Modifying the program for different data types

The nice thing now is this: imagine you want to redo this; you can just type int as an example and change the data type to an integer or decimal type and the methods. The code that we wrote in this chapter operates equally well on these things:

int x = 25, y = 34;
sampLabel.Text = $"x={x}, y={y}";
GenMethods.Swap<int> (ref x, ref y);
sampLabel.Text += $"<br>x={x}, y={y}";
sampLabel.Text += GenMethods.Compare<int>(x, y);

The only thing is, of course, if you right-click on int and select Go To Definition in the drop-down menu (F12), you'll see that it says public struct Int32 and it implements IComparable:

This will work due to the fact that our function has a constraint where it says where T should be comparable, as shown here:

public static string Compare<T>(T x, T y) where T : IComparable

These are the basics.