Question

C# programming

using System;

                       

public class Matrix {

     public int[,] elements;

    

     public Matrix(int[,] init) {

          elements = init;

     }

    

     public void Display() {

          for (int i=0;i<elements.GetLength(0);i++) {

              for (int j=0;j<elements.GetLength(1);j++) {

                   Console.Write(elements[i,j]+" ");

              }

              Console.WriteLine();

          }

     }

}

public class Program

{

     public static void Main()

     {

          Matrix m = new Matrix(new int[,] {{3,4,5},{6,7,8},{9,0,0}});

          m.Display();

     }

}

In the method Display, we display the matrix to the console. This, however, makes the class unusable in a GUI environment. There are many ways to separate Model/VIew here. One way is to create a MatrixDisplayer class that is responsible for displaying Matrix objects.

Please do the following:

1. Remove the Display method in the Matrix class
2. Create a MatrixDisplayer class with a virtual Display method (with Matrix as input parameter) that displays the input Matrix to the console
3. Create a WPF project and add a Button and a TextBlock
4. Create a GUIMatrixDisplayer class that inherits the MatrixDisplayer class and override the Display method so that it will display the matrix in a certain TextBlock (you may need a custom constructor)
5. Verify your code by displaying a Matrix object when the user presses the Button

Answer 1