private void btnExtraction_Click(object sender, EventArgs e)
{
FourOperations operations = new FourOperations();
math_Op op = operations.Extraction;
sonuc = op(vs[0], vs[1]);
txtSonuc.Text = "";
txtSonuc.Text = sonuc.ToString();
}
private void btnDivide_Click(object sender, EventArgs e)
{
//delegate used
FourOperations operations = new FourOperations();
math_Op op = operations.Divide;
sonuc = op(vs[0], vs[1]);
txtSonuc.Text = "";
txtSonuc.Text = sonuc.ToString();
}
public Opdracht4()
{
/*
* Opdracht 6.4:
* Schrijf een methode Calculate die als resultaat de uitkomst van een berekening geeft. De methode
* moet 3 parameters hebben:
* • De eerste parameter is voor het eerste getal. Dit getal kan ook decimalen bevatten
* • De tweede parameter is voor het tweede getal en kan ook decimalen bevatten.
* • De derde parameter is één enkel teken (char) dat aangeeft welke berekening uitgevoerd dient te worden:
*
* ○ + : de som va de getallen
* ○ - : het verschil tussen beide getallen
* ○ * : het product van beide getallen
* ○ / : het quotiënt (eerste getal gedeeld door tweede getal; denk eraan: delen door nul blijft flauwekul)
* ○ % : het restant van eerste getal gedeeld door tweede getal (delen door nul is???)
*/
BACKTOTOP:
double firstNumber, secondNumber;
Console.Write("\n\tEnter your 'first number': ");
firstNumber = Convert.ToDouble(Console.ReadLine());
Console.Write("\n\tEnter your 'second number': ");
secondNumber = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("");
MAKEYOURCHOICE:
Console.Write(" Make your choice? (Addition:'1' || Subtraction:'2' || Multiplication:'3' || Division:'4' || Module:'5') => ");
char userChoice = Convert.ToChar(Console.ReadLine());
switch (userChoice)
{
case '1':
FourOperations DoAddition = new FourOperations();
double additionResult = DoAddition.SumNumbers(firstNumber, secondNumber);
Console.WriteLine("\n\tAddition Result: {0}", additionResult);
break;
case '2':
FourOperations DoSubtraction = new FourOperations();
double subtractionResult = DoSubtraction.SubtractNumbers(firstNumber, secondNumber);
Console.WriteLine("\n\tSubtraction Result: {0}", subtractionResult);
break;
case '3':
FourOperations DoMultiplication = new FourOperations();
double multiplicationResult = DoMultiplication.MultiplyNumbers(firstNumber, secondNumber);
Console.WriteLine("\n\tMutiplication Result: {0}", multiplicationResult);
break;
case '4':
FourOperations DoDivision = new FourOperations();
double divisionResult = DoDivision.DevideNumbers(firstNumber, secondNumber);
Console.WriteLine("\n\tDivision Result: {0}", divisionResult);
break;
case '5':
FourOperations FindModule = new FourOperations();
double ModuleResult = FindModule.FindModuleOfNumbers(firstNumber, secondNumber);
Console.WriteLine("\n\tDivision Result: {0}", ModuleResult);
break;
default:
Console.Clear();
Console.WriteLine("You entered an invalid value! Please enter a valid value.\n");
goto MAKEYOURCHOICE;
}
TRYAGAIN:
Console.Write("\nWould you like to do another four operation? (YES:'y' or NO:'n') => ");
string doAnotherOperation = Console.ReadLine();
if (doAnotherOperation == "y" || doAnotherOperation == "Y" || doAnotherOperation == "YES" || doAnotherOperation == "yes")
{
Console.Clear();
goto BACKTOTOP;
}
else if (doAnotherOperation == "n" || doAnotherOperation == "N" || doAnotherOperation == "NO" || doAnotherOperation == "no")
{
Console.WriteLine("Bye bye ...");
Console.WriteLine("\nPress any key to close the Console Window!");
}
else
{
Console.WriteLine("You entered an invalid value! Please try again.");
goto TRYAGAIN;
}
Console.ReadKey();
}
