How to sort an array in C#

 

Sorting arrays is a common task in programming and can be done easily in C# using different methods. In C#, you can sort an array by using the Array.Sort method, the Linq method OrderBy, or by writing your own sorting algorithm.

Using Array.Sort :

Here's an example of how you can use the Array.Sort method to sort an array in ascending order:

using System;

namespace ArraySort

{

    class Program

    {

        static void Main(string[] args)

        {

            int[] numbers = { 3, 5, 1, 4, 2 };

            Array.Sort(numbers);

            Console.WriteLine("Sorted array in ascending order:");

            foreach (int number in numbers)

            {

                Console.WriteLine(number);

            }

        }

    }

}

In this example, we declared an array of integers named numbers and assigned some values to it. We then used the Array.Sort method to sort the numbers array in ascending order. Finally, we used a foreach loop to print the sorted array on the console.

Using Linq method OrderBy :

Here's another example that demonstrates how you can use the Linq method OrderBy to sort an array:

using System;

using System.Linq;

namespace ArraySort

{

    class Program

    {

        static void Main(string[] args)

        {

            int[] numbers = { 3, 5, 1, 4, 2 };

            var sortedNumbers = numbers.OrderBy(n => n);

            Console.WriteLine("Sorted array in ascending order:");

            foreach (int number in sortedNumbers)

            {

                Console.WriteLine(number);

            }

        }

    }

}

In this example, we declared an array of integers named numbers and assigned some values to it. We then used the Linq method OrderBy to sort the numbers array in ascending order. The OrderBy method returns an ordered IEnumerable that we stored in the sortedNumbers variable. Finally, we used a foreach loop to print the sorted array on the console.

Using Loops :

Finally, here's an example of how you can write your own sorting algorithm to sort an array in C#:

using System;

namespace ArraySort

{

    class Program

    {

        static void Main(string[] args)

        {

            int[] numbers = { 3, 5, 1, 4, 2 };

            for (int i = 0; i < numbers.Length - 1; i++)

            {

                for (int j = i + 1; j < numbers.Length; j++)

                {

                    if (numbers[j] < numbers[i])

                    {

                        int temp = numbers[i];

                        numbers[i] = numbers[j];

                        numbers[j] = temp;

                    }

                }

            }

            Console.WriteLine("Sorted array in ascending order:");

            foreach (int number in numbers)

            {

                Console.WriteLine(number);

            }

        }

    }

}

In this example, we declared an array of integers named numbers and assigned some values to it. We then wrote two nested for loops to implement a bubble sort algorithm to sort the numbers array. The outer loop iterates through the elements of the numbers array and the inner loop compares the current element with the next element. If the current element is greater than the next element, they are swapped. This process is repeated until the numbers array is sorted in ascending order. Finally, we used a foreach loop to print the sorted array on the console.

In conclusion, there are multiple ways to sort an array in C#, including using the Array.Sort method, the Linq method OrderBy, or by writing your own sorting algorithm. Choose the method that best fits your needs and requirements, but keep in mind that the Array.Sort method and the Linq method OrderBy are much faster and more efficient than writing your own sorting algorithm.