Question

I have already looked at some array topics but I am still stumped.

I wish to add a new line to my jagged array – and am strugigng to get the syntax right..

        int[][] intJaggedArray = new int[7][];

        intJaggedArray[0] = new int[3] { 1, 1, 1 };
        intJaggedArray[1] = new int[3] { 2, 2, 2 };
        intJaggedArray[2] = new int[3] { 3, 3, 3 };
        intJaggedArray[3] = new int[3] { 4, 4, 4 };
        intJaggedArray[4] = new int[3] { 5, 5, 5 };
        intJaggedArray[5] = new int[3] { 6, 6, 6 };
        intJaggedArray[6] = new int[3] { 7, 7, 7 };

So now if i want to add

        intJaggedArray[0] = new int[3] { 1, 1, 2 };

so the array ends up being as shown below how do I acheive it – thanks in advance – A noob from England. (And a big thanks in advance)

        intJaggedArray[0] = new int[3] { 1, 1, 1 };
        intJaggedArray[0] = new int[3] { 1, 1, 2 };
        intJaggedArray[1] = new int[3] { 2, 2, 2 };
        intJaggedArray[2] = new int[3] { 3, 3, 3 };
        intJaggedArray[3] = new int[3] { 4, 4, 4 };
        intJaggedArray[4] = new int[3] { 5, 5, 5 };
        intJaggedArray[5] = new int[3] { 6, 6, 6 };
        intJaggedArray[6] = new int[3] { 7, 7, 7 };

Answer 1

What do you want to do? Insert a line between 0 and 1? Or replace the existing line 0?

Your line :

intJaggedArray[0] = new int[3] { 1, 1, 2 }; 

simply replaces the existing line 0.

You can’t insert a line in an array. To do so, use a list instead:

List<int[]> myList = new List<int[]>();
myList.Add(new int[] {...});
myList.Add(new int[] {...});
myList.Add(new int[] {...});

...

myList.Insert(1, new int[] {...});

Or if you want to replace the existing line, then simply: