Returning an array

I still need help understanding what is happening here:

class ParamArrayWithReturn
{

public static void Main()
{

F(3, 2, 15);

}

public static int[][] F(int n, int m, int value)
{
int[][] x = new int[ n ][];

for (int i = 0; i < n; i++)
{
x[ i ] = new int[m];
for (int j = 0; j < m; j++)
x[ i ][j] = value;
}

return x;
}
}

I see that we are going to dimension array to 3 indexes. Then I see what happens after that is that we then create two internal array indexes inside those 3. I also see that in this case, we will end up having the value of 15 at each index.
I believe it will look something like this:
15, 15
15,15
15, 15

Now why would we return x here And what happens to it when it returns to the method call I am confused by that part of the example.

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Returning an array

Mahmoud_Fayed
Thanks for that info too.
John Paul Cook

It's difficult to understand your example because of the smileys, but i think i can help.

The array is allocated on the managed heap, and the method returns a reference to the data.

When this reference is not saved after the call to F(), the data becomes orphaned and therefore a candidate for garbage collection.

Does that answer your question
Kamalkanth Nayak

Hello!

please see the other post, I replied your answer there!

Hope it'll help!

Best Regards,
Returning an array

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