problem in specifying file path

[Gaurav Aggarwall]

Hi
In my code, i am getting the error:
invalid directory,file or path name.
here is my code.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.*;
import sun.audio.*;
import java.applet.*;
import java.math.*;

class mainframe extends JFrame implements ActionListener,Runnable
 {
  JLabel Lfilename,Lmessage,Ldesign,Ltitle;
  JButton Bplay,Bopen,Bsave,Bstop,Bencrypt,Bdecrypt,Bsend,Bclear;
  JTextArea Amessage;
  JTextField Tfilename;
  Icon Iplay,Iopen,Istop,Isave;
  String Ekey,Dkey,address,name;
  JFileChooser filechooser;
  File Ofilename,Sfilename,tempfilename;
  InetAddress ipaddress;
  int Copened,Cencrypt,Cdecrypt,Cplay,Cstop,Csave;
  InputStream ins;
  AudioStream as;
  Thread t;
  byte B[];

  public mainframe()throws Exception
   {

    // frame

    super("Audio Steganography");
    Container con=getContentPane();
    con.setLayout(null);

    // Basic

    Copened=0;
    Cencrypt=0;
    Cdecrypt=0;
    Cplay=0;
    Csave=0;
    Cstop=0;

    t=new Thread(this);
    t.start();

    // Icons

    Iplay=new ImageIcon("play.gif");
    Isave=new ImageIcon("save.gif");
    Iopen=new ImageIcon("open.gif");
    Istop=new ImageIcon("stop1.gif");

    // file chooser

    filechooser=new JFileChooser();
    filechooser.setFileSelectionMode(JFileChooser.FILES_ONLY);

    // comp

    Ltitle=new JLabel("Audio Steganography");
    Ldesign=new JLabel("Designed By :Gaurav");
    Lfilename=new JLabel("File Name ");
    Lmessage=new JLabel("Message  ");
    Bplay=new JButton("",Iplay);
    Bopen=new JButton("",Iopen);
    Bsave=new JButton("",Isave);
    Bstop=new JButton("",Istop);
    Bclear=new JButton("Clear");
    Bencrypt=new JButton("Encoding");
    Bdecrypt=new JButton("Decoding");
    Bsend=new JButton("Send");
    Amessage=new JTextArea();
    Tfilename=new JTextField();

    // tool tips

    Tfilename.setToolTipText("Opened filename");
    Bplay.setToolTipText("play");
    Bopen.setToolTipText("open");
    Bsave.setToolTipText("save");
    Bstop.setToolTipText("stop");

    Tfilename.setEditable(false);

    // Bounds

    Ltitle.setBounds(300,30,250,25);
    Lfilename.setBounds(100,100,100,25);
    Tfilename.setBounds(100,125,230,25);
    Lmessage.setBounds(450,100,100,25);
    Amessage.setBounds(450,125,300,220);
    Bclear.setBounds(450,370,80,22);
    Bplay.setBounds(100,200,50,25);
    Bstop.setBounds(160,200,50,25);
    Bopen.setBounds(220,200,50,25);
    Bsave.setBounds(280,200,50,25);
    Bencrypt.setBounds(100,250,110,25);
    Bdecrypt.setBounds(220,250,110,25);
    Bsend.setBounds(160,300,110,25);
    Ldesign.setBounds(350,420,400,50);


    // add

    con.add(Ltitle);
    con.add(Ldesign);
    con.add(Lfilename);
    con.add(Tfilename);
    con.add(Lmessage);
    con.add(Amessage);
    con.add(Bclear);
    con.add(Bplay);
    con.add(Bopen);
    con.add(Bsave);
    con.add(Bstop);
    con.add(Bencrypt);
    con.add(Bdecrypt);
    con.add(Bsend);

    // actionListener

    Bclear.addActionListener(this);
    Bplay.addActionListener(this);
    Bopen.addActionListener(this);
    Bsave.addActionListener(this);
    Bstop.addActionListener(this);
    Bencrypt.addActionListener(this);
    Bdecrypt.addActionListener(this);
    Bsend.addActionListener(this);

