public Indication(Water _water_k, Water _water_b, Electricity _electricity, DateTime _date)
{
Water_Kitchen = _water_k;
Water_Bathroom = _water_b;
Electricity = _electricity;
Date = _date;
}
public double GetSumm()
{
return(Water_Kitchen.GetSumm() + Water_Bathroom.GetSumm() + Electricity.GetSumm());
}