Finding duplicate values in a String in C#.net

Finding Duplicate string values in a String
Method1:

string[] ss ={ "1","1","1"};

List<string> myList = new List<string>();
List<string> duplicates = new List<string>();


foreach (String s in ss) {
   if (!myList.Contains(s)) {
      myList.Add(s);
   } else {
      duplicates.Add(s);
}

// show list without duplicates
foreach (String s in myList) {
   Console.WriteLine(s);
}

// show duplicates list
foreach (String s in duplicates) {
   Console.WriteLine(s);
}
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method2:
int[] s = { 1, 2, 3, 3, 4};
int[] q = s.Distinct().ToArray();