public static void Main()
{
int first_number;
int second_number;
string operate;
float result;
Console.Write("Please enter the first integer: ");
first_number = Convert.ToInt32(Console.ReadLine());
Console.Write("Please enter the second integer: ");
second_number = Convert.ToInt32(Console.ReadLine());
Console.Write("Please enter an operator (+, -, /, *): ");
Calculator1 c = new Calculator1();
operate = Console.ReadLine();
switch (operate)
{
case "-":
result = c.subtract(first_number, second_number);
break;
case "+":
result = c.add(first_number, second_number);
break;
case "/":
result = c.divide(first_number, second_number);
break;
case "*":
result = c.multiply(first_number, second_number);
break;
default:
result = 0;
break;
}
Console.WriteLine(first_number.ToString() + " " + operate + " " + second_number.ToString() + " = " + result.ToString());
}
static void Main(string[] args)
{
Calculator1 c1 = new Calculator1();
Console.WriteLine(c1.add(1, 2).ToString());
}