Program to find the occurrence of the character in a string in C#

In some interviews or exams, a problem is provided to the interviewee or student to find out the occurrence of the character in a string. In this example, I will help you in solving that problem/program with the easiest approach.

Program to find the occurrence of the character in a string

Let’s follow the process shown in the below image. As C# in the case-sensitive language, I am converting the string to the lowercase string so that I can compare the characters otherwise capital character and small alphabetical character will be treated as different characters.

Program to find the occurrence of the character in a string in C# is provided below:

string Statement = ""; Console.WriteLine("Enter a string to find number of Occurrence of a character"); Statement = Console.ReadLine(); //Converting the Statement to lowercase which help in counting of the character in the string //As C# is Case-Sensitive Statement = Statement.ToLower(); //Check the length of string entered by the user if (Statement.Length>0) { //Iterate till length of statement is greater than zero //Here we check each character occurrence //Once count is checked, we will remove that character from the string while (Statement.Length > 0) {     //CountCharacter to store the character occurrence     int CountCharacter = 0;     Console.Write("Number of Occurance of '"+Statement[0] + "': ");     //Checking the Character occurrence in the string entered by the user     for (int i=0;i<Statement.Length;i++)     {         if (Statement[0]==Statement[i])         {             CountCharacter++;         }     }     //Displaying the Count of each character     Console.Write(CountCharacter+"\n");     //Removing that character from the string     Statement = Statement.Replace(Statement[0].ToString(), string.Empty); } } //Console.ReadLine() to hold the screen after the execution of the program Console.ReadLine();

Output:

I hope this example will help in your interview/exam preparation.

Thanks