adding two int array

Question

I have to add two int[] array in which a mian int[] array is intially vacant. I want to add the elements of another array in the main array . In the Main array, there would be more addtion that would be added in the last postion of the main array.

I have an array as -

var planetNotInRange = new int[7] ;

if(planetSign.Contains(tempFrind))
{
    var result = planetSign.Select((b, k) => b.Equals(tempFrind) ? k : -1)
                           .Where(k => k != -1).ToArray();

    // Here I want to add this result Array in to the planetNotInRange array, 
    // when ever there is some value in the result array.
}

this is in loop will give a number of array of integers. Now I want to concat in PLanetInRange Array one after other.

It's unclear what you're trying to do. Please provide a concrete example. — Jon Skeet
– Jon Skeet, Commented Sep 22, 2012 at 7:54
I have an array as - var planetNotInRange = new int[7] ; var result = planetSign.Select((b, k) => b.Equals(tempFrind) ? k : -1).Where(k => k != -1).ToArray(); this is in loop will give a number of array of integers. Now I want to concat in PLanetInRange Array one after other. — Kumar
– Kumar, Commented Sep 22, 2012 at 7:55
Don't add it as a comment - edit full details into your question. — Jon Skeet
– Jon Skeet, Commented Sep 22, 2012 at 7:56
Indeed - it's still not clear what the result should be. Please read tinyurl.com/so-hints. Until your question is clear, it's wasting everyone's time - including your own. Note that you can't increase the size of an array - you can either replace the elements, or you can create a new array. — Jon Skeet
– Jon Skeet, Commented Sep 22, 2012 at 8:00

Jon Skeet · Accepted Answer · 2012-09-22 08:01:37Z

2

It sounds like you shouldn't have an array to start with, if you want to add elements to it. Once an array has been created, its size is fixed.

Use a List<int> instead, and you can use

list.AddRange(array);

I'd usually advise using lists (and other collection types) over arrays anyway. Arrays are useful, obviously, but they're somewhat more primitive and low-level than other collections.

answered Sep 22, 2012 at 8:01

Jon Skeet

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