public static void DocumentsForDate(Bookkeeping bookkeepingArr, int dateDay, int dateMonth, int dateYear)
{
int num = 0;
Document[] array = (Document[])bookkeepingArr.Get();
for (int i = 0; i < array.Length; i++)
{
if (array[i].GetDate().Day == dateDay && array[i].GetDate().Month == dateMonth && array[i].GetDate().Year == dateYear)
{
num++;
Console.WriteLine($"{num}. {array[i]}");
}
}
}
public static int CheckAmount(Bookkeeping bookkeepingArr)
{
int checkAmount = 0;
Document[] array = (Document[])bookkeepingArr.Get();
for (int i = 0; i < array.Length; i++)
{
if (array[i] is Check)
{
checkAmount++;
}
}
return(checkAmount);
}
public static double SumPrice(Bookkeeping bookkeepingArr, string name)
{
double sum = 0;
Document[] array = (Document[])bookkeepingArr.Get();
for (int i = 0; i < array.Length; i++)
{
if (array[i] is Invoice)
{
if (array[i].NameOfOrganization == name)
{
sum += array[i].Price;
}
}
}
return(sum);
}
