466  * re-cast the simple sum-of-weights example using the more general form as

   466  * re-cast the simple sum-of-weights example using the more general form as

   467  * follows:

   467  * follows:

   468  * <pre>{@code

   468  * <pre>{@code

   469  *     int sumOfWeights = widgets.stream()

   469  *     int sumOfWeights = widgets.stream()

   470  *                               .reduce(0,

   470  *                               .reduce(0,

   472  *                                       Integer::sum);

   472  *                                       Integer::sum);

   473  * }</pre>

   473  * }</pre>

   474  * though the explicit map-reduce form is more readable and therefore should

   474  * though the explicit map-reduce form is more readable and therefore should

   475  * usually be preferred. The generalized form is provided for cases where

   475  * usually be preferred. The generalized form is provided for cases where

   476  * significant work can be optimized away by combining mapping and reducing

   476  * significant work can be optimized away by combining mapping and reducing