Not able to get rid of IndexOutOfRangeException

static void Main(string[] args)

{

int[] A = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };

int[] B = { 4, 8, 8, 12, 15 };

int? prev = null;

{

for (int i = 0; i < B.Length; i++)

{

for (int j = 0; j < A.Length; j++)

{

if (B[i] < prev+1)

{

if (B[i] == A[j-1])

{

Console.WriteLine(B[i]);

i++;

}

if (B[i] == A[j])

{

Console.WriteLine(B[i]);

i++;

}

else

{

Console.WriteLine(0);

}

prev = B[i] ;

Console.WriteLine();

}

i run this program

on 14 Iteration B[] which has 5 length , rit but you increment on below red highlighted.

if (B[i] == A[j])

{

Console.WriteLine(B[i]);

i++;

}

due to this here your length of B[] is 5 and you put 6th value on array B[]

prev = B[i];

here that why this error occur

i modified your code by increasing B[] array length ,then its fine and running . below is modified code

int[] A = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
int[] B = { 4, 8, 8, 12, 15,0 };
int? prev = null;
{
for (int i = 0; i < B.Length; i++)
{
for (int j = 0; j < A.Length; j++)
{
if (B[i] < prev + 1)
{
if (B[i] == A[j - 1])
{
Console.WriteLine(B[i]);
i++;
}
if (B[i] == A[j])
{
Console.WriteLine(B[i]);
i++;
}
else
{
Console.WriteLine(0);
}
}
prev = B[i];
Console.WriteLine();
}
}
}

check it plz.. hope so this will help you

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Amit Kumar7y ago
Hi, In your code prev = B[i] ; is throw an error because u have already set the size of array B with 5 element but in your code you are inserting more than that. That's the reason
Mohsin Arif7y ago
hi
i run this program
on 14 Iteration B[] which has 5 length , rit but you increment on below red highlighted.
if (B[i] == A[j])
{
Console.WriteLine(B[i]);
i++;
}

due to this here your length of B[] is 5 and you put 6th value on array B[]
prev = B[i];
here that why this error occur
i modified your code by increasing B[] array length ,then its fine and running . below is modified code
int[] A = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
                int[] B = { 4, 8, 8, 12, 15,0 };
                int? prev = null;
                {
                    for (int i = 0; i < B.Length; i++)
                    {
                        for (int j = 0; j < A.Length; j++)
                        {
                            if (B[i] < prev + 1)
                            {
                                if (B[i] == A[j - 1])
                                {
                                    Console.WriteLine(B[i]);
                                    i++;
                                }
                                if (B[i] == A[j])
                                {
                                    Console.WriteLine(B[i]);
                                    i++;
                                }
                                else
                                {
                                    Console.WriteLine(0);
                                }
                            }
                            prev = B[i];
                            Console.WriteLine();
                        }
                    }
                }
check it plz.. hope so this will help you