IDEA User input data Convert to index Using index number fund element vaule Output element vaule Screenshot Code using System; namespace array2d { public class array2d { public static void Main(string[] args) { //initilizing arrays string[,] platenumber = new string[5,3] { {"ZJI163","USA1008","PHA101"}, {"PJ130108", "USA1006","JAP118" }, {"MAX168", "USA1002" ,"TWD120"}, { "AZZ9756", "USA1005","KOR119" }, {"NAS1223","USA109","DDT886"} }; //wait for user input,convert to int Console.WriteLine("Welcome use DK parking system!\n Solt: 0-4 \n floor: 0-2"); Console.WriteLine("Plz type slot: "); int solt = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Plz type floor: "); int floor = Convert.ToInt32(Console.ReadLine()); // decision the length of the element if (solt < 5 && floor < 3) { string car = platenumber[solt, floor]; Console.WriteLine("Found platenumber is :" + car); } else { Console.WriteLine("\nThe value you entered does not exist"); } Console.WriteLine("Thank you !"); Console.ReadLine(); } } }

C# Multidimensional Arrays As discussed in the previous chapter, Arrays in C# will support multi-dimensional arrays. In c#, a multidimensional array is an array that contains more than one dimension to represent the elements in a tabular format like rows and columns.In c#, multidimensional arrays can support either two or three-dimensional series. To create multi-dimensional arrays, we need to use a comma (,) separator inside the square brackets. C# Multi-Dimensional Array Declaration In c#, Multidimensional Arrays can be declared by specifying the data type of elements followed by the square brackets [] with comma (,) separator. The following are examples of creating two or three-dimensional arrays in the c# programming language. Question: Create a complete C# program that will compute the average of all elements in array x int [,] x = new int[4, 5] { { 4, 5, 6, 2, 12 }, { 10, 25, 33, 22, 11 },{ 211, 32, 43, 54, 65 }, { 3, 2, 1, 5, 6 } }; Average Solution Use for loop get array x elements values Add values Divide results by no. of values Code using System; namespace Module7 { public class Module7 { public static void Main(string[] args) { //initilizing array int[,] x = new int[4, 5] { { 4, 5, 6, 2, 12 }, { 10, 25, 33, 22, 11 }, { 211, 32, 43, 54, 65 }, { 3, 2, 1, 5, 6 } }; Console.WriteLine("---Two dimensional array elements---"); // use for loop get array x elements for(int y=0; y<4; y++) { int sum = 0; double avg =…