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C# program to count occurrences of a word in string
Set the string first −
string str = "Hello World! Hello!";
Now check the string for the occurrences of a word “Hello’ and loop through −
while ((a = str1.IndexOf(pattern, a)) != -1) { a += pattern.Length; count++; }
Example
You can try to run the following code to count occurrences of a word in a string.
using System; class Program { static void Main() { string str = "Hello World! Hello!"; Console.WriteLine("Occurrence:"+Check.CheckOccurrences(str, "Hello")); } } public static class Check { public static int CheckOccurrences(string str1, string pattern) { int count = 0; int a = 0; while ((a = str1.IndexOf(pattern, a)) != -1) { a += pattern.Length; count++; } return count; } }
Output
Occurrence:2
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