Originally posted by Polar
expected in a subdirectory 'images'; a subdirectory of subdirectory 'components'
that is. btw, the entire thing has nothing to do with applets so you can remove
that .htm file.
kind regards,
Jos
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If you had actually read the source code you had seen that the images are
expected in a subdirectory 'images'; a subdirectory of subdirectory 'components'
that is. btw, the entire thing has nothing to do with applets so you can remove
that .htm file.
kind regards,
Jos -
how should i type in the command prompt if it is under the testing directory?Originally posted by r035198xComment
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so jos, you mean inside the component folder, there is two .class file and image folder is it?Originally posted by JosAHComment
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No matter how you type it on the command, the path in the source code is the one that's used to locate the images.Originally posted by PolarComment
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Originally posted by Polar
Thank you very much!!!!! especially to r035198x and JosAH.. thanks for bearing my lots and lots of question!!!! thanks alotComment
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Don't forget to read that Java tutorial from the start.Originally posted by Polar
Edit: And oh, I'll have to rename this thread for Jos and all the other purits ..Comment
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Originally posted by Polar
one more question... SliderDemo2 is not an applet? how come one of the member at the other forum told mi it is an applet and he can view it at his browser? Thanks alot friends!!!!!!!! !Comment
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They could have changed it into an applet first (It's possible) or they could have been lying to you.Originally posted by PolarComment
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That's what I have been telling you all the time. If you read the source codeOriginally posted by Polar
(I googled for it and found it) you'd see that your SliderDemo2 class doesn't
extende from the (J)Applet class so it can never be a (J)Applet. Maybe that
'member from the other forum' changed the demo him/herself, who knows?
kind regards,
Jos
ps. you should read more carefully; really; take it from me; you miss a lot of
precious information if you don't.Comment
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Originally posted by r035198x
I have created a html file myself, other than that i have added in the "import java.applet.App let;" and "public class HelloWorldApple t extends Applet {" into the SliderDemo2.jav a.. Do you know what else should i add ,in other to get SliderDemo2 to work as an applet? thanks friendComment
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Read the *JApplet* tutorial first. Don't try to make applets unless you've read a tutorial about them. Forget your slider demo for now and concentrate on reading about applets. After that you can come back to your demo and see if you can play around with it.Originally posted by PolarComment
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Originally posted by r035198x
ok thanks.. i will keep that in mind.. actually i have been rushing from application to applet because my school doesnt give us so much time to do so much read up, they want us to read up a little and expect us to do magic..Comment
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Originally posted by Polar
This is my SliderDemo Applet code:
// <applet code="SliderDem o2Applet" width="300" height="300"></applet>
import java.awt.*;
import java.awt.event. *;
import javax.swing.*;
import javax.swing.eve nt.*;
import java.util.Hasht able;
public class SliderDemo2Appl et extends JApplet
implements ActionListener,
ChangeListener {
//Set up animation parameters.
static final int FPS_MIN = 0;
static final int FPS_MAX = 30;
static final int FPS_INIT = 15; //initial frames per second
int frameNumber = 0;
int NUM_FRAMES = 14;
ImageIcon[] images = new ImageIcon[NUM_FRAMES];
int delay;
Timer timer;
boolean frozen = false;
//This label uses ImageIcon to show the doggy pictures.
JLabel picture;
public void init() {
delay = 1000 / FPS_INIT;
//Create the slider.
JSlider framesPerSecond = new JSlider(JSlider .VERTICAL,
FPS_MIN, FPS_MAX, FPS_INIT);
framesPerSecond .addChangeListe ner(this);
framesPerSecond .setMajorTickSp acing(10);
framesPerSecond .setPaintTicks( true);
//Create the label table.
