code: public boolean accept(File f) {
  
          return f.getName().startsWith(m_baseName)
              && (f.getName().length() > m_baseName.length())
              && (f.getName().indexOf('.', m_baseName.length()) < 0);
      }
docs: Accepts the given file if its name starts with the name of of the base file (without extension)
  and ends with the extension.<p>
  
  @see java.io.FileFilter#accept(java.io.File)