Compress and decompress byte array in CSharp

// www  .  jav  a2s  .  c  om

using System;
using System.Text;
using System.IO;
using System.IO.Compression;

class Program
{
    static void Main(string[] args)
    {
        UnicodeEncoding uniEncode = new UnicodeEncoding();

        byte[] bytesToCompress = uniEncode.GetBytes("example text to compress and decompress");
        Console.WriteLine("starting with: " + uniEncode.GetString(bytesToCompress));

        using (FileStream fileToCompress = File.Create("examplefile.gz"))
        {
            using (GZipStream compressionStream = new GZipStream(fileToCompress, CompressionMode.Compress))
            {
                compressionStream.Write(bytesToCompress, 0, bytesToCompress.Length);
            }
        }
        
        byte[] decompressedBytes = new byte[bytesToCompress.Length];
        using (FileStream fileToDecompress = File.Open("examplefile.gz", FileMode.Open))
        {
            using (GZipStream decompressionStream = new GZipStream(fileToDecompress, CompressionMode.Decompress))
            {
                decompressionStream.Read(decompressedBytes, 0, bytesToCompress.Length);
            }
        }

        Console.WriteLine("ending with: " + uniEncode.GetString(decompressedBytes));
    }
}