# Demonstrate Length with jagged arrays : Array Dimension « Collections Data Structure « C# / C Sharp

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Demonstrate Length with jagged arrays
 ```  // Demonstrate Length with jagged arrays.    using System;    public class Jagged {     public static void Main() {       int[][] network_nodes = new int[4][];       network_nodes[0] = new int[3];       network_nodes[1] = new int[7];       network_nodes[2] = new int[2];       network_nodes[3] = new int[5];            int i, j;        // fabricate some fake CPU usage data         for(i=0; i < network_nodes.Length; i++)          for(j=0; j < network_nodes[i].Length; j++)           network_nodes[i][j] = i * j + 70;           Console.WriteLine("Total number of network nodes: " + network_nodes.Length + "\n");        for(i=0; i < network_nodes.Length; i++) {         for(j=0; j < network_nodes[i].Length; j++) {          Console.Write("CPU usage at node " + i +                         " CPU " + j + ": ");          Console.Write(network_nodes[i][j] + "% ");           Console.WriteLine();         }        Console.WriteLine();       }      }   }                         ```
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 1 Demonstrate a two-dimensional array 2 Sum the values on a diagonal of a 3x3x3 matrix 3 Initialize a two-dimensional array 4 Demonstrate jagged arrays 5 Use the Length array property on a 3-D array 6 Call GetLength for two dimenional array 7 illustrates the use of a two-dimensional rectangular array 8 initialize a two-dimensional rectangular array, and use the array properties and methods 9 the use of a three-dimensional rectangular array 10 the use of a jagged array 11 Uses a two-dimensional array to store grades for students 12 Uses a jagged array to store sales figures 13 Multidimensional and Jagged Arrays:Jagged Arrays 14 Multi dimensional Arrays 1 15 Catch OutOfMemoryException 16 Catch IndexOutOfRangeException Exception 17 Defines a 2D Array