Creating a 3x3 matrix with user input numbers C# -

im trying create 3x3 matrix in c# language, know how create matrix need user input numbers. hope can me thank that.

i add while loop , use double.tryparse validate user's input. usin bwhazel's code:

const int matrix_rows = 3; const int matrix_columns = 3;  double[,] matrix = new double[matrix_rows, matrix_columns];  (int = 0; < matrix_rows; i++) {     (int j = 0; j < matrix_columns; j++)     {         double input;         console.write("enter value ({0},{1}): ", i, j);         while (!double.tryparse(console.readline(), out input)         {             console.write("enter correct value ({0},{1}): ", i, j);         }         matrix[i,j] = input     } } 

to totals rows can use following snippet:

for (int = 0; < matrix_rows; i++)  {     // each row     double sum = 0.0;     (int j = 0; j < matrix_columns; j++)     {         sum += matrix[i,j];     }     console.writeline(string.format("the sum row {0} is: {1}", i, sum)); }