C# week4_2

16/02/201

Array: use more than one value

int[] i = new int[3];

int[0] = 1;

int[1] = 5;

int[2] = 7;

      ↑index or secretive value (If you create array "n", it means index becomes "n-1".)

string[] k = new string[2];

k[0] = "2"; ….

int[] i = {1,2,3,4};

Multidimensional Array: more than one dimensional array

* It doesn't mean graph such as 3D (x, y, z), so C# allow to use whatever number of dimensional is. (But it will be required more memory.)
int[,] m = new int[2,2,2];

jagged array: it become to use memory efficiently when you use multidimensional array.

int[,] l = new int[4][];

l[0] = new int[1];

l[1] = new int[2];

l[2] = new int[1];

l[3] = new int[1];

l[0][0] = 1;

l[0][1] = 5; ←error