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find the occurance of characters in a string using c#

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Visual Basic .NET

find the occurance of characters in a string using c#

Vishal Dusane

9yAsked Apr 21, 2017, 5:26 AM1.1kVisual Basic .NET

suppose I have the string like
string str="VAARONASSTGSO";

if the same character are appears in sequence then consider their count at once,in above string AA appears in sequence then consider their count at one.

V=1
A=3
R=1
O=2
N=1
S=2
T=1
G=1

3 Replies

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Tapan Patel9y ago
1. //using Lambda
2. string str = "ABCCCDDDEFGGEEDTFF";
3. var charcount = str.GroupBy(x => x).Select(t =>new { _char= t.Key, _charCount= t.Count()});
4. charcount.ToList().ForEach(x => Console.WriteLine($"{x._char}-{x._charCount}"));

Vishal Dusane9y ago

but AA present in sequence so we have to consider their count at one

Manas Mohapatra9y ago

Follow below link that may help you:

http://www.c-sharpcorner.com/blogs/find-the-number-of-occurrences-of-a-character-in-a-string-using-c-sharp122

string input = "VAARONASSTGSO";
while (input.Length > 0)
{
var count = input.Count(x => x == input[0]);
Console.Write(input[0] + " = " + count);
input = input.Replace(input[0].ToString(),string.Empty);
}
Console.ReadLine();