Hashtable<Integ er, JLabel> labelTable =
new Hashtable<Integ er, JLabel>();
//PENDING: could use images, but we don't have any good ones.
labelTable.put( new Integer( 0 ),
new JLabel("Stop") );
//new JLabel(createIm ageIcon("images/stop.gif")) );
labelTable.put( new Integer( FPS_MAX/10 ),
new JLabel("Slow") );
//new JLabel(createIm ageIcon("images/slow.gif")) );
labelTable.put( new Integer( FPS_MAX ),
new JLabel("Fast") );
//new JLabel(createIm ageIcon("images/fast.gif")) );
framesPerSecond .setLabelTable( labelTable);
framesPerSecond .setPaintLabels (true);
framesPerSecond .setBorder(
BorderFactory.c reateEmptyBorde r(0,0,0,10));
//Create the label that displays the animation.
picture = new JLabel();
picture.setHori zontalAlignment (JLabel.CENTER) ;
picture.setAlig nmentX(Componen t.CENTER_ALIGNM ENT);
picture.setBord er(BorderFactor y.createCompoun dBorder(
BorderFactory.c reateLoweredBev elBorder(),
BorderFactory.c reateEmptyBorde r(10,10,10,10)) );
updatePicture(0 ); //display first frame
//Put everything together.
Container cp = getContentPane( );
cp.setLayout(ne w BorderLayout()) ;
cp.add(framesPe rSecond, BorderLayout.LI NE_START);
cp.add(picture, BorderLayout.CE NTER);
((JComponent)cp ).setBorder(Bor derFactory.crea teEmptyBorder(1 0,10,10,10));
//Set up a timer that calls this object's action handler.
timer = new Timer(delay, this);
timer.setInitia lDelay(delay * 7); //We pause animation twice per cycle
//by restarting the timer
timer.setCoales ce(true);
}
public void start() {
startAnimation( );
}
public void stop() {
stopAnimation() ;
}
public void stateChanged(Ch angeEvent e) {
JSlider source = (JSlider)e.getS ource();
if (!source.getVal ueIsAdjusting() ) {
int fps = (int)source.get Value();
if (fps == 0) {
if (!frozen) stopAnimation() ;
} else {
delay = 1000 / fps;
timer.setDelay( delay);
timer.setInitia lDelay(delay * 10);
if (frozen) startAnimation( );
}
}
}
public void startAnimation( ) {
//Start (or restart) animating!
timer.start();
frozen = false;
}
public void stopAnimation() {
//Stop the animating thread.
timer.stop();
frozen = true;
}
//Called when the Timer fires.
public void actionPerformed (ActionEvent e) {
//Advance the animation frame.
if (frameNumber == (NUM_FRAMES - 1)) {
frameNumber = 0;
} else {
frameNumber++;
}
updatePicture(f rameNumber); //display the next picture
if ( frameNumber==(N UM_FRAMES - 1)
|| frameNumber==(N UM_FRAMES/2 - 1) ) {
timer.restart() ;
}
}
/** Update the label to display the image for the current frame. */
protected void updatePicture(i nt frameNum) {
//Get the image if we haven't already.
if (images[frameNumber] == null) {
images[frameNumber] = createImageIcon ("images/doggy/T"
+ frameNumber
+ ".gif");
}
//Set the image.
if (images[frameNumber] != null) {
picture.setIcon (images[frameNumber]);
} else { //image not found
picture.setText ("image #" + frameNumber + " not found");
}
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon (String path) {
java.net.URL imgURL = SliderDemo2Appl et.class.getRes ource(path);
if (imgURL != null) {
return new ImageIcon(imgUR L);
} else {
System.err.prin tln("Couldn't find file: " + path);
return null;
}
}
private static void createAndShowGU I() {
//Create and set up the window.
JFrame frame = new JFrame("SliderD emo2Applet");
frame.setDefaul tCloseOperation (JFrame.EXIT_ON _CLOSE);
//Create and set up the content pane.
SliderDemo2Appl et applet = new SliderDemo2Appl et();
applet.init();
// JApplet is a top-level container and is opaque
frame.setConten tPane(applet);
//Display the window.
frame.pack();
frame.setVisibl e(true);
applet.startAni mation();
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.Swi ngUtilities.inv okeLater(new Runnable() {
public void run() {
createAndShowGU I();
}
});
}
}
it showed the same error message regarding my class not found.. i had typed this down" java -classpath . components.Slid erDemo2Applet" but still not working? what should i do?Comment
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1.) You forgot the code tags.Originally posted by Polar
2.) You haven't read that applet tutorial, have you?Comment
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Originally posted by r035198x
not code tag..i didnt copy the whole folder of images.. i just went in to copy the doggys images..ThanksComment
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