C#

public class Foo<T>
{
  T total=default(T);

  void Add(T val)
  {
    total+=val;
  }
}

<br />
public void XYZ_PaintData(object sender, PaintEventArgs e)<br />
        {<br />
            Graphics g = e.Graphics;<br />
            Pen penRed = new Pen(Color.Red, 2);<br />
            Pen penGreen = new Pen(Color.Green, 2);<br />
            Pen penBlue = new Pen(Color.Blue, 2);<br />
            Pen penWhite = new Pen(Color.White, 1);<br />
            Pen penBack = new Pen(Color.Gray, 1);<br />
<br />
            //Graphics g = this.CreateGraphics();<br />
            //g.Clear(this.BackColor);<br />
            this.DoubleBuffered = true;<br />
<br />
            /*Pen penRed = new Pen(Color.Red, 2);<br />
            Pen penGreen = new Pen(Color.Green, 2);<br />
            Pen penBlue = new Pen(Color.Blue, 2);<br />
            Pen penWhite = new Pen(Color.White, 1);<br />
            Pen penBack = new Pen(Color.Gray, 1);*/<br />
               <br />
            penBack.DashStyle = DashStyle.Solid;<br />
<br />
            // Background<br />
            g.DrawLine(penBack, 375, 105, 375, 600);<br />
            g.DrawLine(penBack, 50, 325, 650, 325);<br />
            g.DrawRectangle(penBack, x0XYZ, y0XYZ, x1XYZ, y1XYZ);<br />
            AccelReadings = true;<br />
<br />
            //Line that is drawn when timer event occurs<br />
            g.DrawRectangle(Pens.Black, xMXYZ, yMXYZ, 2, 2);<br />
           <br />
<br />
        }<br />