static void Main(string[] args)
{
int a, b;
string yesno;
Arithmetic1 c1 = new Arithmetic1();
ArithmeticDelegate d1 = new ArithmeticDelegate(c1.Add);
ArithmeticDelegate d2 = new ArithmeticDelegate(c1.Sub);
ArithmeticDelegate d3 = new ArithmeticDelegate(c1.Mul);
ArithmeticDelegate d4 = new ArithmeticDelegate(c1.Div);
d1 += d2;
d1 += d3;
d1 += d4;
while (true)
{
Console.Write("첫번째 수:");
a = Int32.Parse(Console.ReadLine());
Console.Write("두번째 수:");
b = Int32.Parse(Console.ReadLine());
d1(a, b);
Console.Write("\n");
Console.Write("계속 입력(y), 중지(n):");
yesno = Console.ReadLine();
if (yesno == "n")
{
break;
}
}
}
static void Main(string[] args)
{
ArithmeticOperation1 arithmeticOperation1 = new ArithmeticOperation1();
string ans = "y";
do
{
Console.Write("Enter First Number :");
double num1 = double.Parse(Console.ReadLine());
Console.Write("Enter Second Number :");
double num2 = double.Parse(Console.ReadLine());
Console.WriteLine("1.Addition");
Console.WriteLine("2.Subtraction");
Console.WriteLine("3.Multiplication");
Console.WriteLine("4.Division");
Console.WriteLine("5.Maximum Of Two");
Console.WriteLine("6.Exit");
Console.Write("Which Operation You Want To Perform : ");
int choice = int.Parse(Console.ReadLine());
switch (choice)
{
case 1:
ArithmeticDelegate arithmetic = arithmeticOperation1.Add;
Console.WriteLine("The Addition Of Two Numbers is :{0} ", PerformArithmeticOperation(arithmetic, num1, num2));
break;
case 2:
ArithmeticDelegate arithmetic1 = arithmeticOperation1.Sub;
Console.WriteLine("The Subtraction Of Two Numbers is : {0} ", PerformArithmeticOperation(arithmetic1, num1, num2));
break;
case 3:
ArithmeticDelegate arithmetic2 = arithmeticOperation1.Mul;
Console.WriteLine("The Multiplication Of Two Numbers is : {0}", PerformArithmeticOperation(arithmetic2, num1, num2));
break;
case 4:
ArithmeticDelegate arithmetic3 = arithmeticOperation1.Divide;
Console.WriteLine("The Division Of Two Numbers is : {0}", PerformArithmeticOperation(arithmetic3, num1, num2));
break;
case 5:
ArithmeticDelegate arithmetic4 = arithmeticOperation1.Max;
Console.WriteLine("The Maximum Of Two Numbers is : {0}", PerformArithmeticOperation(arithmetic4, num1, num2));
break;
case 6:
Environment.Exit(0);
break;
}
Console.Write("Want to continue : ");
ans = Console.ReadLine();
} while (ans == "y" || ans == "Y");
}
static void Main(string[] args)
{
ArithmeticDelegate <double> arithmeticDelegateAdd = ArithmeticFunction.Add;
ArithmeticDelegate <double> arithmeticDelegateSubtract = ArithmeticFunction.Subtract;
ArithmeticDelegate <double> arithmeticDelegateDivide = ArithmeticFunction.Divide;
ArithmeticDelegate <double> arithmeticDelegateMultiply = ArithmeticFunction.Multiply;
Console.WriteLine($"The addition of all the inputed numbers gives : {arithmeticDelegateAdd(1,2,3,4)}");
Console.WriteLine($"The Subtraction of all the inputed numbers gives : {arithmeticDelegateSubtract(1, 2, 3, 4)}");
Console.WriteLine($"The division of all the inputed numbers gives : {arithmeticDelegateDivide(1, 2, 3, 4)}");
Console.WriteLine($"The Multiplication of all the inputed numbers gives : {arithmeticDelegateMultiply(1, 2, 3, 4)}");
Console.ReadLine();
}
static void Main(string[] args)
{
ArithmeticDelegate plus = (a, b) => a + b;
ArithmeticDelegate minus = (a, b) => a - b;
ArithmeticDelegate multiply = (a, b) => a * b;
