Font size

app/src/main/java/gui/SudokuView.java

@@ -1,6 +1,8 @@
 package gui;
 
 import javax.swing.*;
+import javax.swing.border.Border;
+
 import java.awt.*;
 import java.awt.event.*;
 
@@ -27,40 +29,48 @@ public class SudokuView extends JFrame {
         setTitle("Sudoku Solver");
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         setLayout(new BorderLayout());
+        setIconImage(new ImageIcon("src/main/resources/sudoku.png").getImage());
 
         initializeGrid();
         initializeButtons();
 
-        pack();
+        setMinimumSize(new Dimension(500, 500));
-        setLocationRelativeTo(null);
+        pack(); // Resize the window to fit the components, if necessary
+        setLocationRelativeTo(null); // Center the window
     }
 
     /** Initialize the grid, called by the constructor */
     private void initializeGrid() {
         grid = new JTextField[9][9];
         JPanel gridPanel = new JPanel(new GridLayout(9, 9));
+        gridPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
+
+        int fontSize = 24;
+        String fontName = gridPanel.getFont().getName();
+        Border border = BorderFactory.createLineBorder(Color.BLACK);
+        Font font = new Font(fontName, Font.BOLD, fontSize);
 
         for (int row = 0; row < 9; row++) {
             for (int col = 0; col < 9; col++) {
-                grid[row][col] = new JTextField(2);
+                JTextField cell = new JTextField(2);
-                grid[row][col].setHorizontalAlignment(JTextField.CENTER);
+                cell.setHorizontalAlignment(JTextField.CENTER);
+                cell.setFont(font);
+                cell.setBorder(border);
+                cell.setForeground(Color.BLACK);
 
                 // Set background color to gray for every third JTextField
                 if ((row / 3 + col / 3) % 2 == 1) {
-                    grid[row][col].setBackground(Color.LIGHT_GRAY);
+                    cell.setBackground(Color.LIGHT_GRAY);
                 }
 
-                Font boldFont = new Font(grid[row][col].getFont().getName(), Font.BOLD, grid[row][col].getFont().getSize());
+                grid[row][col] = cell;
-                grid[row][col].setFont(boldFont);
+                gridPanel.add(cell);
-                grid[row][col].setForeground(Color.BLACK);
-                gridPanel.add(grid[row][col]);
             }
         }
 
         add(gridPanel, BorderLayout.CENTER);
     }
 
-
     /** Initialize the buttons, called by the constructor */
     private void initializeButtons() {
         solveButton = new JButton("Solve");