So I've been coding my TicTacToe project as a side project for some time now, and have hit another obstacle. I want to use a JButton in more than one method, but I don't know how to go about doing that. Here's my code till now.
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import java.util.Random ;
import java.util.Scanner ;
import javax.swing.JOptionPane ;
import javax.swing.JFrame ;
import javax.swing.JPanel ;
import java.util.InputMismatchException ;
import java.awt.BorderLayout ;
import java.awt.* ;
import java.awt.event.* ;
import javax.swing.JTextArea ;
import javax.swing.JButton ;
import javax.swing.JRadioButton ;
class TicTacToe
{
public int count = 1 ;
public String letter;
public boolean b1bool = true ;
public boolean b2bool = true ;
public boolean b3bool = true ;
public boolean b4bool = true ;
public boolean b5bool = true ;
public boolean b6bool = true ;
public boolean b7bool = true ;
public boolean b8bool = true ;
public boolean b9bool = true ;
public boolean win = false ;
public void main(String []args)
{
popupintroscreen();
}
public void popupintroscreen()
{
JTextArea introtext = new JTextArea("Welcome to TicTacToe v1.0. This is a Simple Tic Tac Toe app coded by Abhishek Pisharody. Press the button below to play, or view the instructions first, if you prefer. We hope you enjoy playing. Thank you.");
introtext.setEditable(false);
introtext.setLineWrap(true);
JButton startgamebutton = new JButton("Start Game");
startgamebutton.setToolTipText("Start a game of Tic-Tac-Toe");
startgamebutton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent gamestart)
{
JOptionPane.showMessageDialog(null, "Loading.....done!");
tictactoe();
}
});
JButton showinstructions = new JButton("Show Instructions");
showinstructions.setToolTipText("View game instructions. Worth checking out even if you know how to play.");
showinstructions.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent displayinstructionsprompt)
{
JOptionPane.showMessageDialog(null, "Nothing to see here..yet..off you go!");
}
});
JButton highscoresbutton = new JButton("High Scores");
highscoresbutton.setToolTipText("Show high scores for the game");
highscoresbutton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent highscoresbuttonclicked)
{
JOptionPane.showMessageDialog(null,"Not coded yet!");
}
});
JButton quitgamebutton = new JButton("Quit Game");
quitgamebutton.setToolTipText("Quit the game. But why? :(");
quitgamebutton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onquitgamebuttonclick)
{
JOptionPane.showConfirmDialog(null, "Really quit?");
System.exit(0);
}
});
JPanel gamebuttonsholder = new JPanel(new BorderLayout());
gamebuttonsholder.setSize(400,100);
gamebuttonsholder.add(introtext,BorderLayout.PAGE_START);
gamebuttonsholder.add(startgamebutton,BorderLayout.PAGE_END);
gamebuttonsholder.add(showinstructions,BorderLayout.LINE_START);
gamebuttonsholder.add(highscoresbutton,BorderLayout.CENTER);
gamebuttonsholder.add(quitgamebutton,BorderLayout.LINE_END);
JFrame introscreen = new JFrame("Tic Tac Toe");
introscreen.setSize(400,400);
introscreen.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
introscreen.setLocationRelativeTo(null);
introscreen.add(gamebuttonsholder);
introscreen.setVisible(true);
}
public int tictactoe()
{
final JButton b1 = new JButton("");
b1.setToolTipText("Mark this box");
b1.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if (b1bool == true){ count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b1.setText(letter);
b1bool = false ;
calculatevictory();
processturn();
}}});
final JButton b2 = new JButton("");
b2.setToolTipText("Mark this box");
b2.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if (b2bool == true){ count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b2.setText(letter);
b2bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b3 = new JButton("");
b3.setToolTipText("Mark this box");
b3.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if(b3bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b3.setText(letter);
b3bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b4 = new JButton("");
b4.setToolTipText("Mark this box");
