Write function in c# to remove duplicates characters from string ?

Ajit More

6.5k

Question 1) Write function in c# to remove duplicates characters from string ?
like:-
a) “morningstar”—-> “mornigsta”
b) “google”——> “gole”
c) “Google”——> “Gogle”

Answer:-

class Program
{
 static void Main(string[] args)
 {
 string myStr = "morningstar";
 Console.WriteLine("Initial String: " + myStr);
 var unique = new HashSet<char>(myStr);
 var Myfinalstring = "";
 foreach (char c in unique)
 {
 Myfinalstring = Myfinalstring + c;
 }
 Console.WriteLine("New String after removing duplicates: " + Myfinalstring);
 Console.ReadKey();
 }
}

public static void RemoveDuplicate(string str)
{
string final = string.Empty;

 for (int i = 0; i < str.Length; i++)
 {
 if(!final.Contains(str[i]))
 {
 final += str[i];
 }
 }
 Console.WriteLine("The value after remove duplicate value is : " + final);
 }

Sahariar Hussain

public static string RemoveDuplicatedCharacters(string s)
{
char[] chars = s.ToArray();

 var dist = chars.Distinct().ToArray();
 return new string(dist);
 }

Imogen Harden