static void Main(string[] args)
{
bool flag = true;
while (flag)
{
Console.WriteLine("Please select shape to process or [Q]uit:\n [C]ircle \n [R]ectangle \n [S]quare \n [T]raingle \n");
string program = (Console.ReadLine());
if (program == "q" || program == "Q")
{
Environment.Exit(0);
}
else if (program == "c" || program == "C")
{
Console.WriteLine("Please enter circle radius: ");
double r = double.Parse(Console.ReadLine());
Circle circle = new Circle(r);
Console.WriteLine("Please select output: \n [A]rea \n [P]erimeter \n [B]oth\n");
string a = (Console.ReadLine());
if (a == "a" || a == "A")
{
Console.WriteLine("Area of circle: " + circle.Area() + "\n");
}
else if (a == "p" || a == "P")
{
Console.WriteLine("Perimeter of circle: " + circle.Perimeter() + "\n");
}
else if (a == "b" || a == "B")
{
Console.WriteLine("Perimeter of circle: " + circle.Perimeter() + " \n Area of the circle: " + circle.Area() + "\n");
}
}
else if (program == "r" || program == "R")
{
Console.WriteLine("Please enter rectangle lengh: ");
double l = double.Parse(Console.ReadLine());
Console.WriteLine("Please enter rectangle width: ");
double w = double.Parse(Console.ReadLine());
Rectangle rectangle = new Rectangle(l, w);
Console.WriteLine("Please select output: \n [A]rea \n [P]erimeter \n [B]oth\n");
string a = (Console.ReadLine());
if (a == "a" || a == "A")
{
Console.WriteLine("Area of rectangle: " + rectangle.Area() + "\n");
}
else if (a == "p" || a == "P")
{
Console.WriteLine(" Perimeter of rectangle: " + rectangle.Perimeter() + "\n");
}
else if (a == "b" || a == "B")
{
Console.WriteLine("Perimeter of rectangle: " + rectangle.Perimeter() + " \n Area of the rectagle: " + rectangle.Area() + "\n");
}
}
else if (program == "s" || program == "S")
{
Console.WriteLine("Please enter side of square: ");
double side = double.Parse(Console.ReadLine());
Square square = new Square(side);
Console.WriteLine("Please select output: \n [A]rea \n [P]erimeter \n [B]oth\n");
string a = (Console.ReadLine());
if (a == "a" || a == "A")
{
Console.WriteLine("Area of square: " + square.Area() + "\n");
}
else if (a == "p")
{
Console.WriteLine(" Perimeter of square: " + square.Perimeter() + "\n");
}
else if (a == "b")
{
Console.WriteLine("Perimeter of square: " + square.Perimeter() + " \n Area of the square: " + square.Area() + "\n");
}
}
else if (program == "t" || program == "T")
{
Console.WriteLine("Please enter triangle side a: ");
double aside = double.Parse(Console.ReadLine());
Console.WriteLine("Please enter triangel side b: ");
double bside = double.Parse(Console.ReadLine());
Console.WriteLine("Please enter triangel side c: ");
double cside = double.Parse(Console.ReadLine());
Triangle triangle = new Triangle(aside, bside, cside);
Console.WriteLine("Please select output: \n [A]rea \n [P]erimeter \n [B]oth\n");
string a = (Console.ReadLine());
if (a == "a" || a == "A")
{
Console.WriteLine("Area of triange: " + triangle.Area() + "\n");
}
else if (a == "p" || a == "P")
{
Console.WriteLine(" Perimeter of triange: " + triangle.Perimeter() + "\n");
}
else if (a == "b" || a == "B")
{
Console.WriteLine("Perimeter of triange: " + triangle.Perimeter() + " \n Area of the triange: " + triangle.Area() + "\n");
}
}
}
}