b4.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if(b4bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b4.setText(letter);
b4bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b5 = new JButton("");
b5.setToolTipText("Mark this box");
b5.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if (b5bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b5.setText(letter);
b5bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b6 = new JButton("");
b6.setToolTipText("Mark this box");
b6.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if (b6bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b6.setText(letter);
b6bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b7 = new JButton("");
b7.setToolTipText("Mark this box");
b7.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if (b7bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b7.setText(letter);
b7bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b8 = new JButton("");
b8.setToolTipText("Mark this box");
b8.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if(b8bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b8.setText(letter);
b8bool = false ;
calculatevictory();
processturn();
}}
});
final JButton b9 = new JButton("");
b9.setToolTipText("Mark this box");
b9.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent onclickb1)
{
if(b9bool == true){
count++;
if(count == 1||count == 3 || count == 5 || count == 7 || count == 9 || count == 11)
{
letter = "O" ;
}
else if ( count == 2 || count == 4 || count == 6 || count == 8 || count == 10)
{
letter = "X" ;
}
b9.setText(letter);
b9bool = false ;
calculatevictory();
processturn();
}}
});
GridLayout gamescreenlayout = new GridLayout(3,3);
JPanel gamescreencontent = new JPanel();
gamescreencontent.setLayout(gamescreenlayout);
gamescreencontent.setSize(400,400);
gamescreencontent.add(b1);
gamescreencontent.add(b2);
gamescreencontent.add(b3);
gamescreencontent.add(b4);
gamescreencontent.add(b5);
gamescreencontent.add(b5);
gamescreencontent.add(b6);
gamescreencontent.add(b7);
gamescreencontent.add(b8);
gamescreencontent.add(b9);
JFrame gamescreen = new JFrame("Tic-Tac-Toe");
gamescreen.setSize(400,400) ;
gamescreen.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
gamescreen.setLocationRelativeTo(null);
gamescreen.add(gamescreencontent);
gamescreen.setVisible(true);
int sexyshit = 1 ;
return sexyshit ;
}
public void calculatevictory(){
if (b1.getText() == b2.getText() && b2.getText() == b3.getText() && b1.getText() != "")
{
win = true ;
}
else if (b4.getText() == b5.getText() && b5.getText() == b6.getText() && b4.getText() != "")
{
win = true ;
}
else if (b7.getText() == b8.getText() && b8.getText() == b9.getText() && b7.getText() != "")
{
win = true ;
}
else if (b1.getText() == b4.getText() && b4.getText() == b7.getText() && b1.getText() != "")
{
win = true ;
}
else if (b2.getText() == b5.getText() && b5.getText() == b8.getText() && b2.getText() != "")
{
win = true ;
}
else if (b3.getText() == b6.getText() && b6.getText() == b9.getText() && b3.getText() != "")
{
win = true ;
}
else if (b1.getText() == b5.getText() && b5.getText() == b9.getText() && b1.getText() != "")
{
win = true ;
}
else if (b3.getText() == b5.getText() && b5.getText() == b7.getText() && b3.getText() != "")
{
win = true ;
}
else
{
win = false ;
}
}
public void processturn()
{
if (win == true)
{
JOptionPane.showMessageDialog(null, letter + "wins!");
}
else if ( count == 9 && win == false)
{
JOptionPane.showMessageDialog(null, "Tie Game");
}
}
}`
When I try to run this, it tells me that the compiler couldn't find symbol b1. Would I have to make the buttons public(if so, how?), or use Inheritance? If it's the latter, please explain in simple terms, because I really haven't begun to learn inheritance yet.
Thank you in advance.
Declare your JButton outside the method, in the same place as where you are declaring your int, String, and booleans. In other words, something like
class TicTacToe
{
//...
JButton b1;
//...
public int TicTacToe()
{
b1 = new JButton(); //note that you don't need the ""
}
}
Incidentally, I'd recommend using arrays and looping through them rather than having 9 of everything and having to copy-paste code lots of times.