CODEWITHSUNDEEP
c#arrays
Giliweed
Giliweed

Reputation: 5177

How to split byte array

its a simple code to split a byte array and see how it works. But the problem is I get weird outputs. 

    public static void SplitArayUsingLinq()

    {
        int i = 3;
        string data = "123456789";
        byte[] largeBytes = Encoding .Unicode .GetBytes (data);
        byte[] first = largeBytes.Take(i).ToArray();
        byte[] second = largeBytes.Skip(i).ToArray();
        string firststring = Encoding.Unicode .GetString (first);
        string secondstring = Encoding.Unicode.GetString(second);
        Console.WriteLine(" first : " +firststring);
        Console.WriteLine(" second : " +secondstring);

    }

when the value of i=3 I get this:

enter image description here

and when the value of i=4 I get this:

enter image description here

In both cases I get weird outputs. It seems that whatever the value of i is given, the program seems to consider its half. Can anyone tell me why is it happening? exactly where is the problem?

Upvotes: 1

Views: 481

Answers (2)

Giliweed
Giliweed

Reputation: 5177

I just changed the Unicode to UTF8 and the problem is solved. Thanks everyone who answered and commented.

UPDATE:

the correct code is : 

    public static void SplitArayUsingLinq()

    {
        int i = 3;
        string data = "123456789";
        byte[] largeBytes = Encoding.UTF8.GetBytes (data);
        byte[] first = largeBytes.Take(i).ToArray();
        byte[] second = largeBytes.Skip(i).ToArray();
        string firststring = Encoding.UTF8.GetString (first);
        string secondstring = Encoding.UTF8.GetString(second);
        Console.WriteLine(" first : " +firststring);
        Console.WriteLine(" second : " +secondstring);

    }

Upvotes: 0

Scott Chamberlain
Scott Chamberlain

Reputation: 127543

Unicode uses two bytes per character, so only even values of i will work and it will take half the number of letters. If you just want to split a string doing String.SubString will be a lot easier.

int i = 3;
string data = "123456789";
string firststring = data.SubString(0,i);
string secondstring = data.SubString(i+1);

Console.WriteLine(" first : " +firststring);
Console.WriteLine(" second : " +secondstring);

Upvotes: 4

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