Best way to check number of occurrences in an int array?

Question

Hi I have an int array which looks like this: 35611137 How do you usually count how many occurrences of each number exists?

Suthish Nair · Answer

ok.. like this.. int[] i = { 3 5 6 1 1 1 3 7 }; var outval = from ii in i group ii by ii into iiGroup select new { iiGroup iiCount = iiGroup.Count() }; foreach (var item in outval) { Console.WriteLine(item.iiGroup.Key +  -  + item.iiCount); } Console.ReadLine();

Tomas Westerlund · Answer

Hi Yepp that is a better way for me! Thanks!

Suthish Nair · Answer

thread resolved?

Tomas Westerlund · Answer

The thing is I need to know how many numbers there are of each kind (how many 1's 2's etc.) and I can still create a loop for it but isn't there a better way without creating 2 loops as I do want to work with the array?

Suthish Nair · Answer

You can do a for loop and check the count.. or something like this will help.. int[] i = { 3 5 6 1 1 1 3 7 }; var outval = from ii in i where ii == 3 select ii ; Console.WriteLine(outval.Count()); Console.ReadLine();