How to check if Two Arrays are Equal in C# - Step by Step Examples



How to check if Two Arrays are Equal in C# ?

Answer

To check if two arrays are equal in C#, you can use the SequenceEqual method for arrays with the same elements and manually compare elements for arrays with different elements.



✐ Examples

1 Arrays with Same Elements

In this example,

  1. We create two arrays named arr1 and arr2 with the same elements.
  2. We then use the SequenceEqual method to check if the arrays are equal and store the result in the variable equal1.
  3. The SequenceEqual method compares two sequences and returns true if they are equal; otherwise, false.
  4. Finally, we print the value of equal1 to the console.

C# Program

using System;
using System.Linq;
class Program
{
    static void Main()
    {
        int[] arr1 = { 1, 2, 3 };
        int[] arr2 = { 1, 2, 3 };
        bool equal1 = arr1.SequenceEqual(arr2);
        Console.WriteLine("Arrays are equal: " + equal1);
    }
}

Output

Arrays are equal: True

2 Arrays with Different Elements

In this example,

  1. We create two arrays named arr3 and arr4 with different elements.
  2. We then manually compare each element of both arrays and store the result in the variable equal2.
  3. If all elements are equal, equal2 is set to true; otherwise, it's set to false.
  4. Finally, we print the value of equal2 to the console.

C# Program

using System;
class Program
{
    static void Main()
    {
        int[] arr3 = { 1, 2, 3 };
        int[] arr4 = { 3, 2, 1 };
        bool equal2 = true;
        for (int i = 0; i < arr3.Length; i++)
        {
            if (arr3[i] != arr4[i])
            {
                equal2 = false;
                break;
            }
        }
        Console.WriteLine("Arrays are equal: " + equal2);
    }
}

Output

Arrays are equal: False

Summary

In this tutorial, we learned How to check if Two Arrays are Equal in C# language with well detailed examples.




More C# Arrays Tutorials

  1. How to Declare an Array in C# ?
  2. How to Initialize an Array in C# ?
  3. How to Access Array Elements in C# ?
  4. How to Access Array Elements using Index in C# ?
  5. How to get First Element in Array in C# ?
  6. How to get Last Element in Array in C# ?
  7. How to check if an Array is Empty in C# ?
  8. How to check if an Array is Not Empty in C# ?
  9. How to get Sub Array in C# ?
  10. How to Get Array Length in C# ?
  11. How to Iterate Over an Array in C# ?
  12. How to Iterate Over an Array in Reverse Order in C# ?
  13. How to get the Index of Specified Element in an Array in C# ?
  14. How to check if Specified Element is present in the Array in C# ?
  15. How to count the Number of Occurrences of Specified Element in the Array in C# ?
  16. How to Sort an Array in C# ?
  17. How to Sort an Array in Ascending Order in C# ?
  18. How to Sort an Array in Descending Order in C# ?
  19. How to create a Two Dimensional Array in C# ?
  20. How to Iterate over a Two Dimensional Array in C# ?
  21. How to create a Three Dimensional Array in C# ?
  22. How to Copy an Array in C# ?
  23. How to Split an Array in C# ?
  24. How to Join Arrays in C# ?
  25. How to check if Two Arrays are Equal in C# ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in C# ?
  27. How to Convert an Array of Integers to an Array of Strings in C# ?
  28. How to Convert an Array of Strings to an Array of Integers in C# ?
  29. How to Reverse an Array in C# ?
  30. How to Shuffle an Array in C# ?
  31. How to Rotate Elements in an Array in C# ?
  32. How to Filter Elements of an Array based on a Condition in C# ?
  33. How to Declare an Integer Array in C# ?
  34. How to Declare a Float Array in C# ?
  35. How to Declare a String Array in C# ?
  36. How to Remove Duplicates in an Array in C# ?
  37. How to Remove Specific Element from an Array in C# ?
  38. How to Remove Element from Array based on a Condition in C# ?
  39. How to Sort a String Array in Dictionary Order in C# ?
  40. How to Concatenate Strings in Array in C# ?