int[][] jaggedArray = new int[3][];

jaggedArray[0] = new int[5];
jaggedArray[1] = new int[4];
jaggedArray[2] = new int[2];

jaggedArray[0] = new int[] { 1, 3, 5, 7, 9 };
jaggedArray[1] = new int[] { 0, 2, 4, 6 };
jaggedArray[2] = new int[] { 11, 22 };

  int[][] jaggedArray2 = new int[][] 
{
  new int[] {1,3,5,7,9},
  new int[] {0,2,4,6},
  new int[] {11,22}
};

  int[][] jaggedArray3 = 
{
  new int[] {1,3,5,7,9},
  new int[] {0,2,4,6},
  new int[] {11,22}
};

// Assign 77 to the second element ([1]) of the first array ([0]):
jaggedArray3[0][1] = 77;

// Assign 88 to the second element ([1]) of the third array ([2]):
jaggedArray3[2][1] = 88;

int[][,] jaggedArray4 = new int[3][,] 
{
  new int[,] { {1,3}, {5,7} },
  new int[,] { {0,2}, {4,6}, {8,10} },
  new int[,] { {11,22}, {99,88}, {0,9} } 
};

class ArrayTest
{
  static void Main()
  {
    // Declare the array of two elements:
    int[][] arr = new int[2][];

    // Initialize the elements:
    arr[0] = new int[5] { 1, 3, 5, 7, 9 };
    arr[1] = new int[4] { 2, 4, 6, 8 };

    // Display the array elements:
    for (int i = 0; i < arr.Length; i++)
    {
      System.Console.Write("Element({0}): ", i);

      for (int j = 0; j < arr[i].Length; j++)
      {
        System.Console.Write("{0}{1}", arr[i][j], j == (arr[i].Length - 1) ? "" : " ");
      }
      System.Console.WriteLine();      
    }
    // Keep the console window open in debug mode.
    System.Console.WriteLine("Press any key to exit.");
    System.Console.ReadKey();
  }
}

  Element(0): 1 3 5 7 9
  Element(1): 2 4 6 8

class ImplicitlyTypedArraySample
{
  static void Main()
  {
    var a = new[] { 1, 10, 100, 1000 }; // int[]
    var b = new[] { "hello", null, "world" }; // string[]

    // single-dimension jagged array
    var c = new[]  
{ 
  new[]{1,2,3,4},
  new[]{5,6,7,8}
};

    // jagged array of strings
    var d = new[]  
{
  new[]{"Luca", "Mads", "Luke", "Dinesh"},
  new[]{"Karen", "Suma", "Frances"}
};
  }
}

    var contacts = new[] 
{
  new {
      Name = " Eugene Zabokritski",
      PhoneNumbers = new[] { "206-555-0108", "425-555-0001" }
    },
  new {
      Name = " Hanying Feng",
      PhoneNumbers = new[] { "650-555-0199" }
    }
};