How to add an Array element to an NSMutableArray which already contains another array Values?

I have three different NSMutableArray, lets say A,B,and C. I am adding the A array to the C and from array B I need only one element. So i need to add that element to the C array. Please give me an ide开发者_如何学Ca.

   NSMutableArray *a;
   NSMutableArray *b;
   NSMutableArray *c;

   //somewhere they get initialized...

   [c addObject:a];
   [c addObject: [b objectAtIndex:n]];

int index;
NSArray *A, *B;
NSMutableArray *C = [NSMutableArray arrayWithArray:A];
[C addObject:[B objectAtIndex:index]];

[C addObjectsFromArray:A];
id o = [B objectAtIndex:0]; // first item, or find the item you're looking for
[C addObject:o];

That should do it. This assumes you've already alloc'd and init'd or otherwise own a created NSMutableArray for all of A, B and C.

[c addObjectsFromArray:a];
[c addObject:[b objectAtindex:index];

Do it like this:

if (A.count != 0) {
    for (int i=0; i<=A.count-1; i++) {
        [C addObject:[A objectAtIndex:i]];
    }
}

This will add all the object of array A in array C.

[C addObject:[B objectAtIndex:n]];

This insert an object of array B which pointed by index 'n' in array C.