   } // constr of mainframe

  public void run()
   {
    try
     {
      recv r=new recv();
     }
    catch(Exception e)
     {
      System.out.println(e);
     }
   }

  public void Audioencrypt(String message,File file,int key) throws Exception
   {
    byte b[]=new byte[1];
    BigInteger Abi,Mbi;
    int k,k1;
    InputStream ins=new FileInputStream(file);
    OutputStream outs=new FileOutputStream(new File("d:\temp.wav"));
    for(int c=0;c<key;c++)
     {
      int ch=ins.read();
      outs.write(ch);
     }
    int len=message.length();
    byte mess[]=new byte[1];
    char chmess[]=new char[len+1];
    k=k1=0;
    for(int i=0;i<=len;i++)
     {
      message.getChars(0,len,chmess,0);
      if(i==0)
       {
        BigDecimal bd=new BigDecimal(len);
        BigInteger Blen=bd.toBigInteger();
        String Slen=Blen.toString(2);
        char Clen[]=new char[Blen.bitLength()];
        Slen.getChars(0,Blen.bitLength(),Clen,0);
        for(int j=0;j<=7;j++)
         {
          if(j==0)
           {
            for(k=0;k<8-Blen.bitLength();k++)
             {
              int n=ins.read(B);
              Abi=new BigInteger(B);
              String Aby=Abi.toString(2);
              int Alen=Abi.bitLength();
              if(b[0]<0)
                Alen++;
              char Ach[]=new char[Alen+1];
              Aby.getChars(0,Alen,Ach,0);

          if(b[0]==0)
           {
           }
          else
           {
              if(Ach[Alen-1]=='1')
               {
                if(Alen==Abi.bitLength())
         {
                  BigInteger bi=new BigInteger("11111110",2);
                  BigInteger big=Abi.and(bi);
          b=big.toByteArray();
         }
         else
         {
                        BigInteger bi=new BigInteger("-1",2);
                      BigInteger big=Abi.subtract(bi);
          b=big.toByteArray();
         }
               }
        outs.write(B);
             }
           }  //for loop k
         j=j+k-1;
         } // if of j
            else
             {
              int n=ins.read(B);
              Abi=new BigInteger(B);
              String Aby=Abi.toString(2);
              int Alen=Abi.bitLength();
                  if(b[0]<0)
                  Alen++;
              char Ach[]=new char[Alen+1];
              Aby.getChars(0,Alen,Ach,0);
             if(b[0]==0)
              {
                   Alen=1;
              }
                if(Clen[j-k]=='0' && Ach[Alen-1]=='1')
                 {
                       if(Alen==Abi.bitLength())
                        {
                      BigInteger bi=new BigInteger("11111110",2);
                     BigInteger big=Abi.add(bi);
             b=big.toByteArray();
                        }
                       else
                        {
                        BigInteger bi=new BigInteger("-1",2);
                      BigInteger big=Abi.subtract(bi);
             b=big.toByteArray();
                        }
                      }
                else if(Clen[j-k]=='1' && Ach[Alen-1]=='0')
                 {
                      if(Alen==Abi.bitLength())
             {
                    BigInteger bi=new BigInteger("1",2);
            BigInteger big=Abi.add(bi);
            b=big.toByteArray();
             }
                      else
             {
                    BigInteger bi=new BigInteger("-1",2);
            BigInteger big=Abi.add(bi);
            b=big.toByteArray();
             }

                 }
                  outs.write(B);
                 } // end else

            } // for loop j

        } // end of if

      else
       {
        String slen=String.valueOf(chmess[i-1]);
        byte blen[]=slen.getBytes();
        BigInteger Blen=new BigInteger(blen);
        String Slen=Blen.toString(2);
        char Clen[]=new char[Blen.bitLength()];
        Slen.getChars(0,Blen.bitLength(),Clen,0);
        for(int j=0;j<=7;j++)
         {
          if(j==0)
           {
            for(k1=0;k1<8-Blen.bitLength();k1++)
             {
              int n=ins.read(B);
              Abi=new BigInteger(B);
          String Aby=Abi.toString(2);
              int Alen=Abi.bitLength();
                  if(b[0]<0)
                  Alen++;
              char Ach[]=new char[Alen+1];
              Aby.getChars(0,Alen,Ach,0);
         if(b[0]==0)
               {

