static void Main(string[] args)
{
double side1, side2, side3;
string input;
do
{
// get user input on lengths of all three sides of a triangle and validate
Console.Write("Please enter length of first side of triangle: ");
while (!double.TryParse(Console.ReadLine(), out side1))
{
Console.WriteLine("Invalid format, please input again!");
}
Console.Write("Please enter length of second side of triangle: ");
while (!double.TryParse(Console.ReadLine(), out side2))
{
Console.WriteLine("Invalid format, please input again!");
}
Console.Write("Please enter length of third side of triangle: ");
while (!double.TryParse(Console.ReadLine(), out side3))
{
Console.WriteLine("Invalid format, please input again!");
}
// determine if this generates a valid triangle and classify which type of triangle this is
Triangle triangle = new Triangle(side1, side2, side3);
Console.WriteLine("Triangle is " + (triangle.IsTriangle()?"valid":"invalid") + " and is " + triangle.Classify());
Console.WriteLine("\nEnter 'q' to quit or any other key to continue: ");
input = Console.ReadLine();
}while (!input.Equals("q"));
}
