private static Tuple <string, decimal> GetNewPurchaseInfo()
{
bool isInputValid;
string purchaseName;
decimal purchasePrice;
do
{
CH.WriteSeparator();
purchaseName = CH.GetStringFromConsole("Please input the purchase name [Butter/Wine/Caviar/ e.t.c.]");
var purchasePriseStr =
CH.GetStringFromConsole($"Please input the purchase price [{0.5m:C}/{9.99m:C}/ e.t.c.]");
var isValidPurchaseName = !string.IsNullOrWhiteSpace(purchaseName);
var isValidPurchasePrice = decimal.TryParse(purchasePriseStr, out purchasePrice);
isInputValid = isValidPurchaseName && isValidPurchasePrice;
if (!isInputValid)
{
Console.WriteLine("Incorrect input. Try again.");
}
} while (!isInputValid);
return(new Tuple <string, decimal>(purchaseName, purchasePrice));
}
private static void Main(string[] args)
{
CH.SetConsoleOutputEncoding();
CH.SetConsoleColor();
const string inputMsg = "Введитк натуральное число (n>0) : ";
const string noPrimeMsg = "Нет простых чисел в выбранном диапазоне";
const string invalidInputMsg = "Введены неверные значения...";
const string outMsg = "{0,10}";
var inputString = CH.GetStringFromConsole(inputMsg);
if (!uint.TryParse(inputString, out var n))
{
Console.WriteLine(invalidInputMsg);
Console.ReadKey();
return;
}
CH.WriteSeparator();
if (n == 1)
{
Console.WriteLine(noPrimeMsg);
}
else if (n >= 2)
{
Console.Write(outMsg, 2);
for (uint number = 2; number <= n; number++)
{
var isPrime = false;
for (uint oldNumber = 2; oldNumber <= Math.Ceiling(Math.Sqrt(number)); ++oldNumber)
{
if (number % oldNumber != 0)
{
isPrime = true;
break;
}
}
if (isPrime)
{
Console.Write(outMsg, number);
}
}
}
Console.WriteLine();
CH.WriteSeparator();
//exit
Console.ReadKey();
}
private static void Main(string[] args)
{
CH.SetConsoleOutputEncoding();
CH.SetConsoleColor();
//output caption
CH.WriteSeparator();
Console.WriteLine("\t\t\t\t\t\t- Sphere Calculator -");
CH.WriteSeparator();
Console.WriteLine("\t\t\t\t\t\t-= Basic Formulas =-");
Console.WriteLine("\t\t\t\t\tVolume=(4/3)\u03C0R\u00B3 m\u00B3 & Area = 4\u03C0R\u00B2 m\u00B2");
//input radius of sphere
CH.WriteSeparator();
var separator = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator;
double sphereRadius;
string sphereRadiusString;
do
{
sphereRadiusString = CH.GetStringFromConsole(
$"Please enter the radius (R) of your sphere in meters (m) [you must separate of number parts with \"{separator}\" char]");
} while (!double.TryParse(sphereRadiusString, out sphereRadius));
//convertation & calculations
var sphereV = 4.0 / 3.0 * Math.PI * Math.Pow(sphereRadius, 3.0);
var sphereA = 4.0 * Math.PI * Math.Pow(sphereRadius, 2.0);
//output results
Console.ForegroundColor = ConsoleColor.DarkGreen;
CH.WriteSeparator();
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine(
"\tVolume=(4/3)\u03C0R\u00B3={0:0.###} m\u00B3{1}\tArea=(4/3)\u03C0R\u00B3={2:0.###} m\u00B2", sphereV,
Environment.NewLine, sphereA);
Console.ForegroundColor = ConsoleColor.DarkGreen;
CH.WriteSeparator();
Console.WriteLine(
$"\tThank you for using our program, we hope it helped you :D {Environment.NewLine}\tGoodbye!");
//exit
Console.ReadKey();
}
private static decimal GetPriceFilterValue()
{
bool isInputValid;
decimal priceFilterValue;
do
{
CH.WriteSeparator();
var priceFilterValueStr = CH.GetStringFromConsole($"filter value [{0.5m:C}/{9.99m:C}]");
