How to Use Two-Dimensional Array in C#

The following example demonstrates How to Use Two-Dimensional Array in C#.

Here we use a 2D array as a matrix. The following program shows how to input elements in a 2D array as well as display it as a matrix. Further, the program finds the sum of two matrices.

using System;

namespace TwoDArrayExample
{
    class Program
    {
        static void Main(string[] args)
        {
            //program to find sum of two matrix;

            //Declation of 2D array

            int[,] m1 = new int[2, 2];
            int[,] m2 = new int[2, 2];
            int[,] m3 = new int[2, 2];
            Console.WriteLine("Enter elements of first matrix: ");
            for(int i=0;i<2;i++)
            {
                for(int j=0;j<2;j++)
                {
                    m1[i, j] = Int32.Parse(Console.ReadLine());
                }
            }
            Console.WriteLine("Enter elements of second matrix: ");
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 2; j++)
                {
                    m2[i, j] = Int32.Parse(Console.ReadLine());
                }
            }
            //Find Sum
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 2; j++)
                {
                    m3[i, j] = m1[i, j] + m2[i, j];
                }
            }
            Console.WriteLine("M1");
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 2; j++)
                {
                    Console.Write(m1[i, j] + " ");
                }
                Console.WriteLine();
            }

            Console.WriteLine("M2");
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 2; j++)
                {
                    Console.Write(m2[i, j] + " ");
                }
                Console.WriteLine();
            }
            Console.WriteLine("Sum matrix M3");
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 2; j++)
                {
                    Console.Write(m3[i, j] + " ");
                }
                Console.WriteLine();
            }

        }
    }
}

Output

**A Program Demonstrating How to Use Two-Dimensional Array in C#**

Further Reading