File Stream C#

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap;
using System.Xml.Serialization;
using System.Collections;
[Serializable]
public class Radio {
    public bool hasTweeters;
    public bool hasSubWoofers;
    public double[] stationPresets;
    [NonSerialized]
    public string radioID = "001";
}
[Serializable]
public class Car {
    public Radio theRadio = new Radio();
    public bool isHatchBack;
}
[Serializable, XmlRoot(Namespace = "http://www.yoursite.com")]
public class JamesBondCar : Car {
    public JamesBondCar(bool SkyWorthy, bool SeaWorthy) {
        canFly = SkyWorthy;
        canSubmerge = SeaWorthy;
    }
    public JamesBondCar() { }
    [XmlAttribute]
    public bool canFly;
    [XmlAttribute]
    public bool canSubmerge;
}
class Program {
    static void Main(string[] args) {
        JamesBondCar jbc = new JamesBondCar();
        jbc.canFly = true;
        jbc.canSubmerge = false;
        jbc.theRadio.stationPresets = new double[] { 89.3, 105.1, 97.1 };
        jbc.theRadio.hasTweeters = true;
        BinaryFormatter binFormat = new BinaryFormatter();
        Stream fStream = new FileStream("CarData.dat",FileMode.Create, FileAccess.Write, FileShare.None);
        binFormat.Serialize(fStream, jbc);
        fStream.Close();
        fStream = File.OpenRead("CarData.dat");
        JamesBondCar carFromDisk =(JamesBondCar)binFormat.Deserialize(fStream);
        Console.WriteLine("Can this car fly? : {0}", carFromDisk.canFly);
        fStream.Close();
        SoapFormatter soapForamt = new SoapFormatter();
        fStream = new FileStream("CarData.soap",FileMode.Create, FileAccess.Write, FileShare.None);
        soapForamt.Serialize(fStream, jbc);
        fStream.Close();
        XmlSerializer xmlForamt = new XmlSerializer(typeof(JamesBondCar),new Type[] { typeof(Radio), typeof(Car) });
        fStream = new FileStream("CarData.xml",FileMode.Create, FileAccess.Write, FileShare.None);
        xmlForamt.Serialize(fStream, jbc);
        fStream.Close();
        ArrayList myCars = new ArrayList();
        myCars.Add(new JamesBondCar(true, true));
        myCars.Add(new JamesBondCar(true, false));
        myCars.Add(new JamesBondCar(false, true));
        myCars.Add(new JamesBondCar(false, false));
        fStream = new FileStream("CarCollection.xml",FileMode.Create, FileAccess.Write, FileShare.None);
        xmlForamt = new XmlSerializer(typeof(ArrayList),new Type[] { typeof(JamesBondCar), typeof(Car), typeof(Radio) });
        xmlForamt.Serialize(fStream, myCars);
        fStream.Close();
    }
}