//Visual Basic 2008/2010 Containment Object Oriented Programming
public class Position {
    private int m_X;
    private int m_Y;
    public virtual int X {
        get {
            X = this.m_X;
        }
        set {
            this.m_X = value;
        }
    }
    public virtual int Y {
        get {
            Y = this.m_Y;
        }
        set {
            this.m_Y = value;
        }
    }
}
public class PositionTextFixture {
    void Main() {
        Position position1 = new Position();
        Console.WriteLine((position1.X == 0));
        Console.WriteLine((position1.Y == 0));
        position1.X = 5;
        Console.WriteLine((position1.X == 5));
        Console.WriteLine((position1.Y == 0));
        position1.Y = 10;
        Console.WriteLine((position1.X == 5));
        Console.WriteLine((position1.Y == 10));
        Console.ReadLine();
    }
}
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