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Note

It is typically considered bad style to define public data within a class or structure. Rather, you will want to

define private data, which can be accessed and changed using public properties. These details will be examined in

Chapter 5.

Here is a Main() method that takes our Point type out for a test drive. Figure 4-9 shows the pro-

gram’s output.

static void Main(string[] args)

{

Console.WriteLine("***** A First Look at Structures *****");

// Create an initial Point.

Point myPoint;

myPoint.X = 349;

myPoint.Y = 76;

myPoint.Display();

// Adjust the X and Y values.

myPoint.Increment();

myPoint.Display();

Console.ReadLine();

}

Figure 4-9.

Our Point structure in action

Creating Structure Variables

When you wish to create a structure variable, you have a variety of options. Here, we simply create a

Point variable and assign each piece of public field data before invoking its members. If we do not

assign each piece of public field data (X and Y in our case) before making use of the structure, we

will receive a compiler error: