C#: Create a new array using the first n strings from a given array of strings

C# Sharp Basic Algorithm: Exercise-137 with Solution

First n Strings from String Array

Write a C# Sharp program to create an array using the first n strings from a given array of strings. (n>=1 and <=length of the array)

Visual Presentation:

Sample Solution:

C# Sharp Code:

using System; // Importing the System namespace for basic functionality
using System.Collections; // Importing collections for non-generic interfaces
using System.Collections.Generic; // Importing collections for generic interfaces
using System.Linq; // Importing LINQ for querying collections
using System.Text; // Importing classes for handling strings
using System.Threading.Tasks; // Importing classes for handling asynchronous tasks

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
        {               
            // Declaring and initializing a string array 'item' using the 'test' method
            string[] item = test(new[] {"a", "b", "bb", "c", "ccc" }, 3);

            // Displaying a message to indicate the new array elements
            Console.Write("New array: ");

            // Iterating through each element in the 'item' array and displaying it
            foreach(var i in item)
            {
                Console.Write(i.ToString() + " ");
            }
        }        

        // Method to create a new array with the first 'n' elements from the input array
        static string[] test(string[] arr_str, int n)
        {
            string[] new_array = new string[n]; // Initializing a new string array of size 'n'

            // Copying the first 'n' elements from the input array to the new array
            for (int i = 0; i < n; i++)
            {
                new_array[i] = arr_str[i];
            }

            return new_array; // Returning the new array containing the first 'n' elements
        }
    } 
}

Sample Output:

New array: a b bb

Flowchart:

C# Sharp Code Editor:

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