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JSAMPLES.Z
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NervousText.java
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1998-05-08
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/*
* @(#)NervousText.java 1.5 96/12/06
*
* Copyright (c) 1994-1996 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.
*/
/* Daniel Wyszynski
Center for Applied Large-Scale Computing (CALC)
04-12-95
Test of text animation.
kwalrath: Changed string; added thread suspension. 5-9-95
*/
import java.awt.Graphics;
import java.awt.Font;
public class NervousText extends java.applet.Applet implements Runnable {
char separated[];
String s = null;
Thread killme = null;
int i;
int x_coord = 0, y_coord = 0;
String num;
int speed=35;
int counter =0;
boolean threadSuspended = false; //added by kwalrath
public void init() {
s = getParameter("text");
if (s == null) {
s = "HotJava";
}
separated = new char [s.length()];
s.getChars(0,s.length(),separated,0);
resize((s.length()+1)*15, 50);
setFont(new Font("TimesRoman",Font.BOLD,36));
}
public void start() {
if(killme == null)
{
killme = new Thread(this);
killme.start();
}
}
public void stop() {
killme = null;
}
public void run() {
while (killme != null) {
try {Thread.sleep(100);} catch (InterruptedException e){}
repaint();
}
killme = null;
}
public void paint(Graphics g) {
for(i=0;i<s.length();i++)
{
x_coord = (int) (Math.random()*10+15*i);
y_coord = (int) (Math.random()*10+36);
g.drawChars(separated, i,1,x_coord,y_coord);
}
}
/* Added by kwalrath. */
public boolean mouseDown(java.awt.Event evt, int x, int y) {
if (threadSuspended) {
killme.resume();
}
else {
killme.suspend();
}
threadSuspended = !threadSuspended;
return true;
}
}