C Converting byte array to string and printing out to console

Question

public void parse table BinaryReader inFile        byte   idstring   inFile ReadBytes 6       Console WriteLine Convert ToString idstring        It is a simple snippet  read the first 6 bytes of the file and convert that to a string   However the console shows System Byte     Maybe I m using the wrong class for conversion  What should I be using  It will eventually be parsing filenames encoded in UTF-8  and I m planning to use the same method to read all filenames

User · Accepted Answer

It s actually       Console WriteLine Encoding Default GetString value      or for UTF-8 specifically       Console WriteLine Encoding UTF8 GetString value

User · Answer

I was in a predicament where I had a signed byte array  sbyte    as input to a Test class and I wanted to replace it with a normal byte array  byte    for simplicity  I arrived here from a Google search but Tom s answer wasn t useful to me   I wrote a helper method to print out the initializer of a given byte     public void PrintByteArray byte   bytes        var sb   new StringBuilder  new byte             foreach  var b in bytes                sb Append b                    sb Append           Console WriteLine sb ToString         You can use it like this   var signedBytes   new sbyte     1  2  3  -1  -2  -3  127  -128  0     var unsignedBytes   UnsignedBytesFromSignedBytes signedBytes   PrintByteArray unsignedBytes      output     new byte     1  2  3  255  254  253  127  128  0      The ouput is valid C  which can then just be copied into your code   And just for completeness  here is the UnsignedBytesFromSignedBytes method      http   stackoverflow com a 829994 346561 public static byte   UnsignedBytesFromSignedBytes sbyte   signed        var unsigned   new byte signed Length       Buffer BlockCopy signed  0  unsigned  0  signed Length       return unsigned

User · Answer

I ve used this simple code in my codebase   static public string ToReadableByteArray byte   bytes        return string Join       bytes       To use   Console WriteLine ToReadableByteArray bytes

User · Answer

For some fun with linq and string interpolation   public string ByteArrayToString byte   bytes        if   bytes    null   return  null       string joinedBytes   string Join       bytes Select b   gt  b ToString          return   new byte       joinedBytes           Test cases   byte   bytes     1  2  3  4    ByteArrayToString  bytes    Dump    ByteArrayToString null  Dump    ByteArrayToString new byte         Dump      Output   new byte     1  2  3  4   null new byte

User · Answer

byte   bytes     1 2 3 4      string stringByte  BitConverter ToString bytes     Console WriteLine stringByte

User · Answer

This is just an updated version of Jesse Webbs code that doesn t append the unnecessary trailing   character   public static string PrintBytes this byte   byteArray        var sb   new StringBuilder  new byte             for var i   0  i  lt  byteArray Length i                  var b   byteArray i           sb Append b           if  i  lt  byteArray Length -1                        sb Append                            sb Append            return sb ToString        The output from this method would be   new byte     48      135  31  178  7  157

[c#] C#: Converting byte array to string and printing out to console

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