﻿ C# - Swap the first and last elements of an array

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

## C# Sharp Basic Algorithm: Exercise-105 with Solution

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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