A Basic Form Applet
Q
Dear Selena,
Can you help me make a code for four labels and a textfield each with a send request button below?
I am currently studying on my own java programming.
Name Textfield
Street Address Textfield
City, Street Address, Zip Code Textfield
Requested Info Textfield
Send Request(button)
Looking forward from your help.
More power and regards.
A
This is in no way a well-written Java solution, but it should give you the basic idea....
Test.java
import java.awt.Label;
import java.awt.TextField;
import java.awt.Button;
import java.awt.Event;
import java.net.URL;
import java.io.IOException;
import java.io.DataInputStream;
import java.applet.Applet;
public class Test extends Applet {
private Label nameLabel;
private TextField nameValue;
private Label streetAddrLabel;
private TextField streetAddrValue;
private Button submitButton;
public void init() {
setLayout(null);
nameLabel = new Label("Name");
nameLabel.reshape(10,10,100,25);
add(nameLabel);
nameValue = new TextField();
nameValue.reshape(110,10,100,25);
add(nameValue);
streetAddrLabel = new Label("Street Address");
streetAddrLabel.reshape(10,40,100,25);
add(streetAddrLabel);
streetAddrValue = new TextField();
streetAddrValue.reshape(110,40,100,25);
add(streetAddrValue);
submitButton = new Button("Send Request");
submitButton.reshape(110,70,100,25);
add(submitButton);
}
public boolean handleEvent(Event evt) {
if (evt.target == submitButton &&
evt.id == Event.ACTION_EVENT) {
try {
String url = getCodeBase() +
"cgi-bin/test.cgi?fname=" +
nameValue.getText() +
"&strAddr=" +
streetAddrValue.getText();
URL cgiScript = new URL(url);
System.out.println("URL: " + url);
DataInputStream dis = new
DataInputStream(cgiScript.openStream());
String line = dis.readLine();
while ((line != null)) {
System.out.println(line);
line = dis.readLine();
}
}
catch (IOException e){
System.out.println("Error reading CGI: " +
e.getMessage());
}
}
return super.handleEvent(evt);
}
Test.html
<HTML>
<HEAD>
<TITLE>Test Applet</TITLE>
</HEAD>
<BODY>
<APPLET CODE = "Test.class" WIDTH = "600" HEIGHT = "400">
</APPLET>
</BODY>
</HTML>
Test.cgi
#!/usr/local/bin/perl
use CGI;
$CGI = new CGI();
print $CGI->header();
print $CGI->param('fname');
print $CGI->param('strAddr');
}
Selena Sol contributes to the JavaBoutique's Introduction to Java. Selena curently works for Barclays Capital in London, one of the leading global investment banks in Europe and has worked as a software developer for the National Center for Human Genome research, Microline Software, Neuron Data, and Electric Eye in Singapore. Selena is perhaps best-known for creating the Public Domain Web Script Archive (Extropia) and writing several books on Web Programming (Perl, CGI, Java).
Email: selena@extropia.com
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