store objects in array and show them (Java)

Question

I am working on a java tic tac toe game. First, I created a class for buttons, I then tried to store an array of instances of that class. Everything was working fine until I added those objects to the frame. Here is my code:

package tictactoe;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class TicTacToe extends JFrame
{

    TicTacToe()
    {
        this.setLayout(null);
        this.setResizable(true);
        this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
        this.setSize(500,500);    
        this.setBackground(Color.blue);


         PlayingButton[] b = new PlayingButton [9];
        for (int i = 0 ; i < 9 ; i++)
        {
             b[i] = new PlayingButton();
        }
        b[0].setBounds(0,0,50,50);
        b[1].setBounds(50,0,50,50);
        b[2].setBounds(100,0,50,50);
        this.add(b[0]);
        this.setVisible(true);
    }


    public static void main(String[] args) 
    {
        TicTacToe board = new TicTacToe();

    }

}

The line that is causing me problems:

this.add(b[0]);

And then, what happens? What do you expect the code to do, and what does it do instead? — JB Nizet
– JB Nizet, Commented Dec 14, 2016 at 18:51
What is PlayingButton? What happened? Is there a stack trace? How do I ask a good question? — flakes
– flakes, Commented Dec 14, 2016 at 18:51
PlayingButton is another class i created it to take an objects from it . — M-Amr Moussa
– M-Amr Moussa, Commented Dec 14, 2016 at 18:53
@M-AmrMoussa Yes, but how are we supposed to find a problem with it if we can't see how it was coded? You need to provide a Minimal, Complete, and Verifiable example — flakes
– flakes, Commented Dec 14, 2016 at 18:54

Erfan Gholamian · Accepted Answer · 2016-12-14 18:58:51Z

3

PlayingButton class should extend JComponent or it's subclasses.

answered Dec 14, 2016 at 18:58

Erfan Gholamian

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