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How to clone an Array in C#

Surabhi Sharma

The Array class in the System namespace provides the Clone() method, which can be used to do a shallow copy of the array elements.

Syntax

public object Clone ();
  • This method performs a shallow copy of the array elements. If the array contains object references, those references are copied, but the actual objects that the references refer to are not.
  • The cloned array is of the type of the original array.
  • The time complexity of this method is O(n), where n is the number of elements in the array.

In the below code, we have created and initialized an integer array. We first print the original array and then perfrom a shallow copy of the array using the Array.Clone() method.

After that, we print the cloned array contents.

The program prints the below output and exits.

Original Array : 10,13,15,18,23
Cloned Array : 10,13,15,18,23
using System;

class ArrayClone
{
    static void Main()
    {
      int[] numArray = {10,13,15,18,23};
      Console.WriteLine("Original Array : {0}", string.Join(",",numArray));
      int[] clonedNumArray = (int[])numArray.Clone();
      Console.WriteLine("Cloned Array : {0}", string.Join(",",clonedNumArray));
    }
}

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