Remove Duplicate characters from string - C#

Wednesday, 10 November 2010 16:06

flag-stringbuilder-int-string-wordlength

Remove Duplicate characters from string - C#.



public string RemoveDuplicates(string p)

        {

            StringBuilder sb = new StringBuilder();

            char[] word = p.ToCharArray();

            bool flag = false;

            for (int i = 0; i < word.Length; i++)

            {

                flag = false;

                for (int j = (word.Length - 1); j > i; j--)

                {

                    if (word[i] == word[j])

                    {

                        flag = true;

                        break;

                    }

                }

                if (!flag)

                {

                    sb.Append(word[i]);

                }

            }

            return sb.ToString();

        }