C#: Create a new string from a specified string

Last update on June 27 2025 13:06:27 (UTC/GMT +8 hours)

Remove First Two if Start and End Match

Write a C# Sharp program to create a new string from a string. In the case that the two characters at the beginning and end of the given string are the same, return the given string without the first two characters, otherwise return the original string.

Visual Presentation:

C# Sharp: Basic Algorithm Exercises - Create a new string from a specified string.

Sample Solution:-

C# Sharp Code:

using System; // Importing the System namespace

namespace exercises // Defining a namespace called 'exercises'
{
    class Program // Defining a class named 'Program'
    {
        static void Main(string[] args) // The entry point of the program
        {
            // Output the results of the test function with different strings as arguments
            Console.WriteLine(test("abcab")); // Pass "abcab" to the test function and display the result
            Console.WriteLine(test("Python")); // Pass "Python" to the test function and display the result
            Console.ReadLine(); // Wait for user input before closing the console window
        }

        // Function definition of the test function that takes a string 's1' as input and returns a string
        public static string test(string s1)
        {
            if (s1.Length > 1 && s1.Substring(0, 2) == s1.Substring(s1.Length - 2))
            {
                // If the length of 's1' is greater than 1 and the first two characters are the same as the last two characters
                return s1.Substring(2); // Return 's1' starting from the third character
            }
            else
            {
                return s1; // Otherwise, return the input 's1' unchanged
            }
        }
    }
}

Sample Output:

cab
Python

Flowchart:

Go to:

PREV : Three Copies of First Two Characters.
NEXT :Remove First Two Except 'p' and 'y'.

C# Sharp Code Editor:

Improve this sample solution and post your code through Disqus