返回布尔值

Question

我的代码是::

public Boolean calculation(){

        Double totalQuantitySum = 0d,totalAmountSum=0d;
        Boolean balanced=false;
        for(MaterialAcceptingRejectSheetCustomizationBean bean: materialAcceptingRejectSheetBean.materialAcceptingRejectSheetCustomizationBeanList){

            if(bean.totalAmount != null && bean.totalQuantity!= null){

                totalQuantitySum += bean.totalQuantity;

                totalAmountSum += bean.totalAmount;
                System.out.println(totalQuantitySum+"  "+totalAmountSum);
            }
            if(totalQuantitySum.equals(materialAcceptingRejectSheetBean.totalQty) && totalAmountSum.equals(materialAcceptingRejectSheetBean.totalAmount)){
                balanced= true;
            }
        }

        System.out.println(balanced);
        return balanced;

    }

为什么这个函数总是返回false ???

Answer 1

我只是瞥了一眼，但我怀疑问题可能是你要比较双倍。处理浮点数时，由于小数位数会产生错误。