code: public String getKeyValue(String strSection, String key) throws IOException {
  	Object o = getSection(strSection).get(key.toLowerCase());
  	if (o == null) throw new IOException("key " + key + " doesn't exist in section " + strSection);
  	return (String) o;
  
      }
docs: Gets the KeyValue attribute of the IniFile object
  
  @param strSection section to get
  @param key key to get
  @return matching alue
  @throws IOException