Internet applet

Question

Hello,
I have written a program for a course. It recieves a wave file [via a browser windows searching through the file system] and preforms some manipulations on it.
Now that I have finished, my lectrurer told me to turn it into a java internet applet - where instead of browser window, one could enter a url [or still choose browsing].
So these are my questions:
1) How may I turn the program into a java applet? I need it to preform the computation on the server's processor, if that is possible and not too difficult.
2) How may I change the program to support an url of a wave file? the code I have that deals with wave files is:
public class handle_input_file {
     /**Handle input file of type wav*/
          //Create a global buffer size
          private static final int EXTERNAL_BUFFER_SIZE = 1280000;
          protected static double duration, rate, LENGTH;
          protected static double[] tau;
          public static int[] sample_WAV_input(File soundFile, double segment_length) throws UnsupportedAudioFileException, IOException, LineUnavailableException{
               /**public static int[] sample_WAV_input(File soundFile, double segment_length) throws UnsupportedAudioFileException, IOException, LineUnavailableException
                * receives a file and segment_length, indicating length part in seconds should be analyzed by the SFT
                * The procedure opens the wave file for reading and returns an array of int(s) of what it read,
                * and also - sets into global variables the duration in seconds of the file, the sample_rate, and other
                * information needed later for analysis. The procedure also computes an array of tau values, that is
                * array of doubles, such that tau[i] acts as "tau" (of the Adi Akavia algorithm) for the ith segment analyzed. 
//               Load the Audio Input Stream from the file       
               AudioInputStream audioInputStream = null;
               audioInputStream = AudioSystem.getAudioInputStream(soundFile);
//               Get Audio Format information
               AudioFormat audioFormat = audioInputStream.getFormat();
//               Handle opening the line
               SourceDataLine     line = null;
               DataLine.Info     info = new DataLine.Info(SourceDataLine.class, audioFormat);
               line = (SourceDataLine) AudioSystem.getLine(info);
               line.open(audioFormat);
//               Write the sound to an array of bytes
               int nBytesRead = 0;
               byte[]     abData = new byte[EXTERNAL_BUFFER_SIZE];
               while (nBytesRead != -1) {
                    nBytesRead = audioInputStream.read(abData, 0, abData.length);
                    if (nBytesRead >= 0) {
                         line.write(abData, 0, nBytesRead);
               }Thank you so much.

Answer 1

zellazode wrote:
...He is not a lecturer of Java. He is a lecturer of Complexity, ..This matter is too complex for him to be commenting on.
..Information theory etc.. Are you certain that was not Disinformation theory?
..We made a program that preforms Fourier transfrom, but then he said he would like this program to run on from the interent.An HTML form with a <input type='file'> could upload the info to the server. The server might deliver an image (with a view of one 'slice' of the spectrum - the spectrum at any one moment) of an animated GIF showing the spectrum during the course of the sound. If you wanted to tie the sound into that playback, look to delivering back a (e.g.) MOV to the client.
For the static or animated image, a browser (with no applet) will do just fine. For the MOV, it will take some kind of player. A Java applet with JMF could display a MOV.
BTW - I suspect this part of the project is way out of the league of either you or your 'vague waving hands' professor.