TicTacToe.java

package com.tinkeracademy.projects;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JOptionPane;

public class TicTacToe implements ActionListener {
	
	public int round = 0;
	
	JButton[][] buttons;

	public static void main(String[] args) {
		TicTacToe ticTacToe = new TicTacToe();
		javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
            	ticTacToe.createAndShowGUI();
            }
        });
	}
	
	
	public void createAndShowGUI() {
		Window.show();
		Window.addLabel("Tic Tac Toe Application Developed By: Tinker Academy v1.0");
		String[][] controls = {
				{ "", "", "" },
				{ "", "", "" }, 
				{ "", "", "" }
		};
		buttons = Window.addGridButtons(controls);
		for (int i = 0; i < buttons.length; i++) {
			JButton[] innerArray = buttons[i];
			for (int j = 0; j < innerArray.length; j++) {
				JButton button = innerArray[j];
				button.addActionListener(this);
				Font font = new Font(Font.SANS_SERIF, Font.PLAIN, 32);
				button.setFont(font);
			}
		}
	}


	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		// System.out.println("Button clicked");
		String text = e.getActionCommand();
		if (text.equals("")) {
			// System.out.println("X");
			JButton button = (JButton) e.getSource();
			if (round % 2 == 0) {
				button.setText("X");
			} else {
				button.setText("O");
			}
			round++;
			if (round == 9) {
				System.out.println("Game Ended!");
				boolean won = checkWon();
				if (won) {
					JOptionPane.showMessageDialog(Window.frame, "You won!!");
				} else {
					JOptionPane.showMessageDialog(Window.frame, "Draw!!");
				}
				clearBoard();
			} else {
				boolean won = checkWon();
				if (won) {
					JOptionPane.showMessageDialog(Window.frame, "You won!!");
					clearBoard();
				}
			}
		}
	}
	
	public boolean checkWon() {
			 
		//     _______ _______ ________
		//    |		  |		  |       |
		//    |  0,0  |  0,1  |  0,2  |
		//    |_______|_______|_______|
		//     _______ _______ ________
		//    |		  |		  |       |
		//    |  1,0  |  1,1  |  1,2  |
		//    |_______|_______|_______|
		//     _______ _______ ________
		//    |		  |		  |       |
		//    |  2,0  |  2,1  |  2,2  |
		//    |_______|_______|_______|
		
		// 	  Winning Triple 1
		//	  Buttons at (0,0), (0,1) and (0,2) display 'X'
		// 	  Buttons at (0,0), (0,1) and (0,2) display 'O'
		
		if (buttons[0][0].getText().equals("X") 
				&& buttons[0][0].getText().equals(buttons[0][1].getText()) 
				&& buttons[0][1].getText().equals(buttons[0][2].getText())) {
			return true;
		}
		if (buttons[0][0].getText().equals("O") 
				&& buttons[0][0].getText().equals(buttons[0][1].getText()) 
				&& buttons[0][1].getText().equals(buttons[0][2].getText())) {
			return true;
		}
		
		// 	  Winning Triple 2
		//	  Buttons at (1,0), (1,1) and (1,2) display 'X' 
		// 	  Buttons at (1,0), (1,1) and (1,2) display 'O'
		
		if (buttons[1][0].getText().equals("X") 
				&& buttons[1][0].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[1][2].getText())) {
			return true;
		}
		if (buttons[1][0].getText().equals("O") 
				&& buttons[1][0].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[1][2].getText())) {
			return true;
		}
		
		// 	  Winning Triple 3
		//	  Buttons at (2,0), (2,1) and (2,2) display 'X' 
		// 	  Buttons at (2,0), (2,1) and (2,2) display 'O'		
		
		if (buttons[2][0].getText().equals("X") 
				&& buttons[2][0].getText().equals(buttons[2][1].getText()) 
				&& buttons[2][1].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		if (buttons[2][0].getText().equals("O") 
				&& buttons[2][0].getText().equals(buttons[2][1].getText()) 
				&& buttons[2][1].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		
		// 	  Winning Triple 4
		//	  Buttons at (0,0), (1,0) and (2,0) display 'X' 
		// 	  Buttons at (0,0), (1,0) and (2,0) display 'O'		
		if (buttons[0][0].getText().equals("X") 
				&& buttons[0][0].getText().equals(buttons[1][0].getText()) 
				&& buttons[1][0].getText().equals(buttons[2][0].getText())) {
			return true;
		}
		if (buttons[0][0].getText().equals("O") 
				&& buttons[0][0].getText().equals(buttons[1][0].getText()) 
				&& buttons[1][0].getText().equals(buttons[2][0].getText())) {
			return true;
		}
		
		// 	  Winning Triple 5
		//	  Buttons at (0,1), (1,1) and (2,1) display 'X' 
		// 	  Buttons at (0,1), (1,1) and (2,1) display 'O'		
		
		if (buttons[0][1].getText().equals("X") 
				&& buttons[0][1].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][1].getText())) {
			return true;
		}
		if (buttons[0][1].getText().equals("O") 
				&& buttons[0][1].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][1].getText())) {
			return true;
		}
		
		// 	  Winning Triple 6
		//	  Buttons at (0,2), (1,2) and (2,2) display 'X' 
		// 	  Buttons at (0,2), (1,2) and (2,2) display 'O'		
		if (buttons[0][2].getText().equals("X") 
				&& buttons[0][2].getText().equals(buttons[1][2].getText()) 
				&& buttons[1][2].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		if (buttons[0][2].getText().equals("O") 
				&& buttons[0][2].getText().equals(buttons[1][2].getText()) 
				&& buttons[1][2].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		
		// 	  Winning Triple 7
		//	  Buttons at (0,0), (1,1) and (2,2) display 'X' 
		// 	  Buttons at (0,0), (1,1) and (2,2) display 'O'		
		if (buttons[0][0].getText().equals("X") 
				&& buttons[0][0].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		if (buttons[0][0].getText().equals("O") 
				&& buttons[0][0].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][2].getText())) {
			return true;
		}
		
		// 	  Winning Triple 8
		//	  Buttons at (0,2), (1,1) and (2,0) display 'X' 
		// 	  Buttons at (0,2), (1,1) and (2,0) display 'O'		
		if (buttons[0][2].getText().equals("X") 
				&& buttons[0][2].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][0].getText())) {
			return true;
		}
		if (buttons[0][2].getText().equals("O") 
				&& buttons[0][2].getText().equals(buttons[1][1].getText()) 
				&& buttons[1][1].getText().equals(buttons[2][0].getText())) {
			return true;
		}
		
		return false;
	}
	
	public void clearBoard() {
		for (int i = 0; i < buttons.length; i++) {
			JButton[] innerArray = buttons[i];
			for (int j = 0; j < innerArray.length; j++) {
				JButton button = innerArray[j];
				button.setText("");
			}
		}
		round = 0;
	}

}