C#: Create a new string made of every other character starting with the first from a given string

Last update on June 25 2025 13:04:00 (UTC/GMT +8 hours)

Every Other Character in String

Write a C# Sharp program to create a string made of every other character starting with the first in a given string.

Visual Presentation:

Sample Solution:-

C# Sharp Code:

using System;

// Namespace declaration
namespace exercises
{
    // Class declaration
    class Program
    {
        // Main method - entry point of the program
        static void Main(string[] args)
        {
            // Displaying the output of the 'test' method with different string inputs
            Console.WriteLine(test("Python")); // Output: Pto
            Console.WriteLine(test("PHP"));    // Output: PP
            Console.WriteLine(test("JS"));     // Output: J
            Console.ReadLine(); // Keeping the console window open
        }

        // Method to return a new string containing characters at even indices from the input string
        public static string test(string s)
        {
            var result = string.Empty; // Variable to store the resulting string

            // Loop through the characters of the input string
            for (var i = 0; i < s.Length; i++)
            {
                // Check if the current index 'i' is even
                if (i % 2 == 0)
                {
                    // Append the character at index 'i' to the result string
                    result += s[i];
                }
            }

            return result; // Return the string containing characters at even indices
        }
    }
}

Sample Output:

Pto
PP
J

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C# program to construct a string using every third character starting from the first in a given string.
• Write a C# program to create a new string by skipping one character after every two characters in a string.
• Write a C# program to reverse the given string and extract every other character.
• Write a C# program to create a string using characters at even indices only, excluding vowels.

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• C# Sharp Basic Algorithm Exercises Home ↩
• C# Sharp Programming Exercises Home ↩

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