C program to prints an identity matrix using for loop

C# program which prints an identity matrix using for loop

Program statement:

Write a program which prints an identity matrix using for loop i.e. takes value n from user and show the identity table of size n * n.

Solution:

static void Main(string[] args)
 {
 int n,i,j;
 Console.WriteLine("Enter value of n:");
 n = Convert.ToInt32(Console.ReadLine());
 int[,] arr=new int[n,n];
 
 for (i = 0; i < n; i++)
 {
 for (j = 0; j < n; j++)
 {
 if (i == j)
 arr[i, j] = 1;
 else
 arr[i, j] = 0;
 Console.Write(arr[i, j]);
 }
 Console.WriteLine(); 
 }
 Console.ReadLine();
 }

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