C# Discussion Boards - CodeProject

6-May-13 19:44

I'm supposed to write a very simple program to display, "A, B, C (and a sentence I forgot already)".
The catch is, we're supposed to use the Unicode instead of the string literals for A, B, C.
I know the Unicode for the A character, the book I'm reading uses its Unicode as an example.

I went backwards and forwards in my book a few chapters, nowhere in it does it explain or give an example on how it got that Unicode for the capital letter A.

I new how to display the data type of a variable with:
<pre lang="c#">
Console.WriteLine(x.GetType);
</pre>
Is there a similar enumeration to find the Unicode?

(Did I use enumeration in the right context here? Trying to learn the lingo as I go.)

Richard MacCutchan6-May-13 20:51

6-May-13 20:51

If you know the Unicode value for "A", then you can work out the rest quite easily; just by adding 1 to the value for each successive letter up to "Z". And if you need the value for any of the less common characters then the Windows Character Map application will show them to you.

Use the best guess

N8tiv6-May-13 21:00

6-May-13 21:00

I thought about that… But, because I'm in the beginning stages of learning C#

I wanted to be sure, instead of just jumping right in.

Thanks.

PS-it would be nice to know how to convert a literal character to Unicode programmatically.

<a href="http://www.widmarkrob.com">My Coding Journey</a>

Richard MacCutchan6-May-13 21:26

6-May-13 21:26

WidmarkRob wrote:
it would be nice to know how to convert a literal character to Unicode programmatically.

A literal character in C# is already a Unicode value, you just need to use a cast to get that value. For example:

char strCharacter = 'Q';              // a single character
Console.WriteLine(strCharacter);      // display it
int value = (int)strCharacter;        // get its numeric value
Console.WriteLine(value);             // print the value in decimal
Console.WriteLine("{0:X}", value);    // and in hexadecimal

Use the best guess

N8tiv6-May-13 21:38

6-May-13 21:38

Okay, I'm missing something somewhere…

<pre lang="c#">
Console.WriteLine("\u0041");
</pre>
That Prints out to the Console Window:
A

LOL, when I change 41 into 82 it gave me the:
?

<a href="http://www.widmarkrob.com">My Coding Journey</a>

Richard MacCutchan6-May-13 22:04

6-May-13 22:04

That is correct x82 is a non-printable character; see this Wikipedia page[^].

Use the best guess

N8tiv6-May-13 22:21

6-May-13 22:21

\u0041

what does that exactly mean?
"\u0041"

Unsigned?
Some sort of unsigned datatype?

I'm learning, I haven't learned that much yet.
I have a book on C# that I'm reading.
Whenever they try to explain something, it doesn't always think in… So, I do a Google search to try to find answers.
There must be a specific enumeration of the type char that I'm missing somewhere.
Or, Method… Is a better word than enumeration?

<a href="http://www.widmarkrob.com">My Coding Journey</a>

Richard MacCutchan6-May-13 22:28

How to convert unix time to datetime (C#) ?

6-May-13 22:28

WidmarkRob wrote:
what does that exactly mean?
"\u0041"

This is merely a way of representing a Unicode character by its hexadecimal value. If you look at the Windows Character Map application it shows you the hexadecimal value for each Unicode character. You can also see similar values for the ASCII character set. It may be that you need to get hold of a reference book that explains how data is held and represented in digital computers, and how it can be converted from one type to another. More information can also be found at http://www.unicode.org/faq/utf_bom.html[^].

Use the best guess

Vijay Kanda6-May-13 19:35

Vijay Kanda

6-May-13 19:35

Is there any built in method (.Net C#) to convert the unix time (double datatype) to datetime?

I got the following code from Stackoverflow :

public static DateTime UnixTimeStampToDateTime( double unixTimeStamp )
{
// Unix timestamp is seconds past epoch
System.DateTime dtDateTime = new DateTime(1970,1,1,0,0,0,0);
dtDateTime = dtDateTime.AddSeconds( unixTimeStamp ).ToLocalTime();
return dtDateTime;
}

But it's not working properly. The above method returns 1970-01-01 00:00:00 as result.

Thanks.

here is the Stackoverflow link:

http://stackoverflow.com/questions/249760/how-to-convert-unix-timestamp-to-datetime-and-vice-versa[^]

Re: How to convert unix time to datetime (C#) ?

Richard MacCutchan6-May-13 20:42