C#: Create a new array taking the first two elements from a given array

C# Sharp Basic Algorithm: Exercise-108 with Solution

Write a C# Sharp program to create an array by taking the first two elements from an array. If the given array length is shorter than 2, return the given array.

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

            // Outputting text to indicate the start of displaying the new array
            Console.Write("New array: ");         

            // 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 create and return a new array containing the first one or two elements of the input array
        static int[] test(int[] numbers)
        {
            int[] front_nums; // Declaring an array to store the first one or two elements

            // Checking the length of the input array to determine the elements to be included in the new array
            if (numbers.Length >= 2)
            {
                front_nums = new int[] { numbers[0], numbers[1] }; // Creating an array with the first two elements
            }
            else if (numbers.Length > 0)
            {
                front_nums = new int[] { numbers[0] }; // Creating an array with the only available element
            }
            else
            {
                front_nums = new int[0]; // Creating an empty array if there are no elements in the input array
            }

            return front_nums; // Returning the new array containing the selected elements
        }
   }
}

Sample Output:

New array: 1 5

Flowchart:

C# Sharp Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a C# Sharp program to find the largest value from first, last, and middle elements of a given array of integers of odd length (atleast 1).
Next: Write a C# Sharp program to count even number of elements in a given array of integers.