C# program to count the number of occurrences of a word in a string

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Release： 2023-09-06 13:21:07

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C# 程序计算字符串中某个单词的出现次数

First set the string -

string str = "Hello World! Hello!";

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Now check if the word "Hello" appears in the string and loop-

while ((a = str1.IndexOf(pattern, a)) != -1) { a += pattern.Length; count++; }

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Example

You can try running the following code to count the occurrences of a word in a string.

Real-time demonstration

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; } }

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Output

Occurrence:2

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source：tutorialspoint.com

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