Converting string to ascii and ascii to string

Question

I am giving the input to console program as "Hai My Name is KrishNA" and that string is converted in to ascii characters and I'm getting output as 543777096. I want If I give the same number as input I want the same output as above in the same program and for space the ascii value is 32 i want to skip that space.I wrote the c# program Below

string s1;
s1 = Console.ReadLine();

byte[] bytes = Encoding.ASCII.GetBytes(s1);
int result = BitConverter.ToInt32(bytes, 0);
//foreach (int r in bytes)
//{
Console.Write(result);

//}
//byte[] array = new byte[result];


byte[] buffer = System.Text.Encoding.UTF8.GetBytes(s1);

foreach (int a in buffer)
{
    Console.WriteLine(buffer);
}

please help me on this

So you get the first 4 bytes of the characters ("Hai "), drop the rest and convert it into a 32 bit integer. What did you expect? — György Kőszeg
– György Kőszeg, Commented Jun 27, 2016 at 10:56

Boris Sokolov · Accepted Answer · 2016-06-27 10:52:48Z

1

Try this one

string s1;
s1 = Console.ReadLine();

byte[] bytes = Encoding.ASCII.GetBytes(s1);
int result = BitConverter.ToInt32(bytes, 0);
Console.WriteLine(result);

String decoded = Encoding.ASCII.GetString(bytes);
Console.WriteLine("Decoded string: '{0}'", decoded);

answered Jun 27, 2016 at 10:52

Boris Sokolov

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Comments

Nam Tran · Accepted Answer · 2016-06-27 10:57:06Z

0

You can not convert a string to single 32 bit integer number, in your program, the number 543777096 represents "Hai " (include space), so you can not convert that number back to the first string. Use loop to convert each 4 characters to Int32 number, so your string should be represented by an array of Int32 number.

answered Jun 27, 2016 at 10:57

Nam Tran

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Comments

György Kőszeg · Accepted Answer · 2016-06-27 11:14:22Z

0

It is completely unclear what are you use the int result for.

If you want to print the numbers to the console (or into a text file) use a string instead.

byte[] bytes = Encoding.ASCII.GetBytes(s1);
string result = bytes.Aggregate("", (acc, b) => (acc.Length == 0 ? "" : acc + ", ") + b.ToString());
Console.WriteLine(result);

// prints 72, 97, 105, 32, 98, 108, 97, 98, 108, 97 for "Hai blabla"

If you want to leave the spaces out, you can filter the bytes:

result = bytes
         .Where(b => b != 32)
         .Aggregate("", (acc, b) => (acc.Length == 0 ? "" : acc + ", ") + b.ToString());

For longer input texts you should use a StringBuilder instead.

answered Jun 27, 2016 at 11:14

György Kőszeg

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