ArithmeticDelegate divide = (a, b) => a / b;
Console.WriteLine(plus.Invoke(3, 4));
Console.WriteLine(minus.Invoke(4, 4));
Console.WriteLine(multiply.Invoke(4, 5));
Console.WriteLine(divide.Invoke(12, 4));
Console.ReadLine();
}
private void btnClickThis_Click(object sender, EventArgs e)
{
lblHelloWorld.Text = "Hello World!";
chk_ex.Text = check_example();
Arithmetic obj = new Arithmetic();
ArithmeticDelegate ex1 = new ArithmeticDelegate(obj.Add);
delegate_example.Text = ex1(10, 20).ToString();
EventExam1 obj2 = new EventExam1();
obj2.ClickMethod(10);
}
public void Test()
{
Arithmetic a = new Arithmetic();
ArithmeticDelegate arithmeticDelegate = new ArithmeticDelegate(a.Add);
arithmeticDelegate += a.Div;
arithmeticDelegate += a.Mul;
arithmeticDelegate += a.Sub;
arithmeticDelegate(100, 20);
arithmeticDelegate -= a.Div;
arithmeticDelegate(200, 50);
}
internal static void Test()
{
DelegatesExample1 de = new DelegatesExample1();
//2.Instantiation
ArithmeticDelegate ad = new ArithmeticDelegate(de.Add);
//3.Invocation(style 1)
var result = ad(100, 200);
Console.WriteLine($"1. ad(100,200)=>{result}");
//3.Invocation(style 2)
result = ad(444, 566);
Console.WriteLine($"1. ad(444,566)=>{result}");
//Multicasting
ad += new ArithmeticDelegate(Minus); //static method uses the class refernce
ad += new ArithmeticDelegate(de.Multiply);
ad += new ArithmeticDelegate(Divide);
Console.WriteLine("Multicasted Successfully..Invoking");
result = ad.Invoke(5000, 100);
Console.WriteLine($"3.ad.Invoke(5000,100)=>{result}");
//Iterate through the list
foreach (Delegate item in ad.GetInvocationList())
{
//if (item.Method.Name.StartsWith("M")) ///we can give condition for what we neeed particularly
//{
object res = item.DynamicInvoke(3333, 11);
Console.WriteLine($"\t{item.Method.Name}returned {res}");
//}
}
Console.WriteLine("press any key to terminate");
Console.ReadKey();
}
static void Main(string[] args)
{
var calculator = new Calculator();
var divideResult = calculator.Divide(4, 0, () =>
{
Console.WriteLine("An error occured. Can't divide by 0"); return(0);
});
Console.WriteLine($" Divide: {divideResult}");
var operation = new ArithmeticDelegate(calculator.Add);
var resultOfOperation = operation(1, 3);
Console.WriteLine($"Add: {resultOfOperation}");
var sqrt = calculator.GetRadical(-16);
Console.WriteLine($"Radical: {sqrt}");
Console.ReadKey();
}
static void Main(string[] args)
{
Arithmetic obj = new Arithmetic();
ArithmeticDelegate ex1 = new ArithmeticDelegate(obj.Add);
System.Console.WriteLine("Add: ex(20, 10) = {0}", ex1(20, 10));
ex1 = new ArithmeticDelegate(obj.Sub);
System.Console.WriteLine("Sub: ex(20, 10) = {0}", ex1(20, 10));
ex1 = new ArithmeticDelegate(obj.Mul);
System.Console.WriteLine("Mul: ex(20, 10) = {0}", ex1(20, 10));
ex1 = new ArithmeticDelegate(obj.Div);
System.Console.WriteLine("Div: ex(20, 10) = {0}", ex1(20, 10));
PrintInfoDelegate ex2 = new PrintInfoDelegate(obj.PrintInfo);
ex2("델리게이트 예제");
while (true)
{
}
}
private int PerformOperation(int a, int b, ArithmeticDelegate handler)
{
return(handler(a, b));
}
public void OperationDelegate(int x, int y, ArithmeticDelegate del)
{
int answer = del(x, y);
Console.WriteLine(answer);
}
public static double PerformArithmeticOperation(ArithmeticDelegate arithmeticDelegate, double a, double b)
{
return(arithmeticDelegate(a, b));
}
