count number of 'this'

chethan kl

12y1.1k.NET

hi friends,

please how to find the count of string variable

for example in a line i am consists word 'this' four times.
if i sear for this word then it should 4,

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Abhay Shanker12y ago
using System;
using System.Linq;
namespace StringCount
{
    class Program
    {
        static void Main(string[] args)
        {
            string text = "This is a pen.This is a cat.This is a room.This is an elephant.You say this ";
            string searchTerm = "this";
            string[] source = text.Split(new char[] { '.' ,' ' }, StringSplitOptions.RemoveEmptyEntries);
            var matchQuery = from word in source
                             where word.ToLowerInvariant() == searchTerm.ToLowerInvariant()
                             select word;
            // Count the matches, which executes the query.
            int wordCount = matchQuery.Count();
            Console.WriteLine("{0} occurrences(s) of the search term \"{1}\" were found.", wordCount, searchTerm);
            // Keep console window open in debug mode
            Console.WriteLine("Press any key to exit");
            Console.ReadKey();

        }
    }
}
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Vulpes12y ago
The easiest way is to use regular expressions:

using System;
using System.Text.RegularExpressions;

class Test
{
static void Main()
{
string line = "This is a line, this is this line and so is this";
string search = "this";
string regExp = @"\b" + search + @"\b";
MatchCollection mc = Regex.Matches(line, regExp, RegexOptions.IgnoreCase);
Console.WriteLine("The word '{0}' occurs {1} time(s)", search, mc.Count);
Console.ReadKey();
}
}

The output is:

The word 'this' occurs 4 time(s)

Note that case is ignored here so 'This' and 'this' are both counted.

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