isInputValid = decimal.TryParse(priceFilterValueStr, out priceFilterValue);
} while (!isInputValid);
return(priceFilterValue);
}
private static void Main(string[] args)
{
CH.SetConsoleOutputEncoding();
CH.SetConsoleColor();
const int numberOfPeriods = 12;
const string inputMsg1 = "Введите cумму кредитования, \u00A4";
const string inputMsg2 = "Введите ставку кредитования, % [1 - 100% как 15,5% ]";
const string paymentTypeMsg = "Выберите вид платежа:";
const string paymentTypeMsg1 =
"1 - аннуитетный платеж - это равный по сумме ежемесячный платеж по кредиту;";
const string paymentTypeMsg2 =
"2 - дифференцированный платеж - это ежемесячный платеж, уменьшающийся к концу срока кредитования.";
const string invalidInputMsg = "Введены неверные значения...";
const string tableLineMsg =
" | {0,6} | {1,13:0.##}\u00A4 | {2,13:0.##}\u00A4 | {3,13:0.##}\u00A4 | {4,13:0.##}\u00A4 |";
const string tableFooterLineMsg = " | Итого: | {0,30:0.##}\u00A4 | {1,13:0.##}\u00A4 | {2,13:0.##}\u00A4 |";
CH.WriteSeparator();
//input
var creditAmountString = CH.GetStringFromConsole(inputMsg1);
var creditRateString = CH.GetStringFromConsole(inputMsg2);
CH.WriteSeparator();
var amountIsInvalid = !decimal.TryParse(creditAmountString, out var originalCreditAmount);
var rateIsInvalid = !double.TryParse(creditRateString, out var creditInterestRate);
if (amountIsInvalid || rateIsInvalid || originalCreditAmount <= 1 || creditInterestRate < 1 ||
creditInterestRate > 100)
{
Console.WriteLine(invalidInputMsg);
Console.ReadKey();
return;
}
Console.WriteLine(paymentTypeMsg);
var choosedStringIndex = CH.GetChoiceFromUser(new[] { paymentTypeMsg1, paymentTypeMsg2 }, true).ChoisedIndex;
CH.WriteSeparator();
var sumOfInterestCharges = 0m;
var sumOfPayments = 0m;
var debt = originalCreditAmount;
creditInterestRate *= 0.01;
//Table
Console.WriteLine(tableLineMsg, "Период", "Задолженность", "Начисленные %",
"Основной долг", "Сумма платежа");
if (choosedStringIndex == 0) //аннуитетный платеж
{
var monthlyCreditInterestRate = creditInterestRate / 12;
var amountOfPayment = originalCreditAmount *
(decimal)(monthlyCreditInterestRate +
monthlyCreditInterestRate /
(Math.Pow(1 + monthlyCreditInterestRate, 12d) - 1d));
for (var period = 1; period <= 12; period++)
{
var interestCharges = debt * (decimal)monthlyCreditInterestRate;
var repaymentOfCredit = amountOfPayment - interestCharges;
Console.WriteLine(tableLineMsg, period, debt, interestCharges,
repaymentOfCredit, amountOfPayment);
debt -= repaymentOfCredit;
sumOfInterestCharges += interestCharges;
sumOfPayments += amountOfPayment;
}
}
else //дифференцированный платеж
{
var repaymentOfCredit = originalCreditAmount / numberOfPeriods;
var currentYear = DateTime.Today.Year;
for (var period = 1; period <= 12; period++)
{
var interestCharges =
debt * (decimal)(creditInterestRate * DateTime.DaysInMonth(currentYear, period) / 365d);
var amountOfPayment = repaymentOfCredit + interestCharges;
Console.WriteLine(tableLineMsg, period, debt, interestCharges,
repaymentOfCredit, amountOfPayment);
debt -= repaymentOfCredit;
sumOfInterestCharges += interestCharges;
sumOfPayments += amountOfPayment;
}
}
CH.WriteSeparator();
Console.WriteLine(tableFooterLineMsg, sumOfInterestCharges, originalCreditAmount, sumOfPayments);
CH.WriteSeparator();
//Exit
Console.ReadKey();
}