public static void Main()
Console.WriteLine("Select the operation");
Console.WriteLine("1 . Addition");
Console.WriteLine("2 . Subtraction");
Console.WriteLine("3 . Multiplication");
Console.WriteLine("4 . Division");
Console.WriteLine("5 . Exit");
Console.WriteLine("Enter ur choice :");
choice = int.Parse(Console.ReadLine());
Console.WriteLine("Enter two numbers:");
a = double.Parse(Console.ReadLine());
b = double.Parse(Console.ReadLine());
Console.WriteLine("Result of Addition : "+(a+b));break;
Console.WriteLine("Enter two numbers:");
a = double.Parse(Console.ReadLine());
b = double.Parse(Console.ReadLine());
Console.WriteLine("Result of Subtraction: "+(a-b));break;
Console.WriteLine("Enter two numbers:");
a = double.Parse(Console.ReadLine());
b = double.Parse(Console.ReadLine());
Console.WriteLine("Result of Multiplication: "+(a*b));break;
Console.WriteLine("Enter two numbers:");
a = double.Parse(Console.ReadLine());
b = double.Parse(Console.ReadLine());
Console.WriteLine("Division not possible ");
Console.WriteLine("Result of Division : "+(a/b));
Console.WriteLine("Invalid selection");