C#: Create a new string of every other character from the first position of a given string

Last update on June 23 2025 12:59:31 (UTC/GMT +8 hours)

Every Other Character in String

Write a C# program to create a string of every other character (odd position) from the first position of a given string.

Pictorial Presentation:

>C# Sharp Exercises: Create a new string of every other character from the first position of a given string

Sample Solution:-

C# Sharp Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public class Exercise44 {
    static void Main(string[] args) {
        // Prompt the user to input a string
        Console.Write("Input a string : ");

        // Read the input string and store it in the variable 'str'
        string str = Console.ReadLine();

        // Initialize an empty string variable 'result' to store the characters at even indices
        var result = string.Empty;

        // Iterate through the characters of the input string using a for loop
        for (var i = 0; i < str.Length; i++) {
            // Check if the index 'i' is even (i.e., divisible by 2 without remainder)
            // If the index is even, add the character at index 'i' to the 'result' string
            if (i % 2 == 0)
                result += str[i];
        }

        // Output the 'result' string containing characters at even indices from the input string
        Console.WriteLine(result);
    }
}

Sample Output:

Input a string : w3resource                                            
wrsuc

Flowchart:

For more Practice: Solve these Related Problems:

Write a C# program to build a string using every third character from the original string.
Write a C# program to form a new string using only consonants at even indices.
Write a C# program to take every second character from a string starting from the second position.
Write a C# program to count how many characters in odd positions are vowels.

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