Close
Login to Your Account
Faadooengineers

Results 1 to 2 of 2

Thread: Difference between applets and html??

  1. #1

    Favorite 32 Difference between applets and html??

    Hey FaaDoOs..

    I have a query..

    What is the difference between applets and html?





  2. #2
    If you are willing to accept an answer from non-computer engineer; here it goes -

    1. HTML is Hyper Text Markup Language. Remember -it is NOT programming! It's just putting 'marks' around the text so as to make it look beautiful as a web page.

    Here's how HTML looks (note, its just putting up tags around the text)

    HTML Code:
    <html>
    <body>
    The content of the body element is displayed in your browser.
    </body>
    </html>


    2. Applet on the other hand is a JAVA program that is 'embedded' in the HTML code to provide 'functionality' (note the quotes!) to the web page.

    Example of Applet:

    /*
    * @(#)ArcTest.java 1.5 98/06/29
    *
    * Copyright (c) 1997, 1998 Sun Microsystems, Inc. All Rights Reserved.
    *
    * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
    * modify and redistribute this software in source and binary code form,
    * provided that i) this copyright notice and license appear on all copies of
    * the software; and ii) Licensee does not utilize the software in a manner
    * which is disparaging to Sun.
    *
    * This software is provided "AS IS," without a warranty of any kind. ALL
    * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
    * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
    * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
    * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
    * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
    * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
    * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
    * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
    * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
    * POSSIBILITY OF SUCH DAMAGES.
    *
    * This software is not designed or intended for use in on-line control of
    * aircraft, air traffic, aircraft navigation or aircraft communications; or in
    * the design, construction, operation or maintenance of any nuclear
    * facility. Licensee represents and warrants that it will not use or
    * redistribute the Software for such purposes.
    */

    import java.awt.*;
    import java.awt.event.*;
    import java.applet.*;

    /**
    * An interactive test of the Graphics.drawArc and Graphics.fillArc
    * routines. Can be run either as a standalone application by
    * typing "java ArcTest" or as an applet in the AppletViewer.
    */
    public class ArcTest extends Applet {
    ArcControls controls; // The controls for marking and filling arcs
    ArcCanvas canvas; // The drawing area to display arcs

    public void init() {
    setLayout(new BorderLayout());
    canvas = new ArcCanvas();
    add("Center", canvas);
    add("South", controls = new ArcControls(canvas));
    }

    public void destroy() {
    remove(controls);
    remove(canvas);
    }

    public void start() {
    controls.setEnabled(true);
    }

    public void stop() {
    controls.setEnabled(false);
    }

    public void processEvent(AWTEvent e) {
    if (e.getID() == Event.WINDOW_DESTROY) {
    System.exit(0);
    }
    }

    public static void main(String args[]) {
    Frame f = new Frame("ArcTest");
    ArcTest arcTest = new ArcTest();

    arcTest.init();
    arcTest.start();

    f.add("Center", arcTest);
    f.setSize(300, 300);
    f.show();
    }

    public String getAppletInfo() {
    return "An interactive test of the Graphics.drawArc and \nGraphics.fillArc routines. Can be run \neither as a standalone application by typing 'java ArcTest' \nor as an applet in the AppletViewer.";
    }
    }

    class ArcCanvas extends Canvas {
    int startAngle = 0;
    int endAngle = 45;
    boolean filled = false;
    Font font;

    public void paint(Graphics g) {
    Rectangle r = getBounds();
    int hlines = r.height / 10;
    int vlines = r.width / 10;

    g.setColor(Color.pink);
    for (int i = 1; i <= hlines; i++) {
    g.drawLine(0, i * 10, r.width, i * 10);
    }
    for (int i = 1; i <= vlines; i++) {
    g.drawLine(i * 10, 0, i * 10, r.height);
    }

    g.setColor(Color.red);
    if (filled) {
    g.fillArc(0, 0, r.width - 1, r.height - 1, startAngle, endAngle);
    } else {
    g.drawArc(0, 0, r.width - 1, r.height - 1, startAngle, endAngle);
    }

    g.setColor(Color.black);
    g.setFont(font);
    g.drawLine(0, r.height / 2, r.width, r.height / 2);
    g.drawLine(r.width / 2, 0, r.width / 2, r.height);
    g.drawLine(0, 0, r.width, r.height);
    g.drawLine(r.width, 0, 0, r.height);
    int sx = 10;
    int sy = r.height - 28;
    g.drawString("S = " + startAngle, sx, sy);
    g.drawString("E = " + endAngle, sx, sy + 14);
    }

    public void redraw(boolean filled, int start, int end) {
    this.filled = filled;
    this.startAngle = start;
    this.endAngle = end;
    repaint();
    }
    }

    class ArcControls extends Panel
    implements ActionListener {
    TextField s;
    TextField e;
    ArcCanvas canvas;

    public ArcControls(ArcCanvas canvas) {
    Button b = null;

    this.canvas = canvas;
    add(s = new TextField("0", 4));
    add(e = new TextField("45", 4));
    b = new Button("Fill");
    b.addActionListener(this);
    add(b);
    b = new Button("Draw");
    b.addActionListener(this);
    add(b);
    }

    public void actionPerformed(ActionEvent ev) {
    String label = ev.getActionCommand();

    canvas.redraw(label.equals("Fill"),
    Integer.parseInt(s.getText().trim()),
    Integer.parseInt(e.getText().trim()));
    }
    }

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Share anywhere and get download.

50%