               }
          else
           {
                  if(Ach[Alen-1]=='1')
                   {
                        if(Alen==Abi.bitLength())
                         {
                      BigInteger bi=new BigInteger("11111110",2);
                      BigInteger big=Abi.and(bi);
              b=big.toByteArray();
                         }
                        else
                         {
                        BigInteger bi=new BigInteger("-1",2);
                      BigInteger big=Abi.subtract(bi);
              b=big.toByteArray();
                         }
                   }
           }
        outs.write(B);

              }  //for loop k

        j=j+k1-1;

             } // if of j

        else
         {
          int n=ins.read(B);
           Abi=new BigInteger(B);
              String Aby=Abi.toString(2);
              int Alen=Abi.bitLength();
                  if(b[0]<0)
                  Alen++;
              char Ach[]=new char[Alen+1];
              Aby.getChars(0,Alen,Ach,0);
              if(b[0]==0)
               {
            Alen=1;
               }

                if(Clen[j-k1]=='0' && Ach[Alen-1]=='1')
                 {
            if(Alen==Abi.bitLength())
              {
                        BigInteger bi=new BigInteger("11111110",2);
                      BigInteger big=Abi.and(bi);
              b=big.toByteArray();
                         }
                        else
              {
                        BigInteger bi=new BigInteger("-1",2);
                      BigInteger big=Abi.subtract(bi);
              b=big.toByteArray();
                         }
                 }
                else if(Clen[j-k1]=='1' && Ach[Alen-1]=='0')
                 {
            if(Alen==Abi.bitLength())
             {
                     BigInteger bi=new BigInteger("1",2);
                      BigInteger big=Abi.add(bi);
              b=big.toByteArray();
              }
            else
             {
                     BigInteger bi=new BigInteger("-1",2);
                      BigInteger big=Abi.add(bi);
              b=big.toByteArray();
              }
                 }
        outs.write(B);
         } // end else

       } // for loop j
     } // end of else

   } // for loop i

  while(true)
   {
    int i=ins.read();
    if(i==-1) break;
    outs.write(i);
   }
    ins.close();
    outs.close();
   }

public void Audiodecrypt(File filename,int key)throws Exception
 {
  InputStream ins=new FileInputStream(filename);
  byte b[]=new byte[1];
  BigInteger bb1;
  char mess[]=new char[8];
  int c=0;
  for(int i=0;i<key;i++)
  {
   int n=ins.read();
  }
  for(int i=0;i<8;i++)
   {
    ins.read(B);
    bb1=new BigInteger(B);
    String str=bb1.toString(2);
    int len=bb1.bitLength();
    if(b[0]<0)
     len++;
    char ch[]=new char[len+1];
    str.getChars(0,len,ch,0);
    if(b[0]==0)
     mess[i]='0';
    else
     mess[i]=ch[len-1];
   }
  String dd=new String(mess);
  BigInteger bb=new BigInteger(dd,2);
  String s=bb.toString(2);
 int l=bb.intValue();

char me[]=new char[l];
int count=0;

for(int m=0;m<l;m++)
 {
for(int i=0;i<8;i++)
   {
    ins.read(B);
    bb1=new BigInteger(B);
    String str=bb1.toString(2);
    int len=bb1.bitLength();
    if(b[0]<0)
     len++;
    char ch[]=new char[len+1];
    str.getChars(0,len,ch,0);
    if(b[0]==0)
     mess[i]='0';
    else
     mess[i]=ch[len-1];
   }
  String dd1=new String(mess);
  BigInteger bb2=new BigInteger(dd1,2);
  String s1=bb2.toString(2);
 int l1=bb2.intValue();
 me[count]=(char)l1;
 count++;
 }

String message=new String(me);
Amessage.setText(message);
ins.close();

 }

  public void actionPerformed(ActionEvent ae)
   {

   try
    {

 // Action for encryption button

    if(ae.getSource()==Bencrypt)
     {
      if(Copened==1)
       {
        Ekey=JOptionPane.showInputDialog("Enter The Key For Encryption");
//String type
        if(Ekey.trim().equals(""))
         JOptionPane.showMessageDialog(this,"Enter the Key","Error",JOptionPane.ERROR_MESSAGE);
        else
         {
          // encrypt the message
          int key=Integer.parseInt(Ekey);
          Audioencrypt(Amessage.getText(),Ofilename,key);
          Cencrypt=1;
         }
       }
      else
       {
        JOptionPane.showMessageDialog(this,"File Not Opened","Error",JOptionPane.ERROR_MESSAGE);
       }
     } // end of Bencrypt

