public static int ValidationNull(int a)
{
while (a <= 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write("Num not equally null. Try again: ");
Console.ResetColor();
a = CustomMethods.ValidationStrInt(Console.ReadLine());
}
return(a);
}
static void Main(string[] args)
{
string again;
do
{
Console.Write("Enter size matrix NxN: ");
int n = CustomMethods.ValidationStrInt(Console.ReadLine());
n = CustomMethods.ValidationNull(n);
Console.WriteLine("\nDefault matrix: \n");
int[,] matrix = new int[n, n];
Random random = new Random();
for (int i = 0; i < matrix.GetLength(0); i++)
{
for (int j = 0; j < matrix.GetLength(1); j++)
{
matrix[i, j] = random.Next(1, 99);
Console.Write(matrix[i, j] + "\t");
}
Console.WriteLine();
}
Console.WriteLine("\n=================================================\n");
int[,] transpose = new int[n, n];
Console.WriteLine("Transpose matrix: \n");
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
transpose[i, j] = matrix[j, i];
Console.Write(transpose[i, j] + " \t ");
if (j == n - 1)
{
Console.WriteLine();
}
}
}
Console.WriteLine("\n=================================================\n");
Console.WriteLine("Upper triangular matrix: \n");
for (int i = 0; i < matrix.GetLength(0); i++)
{
for (int j = 0; j < matrix.GetLength(1); j++)
{
if (j > i)
{
matrix[i, j] = 0;
Console.Write(matrix[i, j] + "\t");
}
}
Console.WriteLine();
}
Console.WriteLine("\n=================================================\n");
Console.WriteLine("Lower triangular matrix: \n");
for (int i = 0; i < matrix.GetLength(0); i++)
{
for (int j = 0; j < matrix.GetLength(1); j++)
{
if (i > j)
{
matrix[i, j] = 0;
Console.Write(matrix[i, j] + "\t");
}
}
Console.WriteLine();
}
Console.WriteLine("\nAgain? Press Y or any key to exit");
again = Console.ReadLine();
Console.Clear();
}while (again == "Y" || again == "y");
}
