Reverse a string (without built-in reverse)?

Logic

• Convert to char array.
• Swap characters from both ends.

string str = "dotnet";
char[] chars = str.ToCharArray();
int left = 0, right = chars.Length - 1;

while (left < right)

{
char temp = chars[left];
chars[left] = chars[right];
chars[right] = temp;

left++;

right--;

}
string reversed = new string(chars);