Is it possible to convert a HEX string to an integer array?
// This string...
string a = "8FCC44";
// Should look like this:
int[] b = {0x8f,0xcc,0x44};
But I don't have any idea how to do this.
I found this question, but i can't understand the answer. I am new to C#, so it would be nice if anybody could give me an example.
Thanks in advance!
int[] ConvertToIntArray(string a)
{
List<int> x = new List<int>();
for(int i=0; i<a.Length-1; i+=2)
x.Add(int.Parse(a.Substring(i, 2), System.Globalization.NumberStyles.HexNumber));
return x.ToArray();
}
You can then print them as Hex or Decimal using ToString() overloads of int (Int32) class.
x.Add(int.Parse(a.Substring(i, 2), NumberStyles.HexNumber));? I don't think using 16 will compile because int.parse doesn't have the equivalent overload to take an integer. You can use 16 if you're using Convert.ToInt().
Another way:
var a = "8fcc44";
var b = Enumerable.Range(0, a.Length / 2).Select(x =>
Convert.ToInt32(a.Substring(x * 2, 2), 16)).ToArray();
The answer focuses on Java, but it is also possible to do this in C# in a similar way. Basicly you have to divide the string into substrings, each 2 characters long:
"8FCC44" -> "8F", "CC", "44"
You can do this using a for loop:
for (int i = 0; i < a.Length; i += 2)
The loop variable i represents the start index of the current substring, this is why it always increases by 2. We can convert each substring using Int32.Parse:
Convert.ToInt32(a.Substring(i, 2), 16);
The last parameter represents the base of the source string (HEX = base 16).
Now we need an array to store the results. The size of the array can be calculated by the length of the string, divided by the length of each substring (= 2):
int[] b = new int[a.Length / 2];
To bring it all together your code could look like this:
string a = "8FCC44";
int[] b = new int[a.Length / 2];
for (int i = 0, int j = 0; i < a.Length; i += 2, j++)
b[j] = Convert.ToInt32(a.Substring(i, 2), 16);
Hope this helps!
static void Main(string[] args)
{
string a = "8fcc44";
int itemNumber = 0;
int[] iArray = new int[3];
for (int i = 0; i < a.Length - 1; i += 2)
{
iArray[itemNumber] = (int.Parse(a.Substring(i, 2), System.Globalization.NumberStyles.HexNumber));
itemNumber++;
}
}
a.Batch(2).Select(r => int.Parse(new string(r.ToArray()), NumberStyles.HexNumber))