CS Jagged Arrays

What is Jagged Array?

In C #, the jagged array is also called the array of the arrays, because the arrays are its elements. Jagged array element size can be differ.

Jagged Array Declaration

Declaring jagged array with two items.

    int[][] arr = new int[2][];
 

 

 

Jagged Array Initialization

Initialization Jagged array. The size of the element can be vary.

    arr[0] = new int[4];  
    arr[1] = new int[6]; 

Jagged Array initialization and fill with elements

Example for initializing and filling in jagged array elements

    arr[0] = new int[4] { 11, 21, 56, 78 };         
    arr[1] = new int[6] { 42, 61, 37, 41, 59, 63 };

 

    arr[0] = new int[] { 11, 21, 56, 78 };         
    arr[1] = new int[] { 42, 61, 37, 41, 59, 63 }; 

 

C# Jagged Array Example

C # jagged example that declares, initializes and traverse jagged arrays.

    public class JaggedArrayTest  
    {  
        public static void Main()  
        {  
            int[][] arr = new int[2][];// Declare the array  
      
            arr[0] = new int[] { 11, 21, 56, 78 };// Initialize the array          
            arr[1] = new int[] { 42, 61, 37, 41, 59, 63 };  
      
            // Traverse array elements  
            for (int i = 0; i < arr.Length; i++)  
            {  
                for (int j = 0; j < arr[i].Length; j++)  
                {  
                    System.Console.Write(arr[i][j]+" ");  
                }  
                System.Console.WriteLine();  
            }  
        }  
    }  

Output:

11 21 56 78 
42 61 37 41 59 63

 

 

Initialization of Jagged array upon Declaration

See an example in which the jagged array is initialized during statement.

    int[][] arr = new int[3][]{  
            new int[] { 11, 21, 56, 78 },  
            new int[] { 2, 5, 6, 7, 98, 5 },  
            new int[] { 2, 5 }  
            };  

Example:

    public class JaggedArrayTest  
    {  
        public static void Main()  
        {  
            int[][] arr = new int[3][]{  
            new int[] { 11, 21, 56, 78 },  
            new int[] { 2, 5, 6, 7, 98, 5 },  
            new int[] { 2, 5 }  
            };  
      
            // Traverse array elements  
            for (int i = 0; i < arr.Length; i++)  
            {  
                for (int j = 0; j < arr[i].Length; j++)  
                {  
                    System.Console.Write(arr[i][j]+" ");  
                }  
                System.Console.WriteLine();  
            }  
        }  
    }  

Output:

11 21 56 78 
2 5 6 7 98 5 
2 5