anyone good at programing?

Trying to get it where when you click on the button you can change number.

but cant change the original numbers

once the numbers match {4,9,2},{3,5,7},{8,1,6}

it says you win do you want to replay

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class Lab10 extends JFrame

{ private JLabel greeting;

private int[][] board = new int [4][4];

private boolean[][] fixed = new boolean [4][4];

private JTextField gameButtons[][] = new JTextField[4][4];

private boolean firstGame = true;

private final int window_width =400;

private final int window_height=400;

static final int[][]winnum = new int[][] {{4,9,2},{3,5,7},{8,1,6}};

static final int[][]winnum2 = new int[][] {{8,1,6},{3,5,7},{4,9,2}};

public Lab10()

{

boolean playAgain = true;

boolean gameOver = false;

boolean firstGame = true;

JFrame frame = new JFrame("Numbers Game");

setTitle("Lab 10");

setSize(window_width, window_height);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setLayout(new GridLayout(4,4));

greeting = new JLabel ("Numbers Game");

JButton b1 = new JButton("0");

JButton b2 = new JButton("9");

JButton b3 = new JButton("2");

JButton b4 = new JButton("0");

JButton b5 = new JButton("0");

JButton b6 = new JButton("0");

JButton b7 = new JButton("8");

JButton b8 = new JButton("0");

JButton b9 = new JButton("0");

add(b1);add(b2);add(b3);add(b4);add(b5);add(b6);add(b7);add(b8);add(b9);

add(greeting);

setVisible(true);

for (int r = 1; r <= 9; r++)

{

if (b1.equals(null))

{}

}

// set up the game. This includes creating all the elements of gameButtons. Each one needs a reasonable Font

// so that it looks nice. You also might want to center the text.

// Also need to create the button and add the listener to it.

// I will let you play with the formatting to make the entire GUI look professional

}

public static void main(String args[])

{

Lab10 game = new Lab10();

new Lab10();

}

class ButtonListener implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

// loop through every element in gameButtons, making sure all of them have some value (length != 0)

// and that the number in the textfield is between 1 and 9. You don't have to worry about non-numeric input.

// As you get each value from the textfield, set it into the board array.

// If every element in gameButtons has a number between 1 and 9 in it, then you can call CheckWinner. This method

// is the same as the first lab and uses the board array that you just set.

// If there is a winner, then display congratulations and call NextBoard if the player wants to play again.

// If there is not a winner, then display a feedback and allow the user to continue

}

}

public boolean CheckForWinner()

{

// default winner to true, and look for the negative case

boolean winner = true;

// make sure all numbers are unique. We will do this by creating an array of booleans for each number. A boolean

// element of an array defaults to a false, which is what we want.

// then we will iterate the array looking at each digit, and setting the respective element of digits true

// if we hit a second of any number, then we have a duplicate and so can't have a winner.

boolean [] digits = new boolean[10];

for (int r = 1; r <= 3; r++)

{

for (int c = 1; c <= 3; c++)

{

if (digits[board[r][c]] == false)

{

digits[board[r][c]] = true;

}

else

{

// here we have a duplicate and so can't have a winner

winner = false;

}

}

}

if (winner)

{

// first result is diagnoal up

int firstResult = board[1][1] + board[2][2] + board[3][3];

// check diagonal back

if ((board[3][1] + board[2][2] + board[1][3]) == firstResult)

{

// if diagonals are the same, check the rows and columns

for (int i = 1; i <= 3; i++)

{

// check rows

if (board[1] + board[2] + board[3] != firstResult)

{

winner = false;

break;

}

// check columns

if (board[1] + board[2] + board[3] != firstResult)

{

winner = false;

break;

}

}

}

else

{

winner = false;

}

}

return winner;

}

public void NextGame()

{

// set up the second game by clearing the arrays and then setting the values for the second game.

}

}