private void EqualButton_Click(object sender, RoutedEventArgs e)
{
double newNumber;
if (double.TryParse(resultLabel.Content.ToString(), out newNumber))
{
switch (selectedOperator)
{
case Operator.Addition:
result = MathLogic.Addition(lastNumber, newNumber);
break;
case Operator.Subtraction:
result = MathLogic.Subtraction(lastNumber, newNumber);
break;
case Operator.Multiplication:
result = MathLogic.Multiplication(lastNumber, newNumber);
break;
case Operator.Division:
result = MathLogic.Division(lastNumber, newNumber);
break;
}
resultLabel.Content = result.ToString();
}
}
static void Main(string[] args)
{
MathLogic m = new MathLogic();
m.CircleArea(5.5);
m.Add(45, 65);
}
static void Main(string[] args)
{
// 2. Instantiate a delegate
//DelShapes ds = new DelShapes(ShapeArea.CircleArea);
/*DelShapes ds = ShapeArea.CircleArea;
* ds += ShapeArea.SquareArea;//InvocationList - FIFO
* ds -= ShapeArea.CircleArea;
* //3. Invocation of Delegates
* //ds.Invoke(3);//old way invoking delegates
* ds();*/
//Predefined delegates in C#
//1. Action- Delegate of type void
// Delegate tied to a named Method
//delAct += ShapeArea.CircleArea;
//Delegate is tied to an anonymous method
Action <double> delAct;
/*delAct = delegate (double radius)
* {
* double area = Math.PI * radius * radius;
* Console.WriteLine($"Area of a circle with radius {radius} cm is {area}");
* };*/
//delAct += ShapeArea.SquareArea;
/*delAct += delegate (double s)
* {
* double area = s * s;
* Console.WriteLine($"Area of a Square with side {s} cm is {area}");
* };*/
delAct = (r) => {
double v = Math.PI * r * r;
Console.WriteLine(v);
};
//delAct(6);
//2. Func - Delegate of return type
Func <double, double, double> DelFunc = ShapeArea.RectArea;
//Console.WriteLine($"Area of rectangle is {DelFunc(4,8)}");
MathLogic m = new MathLogic();
Func <int, int, int> DelCalculate = (a, b) => a + b;
/*DelCalculate = m.Add;
* DelCalculate += m.Sub;
* DelCalculate +=m.Multiply;
* DelCalculate +=m.Divide;
* DelCalculate -= m.Divide;*/
Console.WriteLine(DelCalculate(5, 6));
//3. Predicate - a delgate of type bool
//Anonymous Methods
}
public void PercentageTest(double expected, double val) => Assert.AreEqual(expected, MathLogic.ConvertToPercent(val));
public void DivideTest(double expected, double val1, double val2) => Assert.AreEqual(expected, MathLogic.Divide(val1, val2));
public void MultiplyTest(double expected, double val1, double val2) => Assert.AreEqual(expected, MathLogic.Multiply(val1, val2));
public void SubtractTest(double expected, double val1, double val2) => Assert.AreEqual(expected, MathLogic.Subtract(val1, val2));
public void AddTest(double expected, double val1, double val2) => Assert.AreEqual(expected, MathLogic.Add(val1, val2), Delta);
public static double CircleArea(this MathLogic m, double r)
{
return(Math.PI * r * r);
}
public void XNORTest()
{
TestLogicOperator(new float[] { 1, 1, 0, 0 }, new float[] { 1, 0, 1, 0 }, new float[] { 1, 0, 0, 1 }, (a, b) => MathLogic.XNOR(a, b), "xnor");
}
public void NANDTest()
{
TestLogicOperator(new float[] { 1, 1, 0, 0 }, new float[] { 1, 0, 1, 0 }, new float[] { 0, 1, 1, 1 }, (a, b) => MathLogic.NAND(a, b), "nand");
}
public void NOTTest()
{
TestLogicOperator(new float[] { 1, 0 }, new float[] { 0, 0 }, new float[] { 0, 1 }, (a, b) => MathLogic.NOT(a), "not");
}