// Action for Clear button

    else if(ae.getSource()==Bclear)
     {
      Amessage.setText("");
     } // end of clear button

// Action for Decrypt button

    else if(ae.getSource()==Bdecrypt)
     {
      if(Copened==1)
       {
        Dkey=JOptionPane.showInputDialog("Enter The Key For Decryption");
//String type
        if(Dkey.trim().equals(""))
         JOptionPane.showMessageDialog(this,"Enter the Key","Error",JOptionPane.ERROR_MESSAGE);
        else
         {
         // decrypt message
          int key=Integer.parseInt(Dkey);
         Audiodecrypt(Ofilename,key);
         Cdecrypt=1;
         }
       }
      else
       JOptionPane.showMessageDialog(this,"File Not Opened","Error",JOptionPane.ERROR_MESSAGE);
     } // end of Decrypt button

// Action for Play button

    else if(ae.getSource()==Bplay)
     {
      if(Copened==1)
       {

         ins=new FileInputStream(Ofilename);
         as=new AudioStream(ins);
         AudioPlayer.player.start(as);
         Cplay=1;
         Cstop=0;

       } // start playing

      else
       JOptionPane.showMessageDialog(this,"File Not Opened","Error",JOptionPane.ERROR_MESSAGE);

     } // end of play button



// Action for Stop button

    else if(ae.getSource()==Bstop)
     {

      if(Cplay==1)
       {

        Cplay=0;
        Cstop=1;
        AudioPlayer.player.stop(as);

       } // stop plaing

      else

       JOptionPane.showMessageDialog(this,"No Audio Is playing","Error",JOptionPane.ERROR_MESSAGE);

     } // end of stop button



// Action for open Button

    else if(ae.getSource()==Bopen)
     {
      int r=filechooser.showOpenDialog(this);
      tempfilename=filechooser.getSelectedFile(); //File type
      if(r==JFileChooser.CANCEL_OPTION)
       JOptionPane.showMessageDialog(this,"File Not Selected","Error",JOptionPane.ERROR_MESSAGE);
      else
       {
        name=tempfilename.getName();

        if(!(name.endsWith(".wav")))

          JOptionPane.showMessageDialog(this,"Select Only Wav","Error",JOptionPane.ERROR_MESSAGE);

        else
          {
            Copened=1;
            Ofilename=tempfilename;
            Tfilename.setEditable(true);
            Tfilename.setText(name);
            Tfilename.setEditable(false);
           }

         }
     }   // end of Open button

// Action for Save Button

    else if(ae.getSource()==Bsave)
     {
      if(Copened==1 && Cencrypt==1 || Cdecrypt==1)
       {
        int r=filechooser.showSaveDialog(this);
        Sfilename=filechooser.getSelectedFile(); //File type
        InputStream in=new FileInputStream("d:\temp.wav");
        OutputStream out=new FileOutputStream(Sfilename);
        Ofilename=Sfilename;
    name=Sfilename.getName();
        Tfilename.setEditable(true);
        Tfilename.setText(name);
        Tfilename.setEditable(false);
        while(true)
         {
          int i=in.read();
          if(i==-1) break;
          out.write(i);
         }
       in.close();
       out.close();
       }
      else
       {
        String s;
        if(Copened==0)
         s="File not Opened";
        else if(Cencrypt==0)
         s="Not Encrypted";
        else
         s="Not Decrypted";

JOptionPane.showMessageDialog(this,s,"Error",JOptionPane.ERROR_MESSAGE);
       }
     } // end of save button

// Action for send button

    else if(ae.getSource()==Bsend)
     {
      if(Copened==1 && Cencrypt==1)
       {
        address=JOptionPane.showInputDialog("Enter The IPaddress");
        ipaddress=InetAddress.getByName(address);
        Socket socket=new Socket(ipaddress,6000);
        OutputStream out=socket.getOutputStream();
        InputStream in=new FileInputStream(Ofilename);
        while(true)
         {
          int i=in.read();
          if(i==-1) break;
          out.write(i);
         }
         in.close();
         out.close();
       }
      else
       {
        String s;
        if(Copened==1)
          s="Encryption not done";
        else
          s="Open the File first";

