C# Program to Find the Largest Element in a Matrix

/*
 * C# Program to Find Largest Element in a Matrix
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
    class arrsampl
    {
        int[,]x;
        arrsampl()
        {
            x = new int[,] { { 12, 21, 63 }, { 40, 15, 6 } };
        }
        void printarray()
        {
            Console.WriteLine("Elements in the Given Matrix : ");
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 3; j++)
                {
                    Console.Write(x[i, j] + "\t");
                }
                Console.WriteLine("\n");
            } 
        }
        int max()
        {
            int big = x[0, 0];
            for (int i = 0; i < 2; i++)
            {
                for (int j = 0; j < 3; j++)
                {
                    if (big < x[i, j])
                    {
                        big = x[i, j];
                    }
                }
            }
            return big;
        }
        public static void Main()
        {
            arrsampl obj = new arrsampl();
            obj.printarray();
            Console.WriteLine("Largest Element : {0}", obj.max());
            Console.ReadLine();
        }
    }