Sort Array In C# Without Using Inbuilt Function

In this blog, we will learn to sort an array in C# without using an inbuilt C# function. We will learn ascending order and descending order an array with a simple example.

In this blog, we will learn to sort an array in C# without using an inbuilt C# function. We will learn ascending order and descending order array with a simple example.

 

 

Example 1 - Sort an array in ascending order without using inbuilt C# function

 

We will create a simple one integer array having values 2,9,4,3,5,1,7 in the array as described in the following example. We will take two for loops; first, a for loop for checking the first position of an array and iterating the length of the array.  The second loop starts with the i+1 position and iterates the length of the array.

using System;

namespace SortArrayExample
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] intArray = new int[] {2,9,4,3,5,1,7 };
            int temp = 0;

            for (int i = 0; i <= intArray.Length-1; i++)
            {
                for (int j = i+1; j < intArray.Length; j++)
                {
                    if (intArray[i] > intArray[j])
                    {
                        temp = intArray[i];
                        intArray[i] = intArray[j];
                        intArray[j] = temp;
                    }
                }
            }
            Console.WriteLine("Array sort in asscending order");
            foreach (var item in intArray)
            {
                Console.WriteLine(item);
            }
            Console.ReadLine();
        }
    }
}

Output

 

 

Example 2

 

Sort an array in descending order without using inbuilt C# function. 

using System;

namespace SortArrayExample
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] intArray = new int[] {2,9,4,3,5,1,7 };
            int temp = 0;

            for (int i = 0; i <= intArray.Length-1; i++)
            {
                for (int j = i+1; j < intArray.Length; j++)
                {
                    if (intArray[i] < intArray[j])
                    {
                        temp = intArray[i];
                        intArray[i] = intArray[j];
                        intArray[j] = temp;
                    }
                }
            }
            Console.WriteLine("Array sort in descending order");
            foreach (var item in intArray)
            {
                Console.WriteLine(item);
            }
            Console.ReadLine();
        }
    }
}

Output

 

 

I hope you understand how to sort an array without using the inbuilt function.