code: public static Map<String, Stock> get(String[] symbols, boolean includeHistorical) throws IOException {
          return YahooFinance.getQuotes(Utils.join(symbols, ","), includeHistorical);
      }
docs: Same as the <code>get(String[])</code> method, but with the option to include
  historical stock quote data. Including historical data will cause the {@link Stock}
  objects their member field {@link yahoofinance.histquotes.HistoricalQuote} to be filled in
  with the default past year term at monthly intervals.
  <p>
  The latest quotes will be retrieved in a single request to Yahoo Finance.
  For the historical quotes (if includeHistorical),
  a separate request will be sent for each requested stock.
  The returned Map only includes the Stocks that could
  successfully be retrieved from Yahoo Finance.
  
  @param symbols               the symbols of the stocks for which you want to retrieve information
  @param includeHistorical     indicates if the historical quotes should be included
  @return                      a Map that links the symbols to their respective Stock objects
  @throws java.io.IOException when there's a connection problem