[java programming] i can not compile it, please help me.

[zhang chun]

public class project4aczhang34
{

public static void main (String[] args)
  {
    String fname = FileChooser.pickAFile();
    Sound s = new Sound (fname);

    System.out.println ("Number of samples in the sound: " +
s.getLength());
    System.out.println ("Number of samples per second: " +
s.getSamplingRate());

    double lengthInSeconds = s.getLength() / s.getSamplingRate();

    System.out.println ("The length in seconds of the sound: " +
lengthInSeconds);

    String input;
    input = SimpleInput.getString ("Please type the message you want
to encode into the your sound file:");
    System.out.println(input);

    int digit1, digit2, digit3;
    int temp;
    //int  array[ ] = new int[100];
    int array[ ]= new int[input.length()*3];


    for (int i=0; i<input.length(); i++)
    {
      char ch = input.charAt(i);
      int asciiNum = (int) ch;
      System.out.println ("For Character:" + ch + "int ascii value
is;" + asciiNum);

      digit1=asciiNum % 10;
      temp = asciiNum /10;
      digit2 = temp %10;
      temp = temp /10;
      digit3 = temp%10;
      System.out.println ("The digits are:" + digit1 + "," + digit2 +
"," +digit3);

      array [i*3+0]=digit1;
      array [i*3+1]=digit2;
      array [i*3+2]=digit3;
    Sound NewSound = codesound(s,array);
    NewSound.explore();
    }


 public static Sound codesound (Sound s, int [ ])
 {
    SoundSample sampArr [ ]= s.getSamples();
    SoundSample samp;

    int numberOfSamples = s.getLength();

    Sound s1= new Sound (numberOfSamples);
    SoundSample sampArr1 [ ] = s1.getSamples();
    SoundSample samp1;

    int index;
    int sampVal, sampVal1;

    for (index =0; index <sampArr1.length; index ++)
    {
      samp = sampArr [index];
      samp1 = sampArr1 [index];

      sampVal = samp.getValue();

      int digit4;
      digit4 = sampVal % 10;
      int modAmpValue;
      modAmpValue = sampVal - digit4;

      if (sampVal >=0)
        sampVal1 = modAmpValue + array[index];
      else
        sampVal1 = modAmpValue - array[index];

      if (sampVal >32767)
        sampVal1 =sampVal1-10;
      else if (sampVal <-32767)
        sampVal1 =sampVal1+10;
      else
        sampVal1= sampVal1;
      samp1.setValue (sampVal1);
      return s1;
    }

 }
}
}

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