using System;

​

public class Program

{

    public static void Main()

    {

        int[][] intArray = new int[3][];

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

        intArray[1] = new int[3]{3, 4, 5};

        intArray[2] = new int[4]{6, 7, 8, 9};

        Console.WriteLine( $"There are {intArray.Length} rows in the array.");

        Console.WriteLine("\n--Rank property--\n");

        int[] intArray1 = new int[3];

        int[,] intArray2= new int[3,2];

        int[,,] intArray3= new int[3,2,2];

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

​

        Console.WriteLine($"[]: {intArray1.Rank} dimension");

        Console.WriteLine($"[,]: {intArray2.Rank} dimensions");

        Console.WriteLine($"[,,]: {intArray3.Rank} dimensions");

        Console.WriteLine($"[][]: {jaggedArray.Rank} dimension");

        Console.WriteLine("\n--GetLength Method--\n");

        Console.WriteLine($"[][]: {jaggedArray.GetLength(0)} elements");

    }

}