C#: Create a new string using the two middle characters of a given string of even length

C# Sharp Basic Algorithm: Exercise-71 with Solution

Write a C# Sharp program to create a string using the two middle characters of a given string of even length (at least 2).

Visual Presentation:

Sample Solution:-

C# Sharp Code:

using System; // Import the System namespace which contains fundamental types and base classes

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

        // Function definition of test function that takes a string 's1' and returns a string
        public static string test(string s1)
        {
            // Calculate the starting index for substring as the middle point minus one
            // and retrieve two characters from 's1' using Substring
            // The starting index is determined by dividing the length of 's1' by 2
            // and subtracting 1 to access the character before the middle in the string.
            // The method returns a substring of length 2 starting from that calculated index.
            return s1.Substring(s1.Length / 2 - 1, 2);
        }
    }
}

Sample Output:

el
JS

Flowchart:

C# Sharp Code Editor:

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