Data commit

Task/Multi-dimensional-array/C-sharp/multi-dimensional-array-1.cs

@@ -0,0 +1,9 @@
+var array = new int[,] { //Dimensions are inferred
+    { 1, 2, 3 },
+    { 4, 5, 6}
+}
+//Accessing a single element:
+array[0, 0] = 999;
+
+//To create a 4-dimensional array with all zeroes:
+var array = new int[5, 4, 3, 2];

Task/Multi-dimensional-array/C-sharp/multi-dimensional-array-2.cs

@@ -0,0 +1,18 @@
+var array = new int[][] { //Dimensions are inferred
+    new [] { 1, 2, 3, 4 },
+    new [] { 5, 6, 7, 8, 9, 10 }
+}
+//Accessing a single element:
+array[0][0] = 999;
+
+//To create a 4-dimensional array with all zeroes:
+var array = new int[5][][][];
+for (int a = 0; a < array.Length; a++) {
+    array[a] = new int[4][][];
+    for (int b = 0; b < array[a].Length; b++) {
+        array[a][b] = new int[3][];
+        for (int c = 0; c < array[a][b].Length; c++) {
+            array[a][b][c] = new int[2];
+        }
+    }
+}

Task/Multi-dimensional-array/C-sharp/multi-dimensional-array-3.cs

@@ -0,0 +1,17 @@
+var array = (int[,,,])Array.CreateInstance(typeof(int), new [] { 5, 4, 3, 2 }, new [] { 10, 10, 10, 10 });
+int n = 1;
+//Note: GetUpperBound is inclusive
+for (int a = array.GetLowerBound(0); a <= array.GetUpperBound(0); a++)
+for (int b = array.GetLowerBound(1); b <= array.GetUpperBound(1); b++)
+for (int c = array.GetLowerBound(2); c <= array.GetUpperBound(2); c++)
+for (int d = array.GetLowerBound(3); d <= array.GetUpperBound(3); d++)
+    array[a, b, c, d] = n++;
+
+//To set the first value, we must now use the lower bounds:
+array[10, 10, 10, 10] = 999;
+//As with all arrays, Length gives the TOTAL length.
+Console.WriteLine("Length: " + array.Length);
+Console.WriteLine("First 30 elements:");
+//The multidimensional array does not implement the generic IEnumerable<int>
+//so we need to cast the elements.
+Console.WriteLine(string.Join(" ",  array.Cast<int>().Take(30)) + " ...");