setLayout(new GridLayout(3,1));
131 Ordertopping = new CheckboxGroup();
132 pTop2.add(new Checkbox("Pepperoni",Ordertopping,true));
133 pTop2.add(new Checkbox("Sausage",Ordertopping,false));
134 pTop2.add(new Checkbox("Anchovy",Ordertopping,false));
135 gbc.fill=GridBagConstraints.NONE;
136 add(pTop2,gbl,gbc,2,yoff+6,2,2);
137
138
139 gbc.fill=GridBagConstraints.HORIZONTAL;
140 Button op = new Button("Order Pizza");
141 op.addActionListener(this);
142 c = op;
143 c.setBackground(Color.yellow);
144 add(c,gbl,gbc,0,yoff+7,1,1);
145
146
147
148 gbc.fill=GridBagConstraints.BOTH;
149 TAorder=new TextArea(10,40);
150 add(TAorder,gbl,gbc,0,yoff+8,4,4);
151
152 add(new Label(" "),gbl,gbc,0,yoff+12,4,1);
153 c=new Label("class example. Please send comments to njm@npac.syr.edu. 2/28/96.");
154 c.setFont(new Font("Courier", Font.BOLD, 12));
155 c.setForeground(Color.green);
156 add(c,gbl,gbc,0,yoff+13,4,1);
157
158 }
159
160 public void actionPerformed(ActionEvent evt)
161 {
162 if (evt.getActionCommand().equals("View Specials"))
163 { handleViewSpecials(); }
164
165 else if (evt.getActionCommand().equals("Order Pizza"))
166 { handleOrderPizza(); }
167 }
168
169
170 public void handleViewSpecials()
171 {
172 String sdata;
173 String rdata;
174 sdata= "todayspecials=" + yesNo.getSelectedItem();
175 String Script="/users-cgi/njm/Java/javapizzaspecials.pl";
176 rdata=Network(sdata,Script);
177 TAspecials.setText(rdata);
178 }
179
180 public void handleOrderPizza()
181 {
182 String sdata;
183 String rdata;
184 Checkbox c=Ordertopping.getSelectedCheckbox();
185
186 sdata = "address=" + addressField.getText()
187 + "&phone=" + phoneField.getText()
188 + "&specialorder="+pizzaField.getText()
189 + "&topping="+c.getLabel();
190 String Script="/users-cgi/njm/Java/javapizza2.pl";
191 rdata=Network(sdata,Script);
192 TAorder.setText(rdata);
193
194 }
195
196 public String Network(String sdata,String script)
197 { String home = "osprey7.npac.syr.edu";
198
199 int port = 3768;
200 Socket s = null;
201 String rdata = "";
202 /* return sdata; */
203 try
204 {
205 s = new Socket(home, port);
206
207 DataOutputStream os
208 = new DataOutputStream(s.getOutputStream());
209 BufferedReader is
210 = new BufferedReader
211 (new InputStreamReader(s.getInputStream()));
212
213 os.writeBytes("POST " + script
214 + " HTTP/1.0\r\n"
215 + "Content-type: application/octet-stream\r\n"
216 + "Content-length: "
217 + sdata.length() + "\r\n\r\n");
218 os.writeBytes(sdata);
219
220 String line="";
221 while (((line = is.readLine()) != null)
222 && !(line.startsWith("Content-type:")))
223 { };
224
225 while ((line = is.readLine()) != null)
226 { rdata += line + "\n";}
227 showStatus(rdata);
228 is.close();
229 os.close();
230 }
231 catch (Exception e)
232 { showStatus("Error " + e);
233 if (s != null)
234 try
235 { s.close(); }
236 catch (IOException ex) {}
237 }
238 return rdata;
239 }
240 }
241
242
243