public DataTableModel(String filename,AbstractFileLoader... loaders){
  this();
  if ((filename != null) && (!filename.equals(""))) {
    loadFile(filename,loaders);
  }
}

public DataTableModel ( String filename , AbstractFileLoader ... loaders ) { this ( ) ; if ( ( filename != null ) && ( ! filename . equals ( "" ) ) ) { loadFile ( filename , loaders ) ; } }
initializes the object and loads the given file