JOptionPane.showMessageDialog(this,s,"Error",JOptionPane.ERROR_MESSAGE);
       }
     }

    } // end try
    catch(Exception e)
     {
     //
JOptionPane.showMessageDialog(this,e,"Error",JOptionPane.ERROR_MESSAGE);
     }

   } // end of actionperformed

 }//end of class


class recv extends JFrame implements Runnable
 {
   JFileChooser fc;
   ServerSocket ss;
   Socket s;
   InputStream ins;
   OutputStream out;
   byte b[];
   int len;

  public recv() throws Exception
    {

      b=new byte[100];
      fc=new JFileChooser();
      fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
      ss=new ServerSocket(6000);
      torun();
    }
  public void torun() throws Exception
   {
      while(true)
       {
        s=ss.accept();
        ins=s.getInputStream();
        String str="Your have Receive An AudioFile. Save them";

JOptionPane.showMessageDialog(this,str,"Information",JOptionPane.INFORMATION_MESSAGE);
        int r=fc.showSaveDialog(this);
        File file=fc.getSelectedFile();
        out=new FileOutputStream(file);
        Thread t=new Thread(this);
        t.start();
       }
    }
   public void run()
    {
      try
        {
         while(true)
          {
           int n=ins.read();
        if(n==-1) break;
           out.write(n);
          }
       //  s.close();
         ins.close();
         out.close();
        }
      catch(Exception e)
        {
           System.out.println(e);
        }
    } // end of run
 } //end of class




public class techmeet1
 {
  public static void main(String arg[])throws Exception
   {
    mainframe frame=new mainframe();
    frame.setSize(800,600);
    frame.setVisible(true);


    frame.addWindowListener( new WindowAdapter()
     {
      public void windowClosing(WindowEvent we)
       {
        System.exit(0);
       }
     });

   } // end of main

 } // end of class

[Maneesh Godbole]

I doubt anybody is going to look at 700+ lines of code.
What is the exact error? Can you post the stack trace?

[Michael Dunn]

you must be joking

700+ lines, and a copy/paste/run triggers my firewall blocking whatever it's trying to do.

if you really have a problem, strip all the unrelated code and post a compilable demo program < 100 lines

[Rob Camick]

You've got to be joking. 99.9% of the code posted has nothing to do with your stated problem. We are not going to read through all the code to find the problem.

If you don't know how to specify "file paths" then create a simple demo. Once you understand the basics, you then use the knowledge learned and apply it to your real program. This demo program is called a SSCCE . Check out the link for more info on create a SSCCE.

Wow, two people beat me to the punch. At least we are all consistent.

[Gaurav Aggarwall]

Sorry for that..
i think the problem is in line 144
i get this error:
java.io.FileNotFoungException: d:emp.wav (The filename, directory name or volume label syntax is incorrect)

i dont know from where "emp.wav is coming when i have not at all mentioned it in my code."
here is the reduced code..

[Rob Camick]

Going from 737 to 615 lines does NOT mean you created a SSCCE. Read the link!

I think you will be waiting a long time for help.

[Gaurav Aggarwall]

Rob Camick wrote:Going from 737 to 615 lines does NOT mean you created a SSCCE. Read the link!

I think you will be waiting a long time for help.

I understood what are you trying to say.
now i am working on SSCCE.
Anyways, Thanks for the help.

[Maneesh Godbole]

I have edited out the code in your second post as it was
1) Making the page too long to scroll
2) You are posting the real SSCCE anyway

Hint to your problem. Are you aware of escape characters?

[Rob Spoor]

Gaurav Aggarwall wrote:java.io.FileNotFoungException: d:emp.wav (The filename, directory name or volume label syntax is incorrect)

What does character \t mean? It certainly isn't a \ followed by a t. Because don't forget, \ means something special in Java strings.

[Gaurav Aggarwall]

Rob Prime wrote:

Gaurav Aggarwall wrote:java.io.FileNotFoungException: d:emp.wav (The filename, directory name or volume label syntax is incorrect)

What does character \t mean? It certainly isn't a \ followed by a t. Because don't forget, \ means something special in Java strings.

Thanks buddy.
Problem solved.