如何在c#中读取使用Java程序编写的二进制文件，反之亦然

下面是Java程序。写和读操作显示我正确的值。但是当我在c#中阅读相同的二进制文件时。我得到了不正确的值。

JAVA程序

///////////////////////////////////////////////////////////////////////////
public class Main {
    public static void main(String[] args) {
        // ReadFile o = new ReadFile();
        // o.Read("csharp123.dat");
        WriteFile w = new WriteFile();
        w.Write("java123.dat");
        w = null;
        ReadFile r = new ReadFile();
        r.Read("java123.dat");
        r = null;
    }
}
/////////////////////////////////////////////////////////////////////
class WriteFile {
    Random m_oRN = new Random();
    private int getRandom()
    {
        return m_oRN.nextInt(100);
    }
    public void Write(String strFileName) {
        DataOutputStream dos = null;
        try {
            dos = new DataOutputStream(new FileOutputStream(strFileName));
            dos.writeInt(123);
            dos.writeInt(234);
            dos.writeInt(345);
            dos.flush();
            dos.close();
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}
///////////////////////////////////////////////////////////////////////////
//
class ReadFile {
    public void Read(String strFileName) {
        try {
            File fp = new File(strFileName);
            FileInputStream fis = new FileInputStream(fp);
            DataInputStream din = new DataInputStream(fis);
            int count = (int) (fp.length() / 4);
            for (int i = 0; i < count; i++) {
                System.out.println(din.readInt());
            }
            din.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

//---------------------------------------------------c#项目

private void msViewRead_Click(object sender, EventArgs e)
{
    OpenFileDialog dlg = new OpenFileDialog();
    string strLastPath = RegistryAccess.ReadRegistryString("LastSavedPath");
    dlg.InitialDirectory = strLastPath.Length == 0 ? Application.StartupPath : strLastPath;
    dlg.Filter = "Data file (*.dat)|*.dat|All file (*.*)|*.*||";
    dlg.FilterIndex = 1;
    if (dlg.ShowDialog() != DialogResult.OK)
        return;
    this.Cursor = Cursors.WaitCursor;
    string strValue = String.Empty;
    using (var fs = File.Open(dlg.FileName, FileMode.Open))
    using (var br = new BinaryReader(fs))
    {
        var vPos = 0;
        var vLen = (int)br.BaseStream.Length;
        while (vPos < vLen)
        {
             strValue += br.ReadInt32();
             strValue += ''n';
             vPos += sizeof(int);
        }
    }
    this.Cursor = Cursors.Default;
    MessageBox.Show(strValue, "Read Binary File");

}

这里是垃圾数据