If you cant do it please dont waste my question. Thnak you.

Looks like you dont understand what am asking for. What am asking for is a modification so that when the game is completed with the right numbers, a congratulatory message will appear. other wise how will you know if you won the game? The next modification is a RETRY button incase you want to retry the game. am not only asking for a retry button but a congratulatory message as well. thank you.

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Sudoku2 extends JFrame { public static final int GRID_SIZE = 9; public static final int SUBGRID_SIZE = 3; public static final int CELL_SIZE = 60; public static final int CANVAS_WIDTH = CELL_SIZE * GRID_SIZE; public static final int CANVAS_HEIGHT = CELL_SIZE * GRID_SIZE; public static final Color OPEN_CELL_BGCOLOR = Color.ORANGE; public static final Color OPEN_CELL_TEXT_YES = new Color(0, 255, 0); public static final Color OPEN_CELL_TEXT_NO = Color.BLUE; public static final Color CLOSED_CELL_BGCOLOR = new Color(240, 240, 240); public static final Color CLOSED_CELL_TEXT = Color.RED; public static final Font FONT_NUMBERS = new Font("Monospaced", Font.BOLD, 20); private JTextField[][] tfCells = new JTextField[GRID_SIZE][GRID_SIZE]; private int[][] puzzle1 = {{4, 3, 5, 2, 6, 9, 7, 8, 1}, {6, 8, 2, 5, 7, 1, 4, 9, 3}, {1, 9, 7, 8, 3, 4, 5, 6, 2}, {8, 2, 6, 1, 9, 5, 3, 4, 7}, {3, 7, 4, 6, 8, 2, 9, 1, 5}, {9, 5, 1, 7, 4, 3, 6, 2, 8}, {5, 1, 9, 3, 2, 6, 8, 7, 4}, {2, 4, 8, 9, 5, 7, 1, 3, 6}, {7, 6, 3, 4, 1, 8, 2, 5, 9}}; private int[][] puzzle2 = {{1, 5, 2, 4, 8, 9, 3, 7, 6}, {7, 3, 9, 2, 5, 6, 8, 4, 1}, {4, 6, 8, 3, 7, 1, 2, 9, 5}, {3, 8, 7, 1, 2, 4, 6, 5, 9}, {5, 9, 1, 7, 6, 3, 4, 2, 8}, {2, 4, 6, 8, 9, 5, 7, 1, 3}, {9, 1, 4, 6, 3, 7, 5, 8, 2}, {6, 2, 5, 9, 4, 8, 1, 3, 7}, {8, 7, 3, 5, 1, 2, 9, 6, 4}}; private int[][] masks1 = {{1, 1, 1, 1, 0, 1, 0, 1, 0}, {0, 0, 1, 1, 0, 1, 0, 1, 0}, {0, 0, 1, 1, 1, 0, 0, 1, 1}, {0, 0, 1, 0, 1, 1, 1, 0, 1}, {1, 1, 0, 0, 1, 0, 0, 1, 1}, {1, 0, 1, 1, 1, 0, 1, 0, 0}, {1, 1, 0, 0, 1, 1, 1, 0, 0}, {1, 0, 1, 1, 0, 1, 1, 0, 0}, {0, 1, 0, 1, 0, 0, 1, 1, 1}}; private int[][] masks2 = {{0, 1, 1, 0, 0, 0, 1, 1, 0}, {0, 0, 1, 1, 1, 1, 1, 0, 1}, {1, 1, 0, 0, 0, 1, 1, 0, 0}, {1, 1, 0, 0, 0, 1, 0, 1, 1}, {0, 1, 1, 0, 1, 0, 1, 1, 0}, {1, 1, 0, 1, 0, 0, 0, 1, 1}, {0, 0, 0, 0, 1, 1, 1, 1, 1}, {1, 0, 1, 1, 1, 1, 1, 0, 0}, {0, 1, 1, 0, 0, 0, 1, 1, 0}}; public Sudoku2(int s) { Container cp = getContentPane(); cp.setLayout(new GridLayout(GRID_SIZE, GRID_SIZE)); InputListener listener = new InputListener(); for (int row = 0; row < GRID_SIZE; ++row) { for (int col = 0; col < GRID_SIZE; ++col) { tfCells[row][col] = new JTextField(); switch(s) { case 1: { cp.add(tfCells[row][col]); if (masks1[row][col]==1) { tfCells[row][col].setText(""); tfCells[row][col].setEditable(true); tfCells[row][col].setBackground(OPEN_CELL_BGCOLOR); tfCells[row][col].addActionListener(listener); } else { tfCells[row][col].setText(puzzle1[row][col] + ""); tfCells[row][col].setEditable(false); tfCells[row][col].setBackground(CLOSED_CELL_BGCOLOR); tfCells[row][col].setForeground(CLOSED_CELL_TEXT); } tfCells[row][col].setHorizontalAlignment(JTextField.CENTER); tfCells[row][col].setFont(FONT_NUMBERS); } break; case 2: { cp.add(tfCells[row][col]); if (masks2[row][col]==1) { tfCells[row][col].setText(""); tfCells[row][col].setEditable(true); tfCells[row][col].setBackground(OPEN_CELL_BGCOLOR); tfCells[row][col].addActionListener(listener); } else { tfCells[row][col].setText(puzzle2[row][col] + ""); tfCells[row][col].setEditable(false); tfCells[row][col].setBackground(CLOSED_CELL_BGCOLOR); tfCells[row][col].setForeground(CLOSED_CELL_TEXT); } tfCells[row][col].setHorizontalAlignment(JTextField.CENTER); tfCells[row][col].setFont(FONT_NUMBERS); } break; } } cp.setPreferredSize(new Dimension(CANVAS_WIDTH, CANVAS_HEIGHT)); pack(); setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); setTitle("Sudoku2"); setVisible(true); } } public static void main(String[] args) { Sudoku2 s = new Sudoku2(2); } private class InputListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { boolean b=true; int rowSelected = -1; int colSelected = -1; JTextField source = (JTextField)e.getSource(); boolean found = false; for (int row = 0; row < GRID_SIZE && !found; ++row) { for (int col = 0; col < GRID_SIZE && !found; ++col) { if (tfCells[row][col] == source) { rowSelected = row; colSelected = col; found = true; } } } int ss; String s; s=tfCells[rowSelected][colSelected].getText(); ss=Integer.parseInt(s); if(ss==puzzle1[rowSelected][colSelected]){ tfCells[rowSelected][colSelected].setBackground(Color.GREEN); masks1[rowSelected][colSelected]=0; } else tfCells[rowSelected][colSelected].setBackground(Color.RED); for(int i=0;i<9;i++){ for(int j=0;j<9;j++){ if(masks1[i][j]!=0) b=false; } } if(b==true) { JOptionPane.showMessageDialog(null, "Congratulation!"); } } } }