Access Modifiers

public - the member can be reached from anywhere. This is the least restrictive visibility. Enums and interfaces are, by default, publicly visible.

protected - members can only be reached from within the same class, or from a class which inherits from this class.

internal - members can be reached from within the same project only.

protected internal - the same as internal, except that also classes which inherits from this class can reach it members, even from another project.

private - can only be reached by members from the same class. This is the most restrictive visibility. Classes and structs are by default set to private visibility.

Static members

Example:

public class Rectangle

{

    private int width, height;

    public Rectangle(int width, int height)

    {

        this.width = width;

        this.height = height;

    }

    public void OutputArea()

    {

        Console.WriteLine("Area output: " + Rectangle.CalculateArea(this.width, this.height));

    }

    public static int CalculateArea(int width, int height)

    {

        return width * height;

    }

}

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