extract value from dictionary key

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4.00/5 (1 vote)

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Hello,
How do you extract the key value from the dictionary?

C#

private Dictionary<string, double> g_masses = new Dictionary<string, double>();

          private void PopulateWeightDictionary()
          {
               g_masses.Add("K", 3);
               g_masses.Add("R", 1);
               g_masses.Add("S", 5);
               g_masses.Add("L", 22);
               g_masses.Add("G", 1);

}

Posted 12-Dec-11 6:12am

shekarchee

Updated 12-Dec-11 7:18am

v3

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2 solutions

Solution 2

Try
http://www.dotnetperls.com/count-characters[^]
http://www.dotnetperls.com/string-occurrence[^]

Posted 12-Dec-11 6:29am

Abhinav S

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OriginalGriff · Accepted Answer · 2011-12-12T06:24:00

Personally, I would sort the string and just count the repetitions:

C#

string s = "KRRSLSG";
char[] data = s.ToCharArray();
Array.Sort(data);
char last = '\0';
Dictionary<char, int> counts = new Dictionary<char, int>();
foreach (char c in data)
    {
    if (last == c)
        {
        counts[c]++;
        }
    else
        {
        last = c;
        counts.Add(c, 1);
        }
    }