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class Stock{
   double profit;
   double profitPercentage;
   public double getProfit(){
      retu profit;
   }
   public double getProfitPercentage(){
      retu profitPercentage;
   }
}
List<Stock> stocks = getAllStocks();
stocks.stream.collect(Collectors.summarizingDouble(Stock:getProfit)).getSum();
stocks.stream.collect(Collectors.summarizingDouble(Stock:getProfitPercentage)).getSum();

I could not find out way to do in single pass of stream. Any help or pointer should be good.

asked 1 min ago

برچسب: نویسنده: استخدام کار تاريخ: يکشنبه 17 مرداد 1395 ساعت: 18:35

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