// File: BasicApplet.java
// Author: Nicholas Duchon
// Date: March 22, 2007
// To run as a web page, see the javadoc comments
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
/**
The following is a simple web page that will run this program,
remove the spaces after each < to use this page:
< html> < body>
< center>
< h1>The BasicApplet by Nicholas Duchon< /h1>
< applet code=BasicApplet.java width=300 height=200>
< /applet>
< /center>
< /body> < /html>
< ul>
< li>
< a href="BasicApplet.java">The source code.
< /li>
< li>
< a href="runBasicApplet.html">Run the BasicApplet applet.
< /li>
< li>
< a href="PrintfExample.java">PrintfExample.java source code.
< /li>
< li>
< a href="ScannerExample.java">ScannerExample.java source code.
< /li>
< /ul>
*/
public class BasicApplet
extends JApplet
implements ActionListener
{
JLabel jhb = new JLabel ("Press buttons", JLabel.CENTER);
JLabel jht = new JLabel ("Hit return for text fields", JLabel.CENTER);
JButton jb1 = new JButton ("one");
JButton jb2 = new JButton ("two");
JButton jb3 = new JButton ("three");
JButton jb4 = new JButton ("four");
JButton jb5 = new JButton ("five");
JButton jb6 = new JButton ("six");
JTextField jt1 = new JTextField ("one");
JTextField jt2 = new JTextField ("one");
JTextField jt3 = new JTextField ("one");
JTextField jt4 = new JTextField ("one");
JTextField jt5 = new JTextField ("one");
JTextField jt6 = new JTextField ("one");
JLabel jL1 = new JLabel ("Input echo:", JLabel.RIGHT);
JTextField jtz = new JTextField ();
public void init () {
Container c = getContentPane ();
c.setLayout (new GridLayout (0, 2));
c.add (jhb);
c.add (jht);
c.add (jb1);
c.add (jt1);
c.add (jb2);
c.add (jt2);
c.add (jb3);
c.add (jt3);
c.add (jb4);
c.add (jt4);
c.add (jb5);
c.add (jt5);
c.add (jb6);
c.add (jt6);
c.add (jL1);
c.add (jtz);
jb1.addActionListener (this);
jb2.addActionListener (this);
jb3.addActionListener (this);
jb4.addActionListener (this);
jb5.addActionListener (this);
jb6.addActionListener (this);
jt1.addActionListener (this);
jt2.addActionListener (this);
jt3.addActionListener (this);
jt4.addActionListener (this);
jt5.addActionListener (this);
jt6.addActionListener (this);
} // end method init
public void actionPerformed (ActionEvent e) {
Object s = e.getSource ();
if (s == jb1) jtz.setText ("Button one");
if (s == jb2) jtz.setText ("Button two");
if (s == jb3) jtz.setText ("Button three");
if (s == jb4) jtz.setText ("Button four");
if (s == jb5) jtz.setText ("Button five");
if (s == jb6) jtz.setText ("Button six");
if (s == jt1) jtz.setText (jt1.getText());
if (s == jt2) jtz.setText (jt2.getText());
if (s == jt3) jtz.setText (jt3.getText());
if (s == jt4) jtz.setText (jt4.getText());
if (s == jt5) jtz.setText (jt5.getText());
if (s == jt6) jtz.setText (jt6.getText());
} // end method ActionPerformed
public static void main (String args []) {
String title = "BasicApplet by Nick Duchon";
JFrame hostFrame = new JFrame (); // create a display window
hostFrame.setTitle (title); // sets display window's title
hostFrame.setSize (300,200); // set the display window size, MUST set this value
BasicApplet a = new BasicApplet (); // instantiate the applet
hostFrame.add(a); // add applet to window frame
a.init(); // init applet
a.start(); // start applet
String title2 = "BasicApplet - Number 2"; // title of second window
JFrame hostFrame2 = new JFrame (); // create a second display window
hostFrame2.setTitle (title2); // sets display window's title
hostFrame2.setSize (300,200); // set the display window size, MUST set this value
BasicApplet a2 = new BasicApplet (); // instantiate the applet a second time
hostFrame2.add(a2); // add the second applet to the second window frame
a2.init(); // init applet number 2
a2.start(); // start applet number 2
hostFrame2.setVisible (true); // show the second applet
hostFrame.setVisible (true); // show first applet, default: window hidden
// next line exits on x button of window
hostFrame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
// The OLD style, EXIT_ON_CLOSE since JDK 1.3
// hostFrame.addWindowListener( // make sure application quits on x button
// new WindowAdapter() {
// public void windowClosing (WindowEvent e) {
// System.exit (0);
// } // end window closing event handler
// } // end window adapter
// ); // end window listenter
} // end call with main, also.
} // end class BasicApplet
ND.