/// <summary>
/// adds each word to hashmap if not already present; returns first duplicate
/// </summary>
/// <param name="line"> string to search for duplicate </param>
/// <returns> first duplicate found, or 'no repeats found' if none </returns>
public static string RepeatedWord(string line)
{
string[] words = line.Split(new char[] { ' ', ',', '.', ':', ';', '?', '!', '*', '<', '>', '(', ')', '{', '}', '[', ']' });
int idx = 0;
Hashmap map = new Hashmap(1024);
foreach (var word in words)
{
if (word != "")
{
string wordLower = word.ToLower();
idx = map.Hash(wordLower);
if (map.Contains(wordLower, 0))
{
return(wordLower);
}
else
{
map.Add(wordLower, 0);
}
}
}
return("no repeats found");
}
public void Hash_CanReturnIndex(Object key, int idx)
{
Hashmap map = new Hashmap(1024);
Assert.Equal(idx, map.Hash(key));
}
