C# program to find the index of a word in a string

Declare and initialize an array −

string[] str = new string[] {    "Cat",    "Mat",    "Rat" };

Now, ue IndexOf() method to find the index of the word “Mat” −

Array.IndexOf(str, "Mat");

The following is the code −

Example

 Live Demo

using System; public class Demo {    public static void Main() {       string[] str = new string[] {          "Cat",          "Mat",          "Rat"       };       Console.WriteLine("Our Array =");       for (int i = 0; i < str.Length; i++) {          string res = str[i];          Console.WriteLine(res);       }       int findIndex = Array.IndexOf(str, "Mat");       Console.Write("Element Mat found at the following index: ");       Console.WriteLine(findIndex);    } }

Output

Our Array = Cat Mat Rat Element Mat found at the following index: 1