How to check if two Strings are anagrams of each other using C#?

Under anagram, another string would have the same characters present in the first string, but the order of characters can be different.

Here, we are checking the following two strings −

string str1 = "silent";
string str2 = "listen";

Convert both the strings into character array −

char[] ch1 = str1.ToLower().ToCharArray();
char[] ch2 = str2.ToLower().ToCharArray();

Now, sort them −

Array.Sort(ch1);
Array.Sort(ch2);

After sorting, convert them to strings −

string val1 = new string(ch1);
string val2 = new string(ch2);

Compare both the strings for equality. If both are equal, that would mean they are anagrams.

The following is the code −

Example

 Live Demo

using System;

public class Demo {
   public static void Main () {
      string str1 = "silent";
      string str2 = "listen";
      char[] ch1 = str1.ToLower().ToCharArray();
      char[] ch2 = str2.ToLower().ToCharArray();
      Array.Sort(ch1);
      Array.Sort(ch2);
      string val1 = new string(ch1);
      string val2 = new string(ch2);

      if (val1 == val2) {
         Console.WriteLine("Both the strings are Anagrams");
      } else {
         Console.WriteLine("Both the strings are not Anagrams");
      }
   }
}

Output

Both the strings are Anagrams