Access elements from rectangular Array

RectangularArray.cs

 public class RectangularArray
    {
        public static void Main(String[] args)
        {

            var rectangularArray = new int[,] {
                {1,2,3 },
                {4,5,6 },
                {7,8,9}
            };

            //Accessing elements of rectangular or 2d array

            for (int i = 0; i < rectangularArray.GetLength(0); i++)
            {
                for (int j = 0; j < rectangularArray.GetLength(1); j++)
                {
                    Console.WriteLine(rectangularArray[i, j]);

                }


            }
        }
    }