//******************
// LineFilter.java *
//******************
import java.io.*;
 
public class LineFilter
{
  private BufferedReader m_file;
  private String m_line;
 
  public LineFilter(String fileName)
  {
    setFile(fileName);
  }
 
  public LineFilter()
  {
    m_line = "";
  }
 
  public void setFile(String fileName)
  {
    try
    {
      m_file = new BufferedReader(new FileReader(fileName));
    }
    catch(IOException e)
    {
      throw new IllegalArgumentException (e.getMessage());
    }
  }
 
  public String readLine()
  {
    if (m_file == null)
      throw new IllegalStateException ("No such file!");
 
    try
    {
      do
      {
        int comments;
        m_line = m_file.readLine();
        comments = m_line.indexOf("#");
 
        if (comments >= 0)
        {
          m_line = m_line.substring(0, comments);
        }
      }while (m_line.compareTo("") == 0);
    }
 
    catch(IOException e)
    {
      return null;
    }
 
    return m_line;
  }
 
  public static void main(String[] args)
  {
    LineFilter filter = new LineFilter();
 
    for (int i=0; i<args.length; ++i)
    {
      try
      {
        filter.setFile(args[i]);
      }
      catch (RuntimeException e)
      {
        System.out.println("Error: " + e.getMessage());
        continue;
      }
      String line = filter.readLine();
      while (line != null)
      {
        System.out.println(line);
        line = filter.readLine();
      }
    }
  }
}