C#: Create a new array swapping the first and last elements of a given array of integers and length will be least 1

Last update on December 20 2024 12:47:01 (UTC/GMT +8 hours)

Swap First and Last Array Elements

Write a C# Sharp program to create an array by swapping the first and last elements of a given array of integers with a length of at least 1.

Visual Presentation:

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
        {          
            // Calling the 'test' method with an integer array as an argument and assigning the result to the 'item' array
            int[] item = test(new[] { 1, 5, 7, 9, 11, 13 }); 

            // Outputting text to indicate the start of displaying the result after swapping
            Console.Write("After swapping first and last elements: ");         

            // Looping through each element of the 'item' array and displaying them
            foreach(var i in item)
            {
               Console.Write(i.ToString()+" "); // Displaying each element of the 'item' array separated by a space
            }               
        }        

        // Method to swap the first and last elements of the input array
        static int[] test(int[] numbers)
        {
            int first = numbers[0]; // Storing the value of the first element in a temporary variable
            numbers[0] = numbers[numbers.Length - 1]; // Assigning the value of the last element to the first element
            numbers[numbers.Length - 1] = first; // Assigning the value of the temporary variable to the last element

            return numbers; // Returning the modified array
        } 
    }
}

Sample Output:

After swapping first and last elements: 13 5 7 9 11 1

Flowchart:

C# Sharp Code Editor:

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