code: public static String addGetParameter(String path, String parameterKey, String parameter) {
  		StringBuilder sb = new StringBuilder(path);
  		if (path.indexOf("?") > 0) {
  			sb.append("&");
  		} else {
  			sb.append("?");
  		}
  		sb.append(parameterKey).append("=").append(parameter);
  		return sb.toString();
  	}
docs: Adds a key and value to the request path & or ? will be used as needed
  
  path + ? or & + parameterKey=parameter
  
  @param path
  the url to add the parameterKey and parameter too
  @param parameterKey
  the key in the get request (parameterKey=parameter)
  @param parameter
  the parameter to add to the end of the url
  @return a String with the url parameter added: path + ? or & +
  parameterKey=parameter