Question

How to capture index out of range exception in C#?

Answer 1

Answer:

IndexOutOfRangeException occurs when you try to access an element with an index that is outsise the bounds of the array.

Let’s say the following is our array. It has 5 elements −

int []  n = new int[5] {66, 33, 56, 23, 81};

Now if you will try to access elements with index more than 5, then the IndexOutOfRange Exception is thrown −

for (j = 0; j  

In the above example, we are trying to access above index 5, therefore the following error occurs −

System.IndexOutOfRangeException: Index was outside the bounds of the array.

Here is the complete code −

Example

using System;

namespace Demo {

  class MyArray {

     static void Main(string[] args) {

        try {

           int []  n = new int[5] {66, 33, 56, 23, 81};

           int i,j;

                 

           // error: IndexOutOfRangeException

           for (j = 0; j  

Output

Element[0] = 66

Element[1] = 33

Element[2] = 56

Element[3] = 23

Element[4] = 81

System.IndexOutOfRangeException: Index was outside the bounds of the array.

 at Demo.MyArray.Main (System.String[] args) [0x00019] in :0

The code will generate an error −

System.IndexOutOfRangeException −Index was outside the bounds of the array.

Explanation: