Program to remove the duplicate character from the string

In this program, we will learn How to remove the duplicate character from the string in C#.

I will recommend you to check the below link for Top C# Interview Programs asked during the Interview and Examination.

Top C# Program for Interview

Program to remove the duplicate character from the string

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 characters and small alphabetical characters will be treated as different characters.

Program to remove the duplicate character from the string in C# in mentioned below:

Console.WriteLine("Enter a string to remove duplicate character from it:"); //Receive input from the user string inputString = Console.ReadLine(); //Converting the inputString to lowercase //other wise Uppercase and lowercase will be considered as difference character inputString = inputString.ToLower(); //result for holding the distinct characters string result = string.Empty; //Loop through each character of the string for (int i = 0; i < inputString.Length; i++) {     //If character is not added (contains) in the result variable, Add it to the result string     if (!result.Contains(inputString[i]))     {         result += inputString[i];     } } //Show the final result to the user Console.WriteLine(result); //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