Исходный текст программы CopyTxtFile.java

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// ==========================================
// CopyTxtFile.java
//(C) Alexandr Frolov, 1998
// E-mail: frolov@glasnet.ru
// Web:    http://www.glasnet.ru/~frolov 
// ==========================================

import java.io.*;
import java.awt.*;
import java.awt.event.*;

public class CopyTxtFile
{
  public static void main(String args[])
  {
    Frame fr = new Frame("");
    FileDialog fdlg;
    
    FileInputStream is = null;
    
    fdlg = new FileDialog(fr, "Source file");
    fdlg.show();

    String szSourceFilename;
    szSourceFilename = fdlg.getDirectory() +
      fdlg.getFile();
    
    fdlg = new FileDialog(fr,
      "Save file as...", 
      FileDialog.SAVE);
    fdlg.show();
    
    String szDestFilename;
    szDestFilename = fdlg.getDirectory() +
      fdlg.getFile();
    
    DataInputStream dis  = null;    
    DataOutputStream dos = null;    
    
    try
    {
      dis = new DataInputStream(
        new FileInputStream(szSourceFilename));
      
      dos = new DataOutputStream(
        new FileOutputStream(szDestFilename));
    }
    catch (IOException ex)
    {
      System.out.println(ex.toString());
      System.exit(0);
    }
      
    while(true)
    {
      try
      {
	dos.writeChar(dis.readChar());
      }
      catch (EOFException ex)
      {
	break;
      }
      catch (IOException ex)
      {
        System.out.println(ex.toString());
	break;
      }
    }  
      
    try
    {
      dis.close();
      dos.close();  
    }
    catch (IOException ex)
    {
      System.out.println(ex.toString());
      System.exit(0);
    }
      
    System.exit(0);
  }
}

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