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  • Two dimensional array in c#

    @shikha.bansal
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    Two dimensional array is a form of matrix in which users can have rows and columns as per need. We can think of table in which x no.of rows and y no.of columns are available.

    Syntax: 

    1. int item = a[i,j]

    This is a two dimensional array which contains i no. of rows and j no. of columns, Here a represents the array and i and j are also used to define each array of element,it is used as a subscript.

    Let's take an example to initialize a two dimensional array:

    This array is with 3 rows and each row has 4 columns.

    1. int [,] a = new int [3,4] {
    2. col[0][1][2][3]
    3.    {0, 1, 2, 3} ,   /*   row  [0] */
    4.    {4, 5, 6, 7} ,   /*   row  [1] */
    5.    {8, 9, 10, 11}   /*   row  [2] */
    6. };

    refer screenshot for an example:

    Let's Create a program to handle the 2-dimensional array:

    1. using System;
    2. namespace TwodimensionalArrayApplication
    3. {
    4.    class MytwoDimensionalArray
    5.    {
    6.       static void Main(string[] args)
    7.       {
    8.          /* an array with 4 rows and 2 columns*/
    9.          int[,] a = new int[4, 2] 
    10.          { {0,0}, 
    11.         {1,2}, 
    12.         {3,4},
    13.          {5,6} };
    14.          int i, j;
    15.          
    16.          /* output each array element's value */
    17.          for (i = 0; i < 4; i++)
    18.          {
    19.             for (j = 0; j < 2; j++)
    20.             {
    21.                Console.WriteLine("a[{0},{1}] = {2}", i, j, a[i,j]);
    22.             }
    23.          }
    24.          Console.ReadKey();
    25.       }
    26.    }
    27. }

    when program will be executed,output will be:

    1. a[0,0]: 0
    2. a[0,1]: 0
    3. a[1,0]: 1
    4. a[1,1]: 2
    5. a[2,0]: 3
    6. a[2,1]: 4
    7. a[3,0]: 5
    8. a[3,1]: 6

     

    C Sharp
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